Parts

WARNING
HIGH PRESSURE SPRAY CAN CAUSE SERIOUS INJURY.
FOR PROFESSIONAL USE ONLY. OBSERVE ALL WARNINGS.
Read and understand all instruction manuals before operating equipment.
, ‘..., ‘..“’ _.
FLUID lNJECTlO/V HAZARD
General Safetv Pressure Relief Procedure
This equipment generates very high fluid pressure. Spray from To reduce the risk of serious bodily injury, including injection,
leaks or ruptured components can inject fluid through your splashing in the eyes or on the skin, or injury from moving
skin and into your body and cause extremely serious bodily in- parts, always follow this procedure whenever you shut off the
jury, including the need for amputation. Also, fluid splashed pump, when checking or servicing any part of the system,
into the eyes or onto the skin can cause serious damage. when installing, cleaning, or changing parts, and whenever
you stop using the pump.
ALWAYS follow the Pressure Relief Procedure, at right,
before cleaning, removing or servicing any system equipment. 1. Shut off the air to the pump.

NEVER try to stop or deflect leaks with your hand or body. 2. Close the bleed-type master air valve (required in your
system).
Keep your hands away from the end of any drain valve in the
system when opening it. 3. Open any drain valves used in your system, having a con-
tainer ready to catch the drainage. Keep your hands away
Be sure equipment safety devices are operating properly from the end of any drain valve when opening it.
before each use.
4. Leave the drain valve(s) open until you are ready to pump
Medical Alert-Airless Spray Wounds again.
If any fluid appears to penetrate your skin, get EMERGENCY
MEDICAL CARE AT ONCE. DO NOT TREAT AS A If you suspect that the hose or plumbing line is completely
SIMPLE CUT. Tell the doctor exactly what fluid was injected. clogged, or that pressure has not been fully relieved after
following the steps above, VERY SLOWLY loosen the hose or
Note to Physician: Injection in the skin is a traumatic in- plumbing line end coupling and relieve pressure gradually,
jury. It is important to treat the injury surgically as soon then loosen completely. Now clear the hose or plumbing line.
as possible. Do not delay treatment to research toxicity.
Toxicity is a concern with some exotic coatings injected
directly into the blood stream. Consultation with a plastic
surgeon or reconstructive hand surgeon may be advisable.

General Safety System Pressure

Any misuse of the equipment or system components, such as The 43:l Bulldog pump develops 4300 psi (307 bar) MAX-
overpressurizing, modifying parts, using incompatible IMUM WORKING PRESSURE at 100 psi (7 bar) MAXIMUM
chemicals and fluids, or using worn or damaged parts, can INCOMING AIR PRESSURE. NEVER exceed 100 psi (7 bar) air
cause them to rupture and result in fluid injection or other supply to the pump. Be sure that all equipment and ac-
serious bodily injury, fire, explosion or property damage. cessories are rated to withstand the maximum working
pressure of this pump. DO NOT exceed the maximum working
NEVER alter or modify any part of this equipment; doing so pressure of any component used in the system.
could cause it to malfunction.
Fluid Compatibility
CHECK all equipment regularly and repair or replace worn or BE SURE that all fluids and solvents used are chemically com-
damaged parts immediately. patible with the wetted parts shown in the Technical Data on
the back cover. Always read the manufacturer’s literature
Read and follow the fluid and solvent manufacturer’s literature before using fluid or solvent in the pump.
regarding the use of protective clothing and equipment.

2 307-714
FlRE OR EXPLOSION HAZARD :,% k% :
Static electricity is created by the high velocity flow of fluid
through the pump and hose or plumbing line. If every part of
the system is not properly grounded, sparking may occur, and
the system may become hazardous. Sparking may also occur
when plugging in or unplugging a power supply cord. Sparks
can ignite fumes from solvents and the fluid, dust particles
and other flammable substances, whether you are indoors or
outdoors, and can cause a fire or explosion and serious bodily
injury and property damage.
If you experience any static sparking or even a slight shock
while using this equipment, SHUT OFF THE PUMP IM-
MEDIATELY. Check the entire system for positive grounding.
Do not use the system again until the problem has been iden-
tified and corrected.
Grounding
To reduce the risk of static sparking, ground the pump and all
other components used or located in the area. CHECK your
local electrical code for detailed grounding instructions for
your area and type of equipment and be sure to ground all of To ground the pump, loosen the grounding lug locknut (A)
these components: and washer (6). Insert one end of a 12 ga (1.5 mm2) minimum
ground wire (C) into the slot in lug (D) and tighten the locknut
Pump: use a ground wire and clamp as shown in Fig 1. securely. See Fig 1. Connect the other end of the wire to a
true earth ground such as a steel building column or water
use only grounded
Air and fluid hoses or plumbing lines: pipe. Always check your local code. See ACCESSORIES for
hoses and plumbing lines with a maximum of 500 feet available ground wire and clamp.
(150 m) combined length to ensure grounding continuity.
Refer to Hose and Plumbing Line Grounding Con- Flushing Safety
tinuity, below. be sure the entire system and flushing pails
Before flushing,
are properly grounded. Refer to Grounding, above. Follow
Air compressor: follow the air compressor manufacturer’s the Pressure Relief Procedure on page 2. Always use the
recommendations. lowest possible fluid pressure.
All solvent pails used when flushing, according to local
code. Use only metalpails, which are conductive. Do not
place the pail on a non-conductive surface, such as paper
or cardboard, which interrupts the grounding continuity.

HOSE AND PLUMBING LINE SAFETY

High pressure fluid in the hoses or plumbing lines can be very HANDLE AND ROUTE HOSES CAREFULLY. Do not pull on
dangerous. If the hose or plumbing line develops a leak, split hoses to move equipment. Do not use fluids or solvents which
or rupture due to any kind of wear, damage or misuse, the are not compatible with the inner tube and cover of the hose,
high pressure spray emitted from it can cause an injection in- or with the plumbing lines and components. DO NOT expose
jury or other serious bodily injury or property damage. Grace hose to temperatures above WOOF (B2OC) or below
-4OOF I-40°C).
ALL FLUID HOSES MUST HAVE SPRING GUARDS! The
spring guards help protect the hose from kinks or bends at or Hose and Plumbing Line Grounding Continuity
close to the coupling which can result in hose rupture. Proper hose and plumbing line grounding continuity is essen-
tial to maintaining a grounded system. Check the electrical
TIGHTEN all fluid connections securely before each use. High resistance of your air and fluid hoses or plumbing line at least
pressure fluid can dislodge a loose coupling or allow high once a week. If your hose does not have a tag on it which
pressure spray to be emitted from the coupling. specifies the maximum electrical resistance, contact the hose
supplier or manufacturer for the maximum resistance limits.
NEVER use a damaged hose or plumbing component. Before Use a resistance meter in the appropriate range for your hose
each use, check the entire hose or plumbing line for cuts, to check the resistance. If the resistance exceeds the recom-
leaks, abrasion, bulging cover, or damage or movement of the mended limits, replace it immediately. An ungrounded or
couplings. If any of these conditions exist, replace the hose or poorly grounded hose or plumbing line can make your system
defective components immediately. DO NOT try to recouple hazardous. Also read FIRE OR EXPLOSION HAZARD, above.
high pressure hose or mend it with tape or any other device. A
repaired hose cannot contain the high pressure fluid.

MOVING PARTS HAZARD

Moving parts can pinch or amputate your fingers or other
body parts. NEVER operate the pump with the air motor shield
removed. KEEP CLEAR of moving parts when starting or
operating the pump. Before checking or servicing the pump,
follow the Pressure Relief Procedure on page 2 to prevent
the pump from starting accidentally.

MPORTANT
United States Government safety standards have been adopted under the Occupational Safety and Health Act. These standards-par-
ticularly the General Standards, Part 1910, and the Construction Standards, Part 1926-should be consulted.

307-714 3
 ., :‘: ,’ ,: ..,, , ,, ‘.:;:xs$
TYPICAL INSTALLATION ~.~~~~~~~~:~~~~:.~~~,~;~~~~ ., .,: +:‘,;: .: . . . . . . . . . ..<........< :. :. <.. : ,,,.I:

KEY
Grounded Air Supply Line
Air Filter
Air Line Oiler
Bleed-Type Master Air Valve
Air Regulator
Air Inlet
Fluid Outlet
Grounded Fluid Line
N kM Fluid Inlet
Grounded Fluid Supply Line
: Fluid Reservoir
P Fluid Drain Valve

This pump is designed to supply hydraulic oil to the ac- WARNING

cumulators in an oil rig blow-out prevention system. Two accessories, the bleed-type master air valve
(HI and the fluid drain valve (P), are required for
The Typical Installation above is only a guide. Contact your system to reduce the risk of serious bodily in-
your Grace representative for assistance in designing a jury from moving parts, injection, or splashing in
system to meet your needs. the eyes or on the skin when shutting off the
pump.
Mount the pump to suit your type of installation. The
Dimensional Drawing on the back page gives The bleed-type master air valve relieves air trapped
measurements needed for installing the pump. between the valve and pump, after the pump is
shut off. Trapped air can cause the pump to cycle
Reference numbers and letters in the text refer to the unexpectedly and result in serious bodily injury, in-
callouts on the drawings. cluding amputation, if you are adjusting or repair-
ing the pump. The master air valve should be
Grounding the Pump located within easy reach of the pump.

The fluid drain valve helps relieve pressure in the

displacement pump and line when shutting off the
HAZARD on page 3 and refer to your local elec- pump.

On the air line (El, install an air regulator (I) near the pump
System Accessories air inlet (J) to control pump speed and pressure, and an
Refer to the Typical Installation above, and install the air line oiler (G) downstream from the regulator to provide
system accessories in the approximate order shown. automatic lubrication to the air motor. Upstream from the
Accessories are shown on page 14. oiler, install an air filter (F) to remove harmful dirt and
moisture from the compressed air supply.
NOTE: To ensure maximum pump performance, be
sure that any accessory used is properly sized Connect the Lines
to meet your system requirements. In this system, fluid and air lines may be either hoses or
hard plumbed. All lines must be grounded. Connect the
air supply (E) to the 3/4 npsm(f) air inlet (J). Connect
the fluid supply line (N) to the 1 in. npt(f) fluid intake (M)
and the fluid line (L) to the 3/4 npt(f) fluid outlet (K).

4 307-714
 WARNING Starting and Adjusting Pump
Pressure Relief Procedure Open the fluid supply shut off valve and the system
To reduce the risk of serious bodily injury, in- drain valve. Open the bleed-type master air valve and
cluding injection, splashing in the eyes, or injury slowly open the air regulator until the pump starts to cy-
from moving parts, always follow this procedure cle (about 40 psi (2.8 bar)). Allow pump to cycle slowly
whenever you shut off the pump, when checking until all air is purged from lines. The lines are purged
or servicing any part of the system, when install- when the fluid emitted from the drain valve is flowing in
ing, cleaning, or changing parts, and whenever a steady stream. With the lines purged, close the
you stop using the pump. system drain valve. The pump will stall against pressure.

1. Shut off the air to the pump. With pump and lines primed, and with adequate air
2. Close the bleed-type master air valve (required pressure and volume supplied, the pump will start and
in your system). stop as supply demands or until the bleed-type master
3. Open any drain valves used in your system, air valve is shut off.
having a container ready to catch the drainage.
Keep your hands away from the end of any Use an adequately sized air regulator to control pump
drain valve when opening it. speed and fluid pressure. Always use the lowest air
4. Leave the drain valves open until you are ready pressure necessary to give you the results you want.
to pump again. Higher pressure causes premature pump wear.

If you suspect that the hose or plumbing line is

completely clogged, or that pressure has not been
fully relieved after following the steps above,
VERY SLOWLY loosen the hose or line end coupl-
ing and relieve pressure gradually, then loosen
completely. Now clear the hose or line.

Flush Pump Before Using

Pumps are tested with lightweight oil which is left in to
protect pump parts. To prevent contamination of fluid,
flush the pump with a compatible solvent before using it.

MAINTENANCE :;:;,;;..yi;t, ;>~,.,;:‘,,; .:: ,, ,, I>& ~.~&s.. ?3$i(‘l .~.*+++y~~ j

/ :, :,,,, .’ :.,,;:. : ,. ., :~.;.~i.::‘..~‘.‘:~, :. ;,+.:, .:.r ;, .,y..,. < ‘,; ,,; ;, ::, ::j::. ;:;, :: ..;.,,.;..:<, ~,.‘.:~:~~~:“‘~f:~~~,;, i.:.;, ~~:~. ~i,.,~~:~~,g.~~.~

Check tightness of throat packing nut weekly. The with compatible solvent. Be sure to eliminate all air from
packing 6ut should be tight enoughto prevent leakage fluid system to prevent corrosion.
-no tighter. ALWAYS follow the Pressure Relief Pro-
cedure above, before adjusting the packing nut to Corrosion Protection
reduce the risk of serious bodily injury. CAUTION
Water, or even moist air, can cause pump corro-
NEVER allow the pump to run dry of fluid being sion. To prevent corrosion, NEVER leave the pump
pumped. A dry pump will quickly accelerate to a high filled with water or air. After normal flushing, flush
speed, possibly damaging itself. If your pump ac- the pump again with mineral spirits or oil-based sol-
celerates quickly, or is running too fast, stop it im- vent, relieve pressure, and leave the mineral spirits
mediately and check the fluid supply. If the supply con- in the pump. Be sure to follow all steps of the
tainer is empty and air has been pumped into the lines, Pressure Relief Procedure, above.
prime pump and lines with fluid or flush and leave fillled

307-714 5
 WARNING 5. Use the checking methods listed in the Check Chart
Pressure Relief Procedure on page 7 to find where the air is leaking. Replace
To reduce the risk of serious bodily injury, in- parts as necessary.
cluding injection, splashing in the eyes or on the
skin, or injury from moving parts, always follow Fluid Leaks
this procedure whenever you shut off the pump, If the pump continues to operate when the hydraulic
when checking or servicing any part of the outlet valve is closed, the packings are worn or the ball
system, when installing, cleaning, or changing checks are leaking.
parts, and whenever you stop using the pump.
If anything more than a light film of fluid is detected at
1. Shut off the air to the pump. the weep hole, the base bearings gasket (100) or both
2. Close the bleed-type master air valve (required the gasket and base bearing (98) need to be replaced.
in your system). See Fig 2.
3. Open any drain valves used in your system,
having a container ready to catch the drainage. Stalled Air Motor
Keep you hands away from the end of any drain A stalled air motor may be caused by icing due to
valve when opening it. unusual environmental conditions such as: (1) operating
4. Leave the drain valves open until you are ready at a high cycle rate under hot, high humidity conditions
to pump again. or (2) long operation under cold arctic conditions.
If you suspect that the hose or plumbing line is If motor stalling is not caused by environmental condi-
completely clogged, or that pressure has not been tions, try filling the air lubricator with non-detergent,
fully relieved after following the steps above, SAE #lO oil to prevent stalling.
VERY SLOWLY loosen the hose or line end coupl-
ing and relieve pressure gradually, then loosen To restart a stalled motor, either turn off the air and
completely. Now clear the hose or line. allow the ice to melt (if stalling was due to icing) or
follow this procedure:

1. Turn off the air supply.

2. Remove the lift ring (74).

3. Push down the air valve housing (102) with a screw-

driver. DO NOT use your fingers1 See Fig 2.
Locating Air Leaks
Air leaks can generally be detected by listening when the
pump is not running. To locate where the air is leaking: disengage the air
the air motor can
1. Shut off the air supply and disconnect the air hose. pinch or amputate your fingers.

2. Screw the inlet union (117) out of the air manifold

(87). 4. Screw the lift ring (74) back on.

3. Remove the air motor shield (73) and screw the inlet 5. Turn on the air supply.
union (117) back into the manifold (87). See Fig 2.

4. Connect the air hose and turn the air on. DO NOT
exceed 40 psi inbound air pressure.

6 307-714
 With Stroke Fig. Ref.
Position Check Points Checking Method Cause

A (air By feel Blown air manifold

manifold) gaskets (91).

DOWN B (between By feel Blown air cylinder

cylinder & gasket ( 103).
base)
By feel Blown base bearings,
C (weep hole) upper o-ring, or cup
seal.

D (trip rod) Squirt oil around Worn trip rod pack-

bearing (98) ing (71) or bearing
(98).

UP E (air director Squirt oil around air Worn air valves (92)
valves) valves (92) or their packings
(93).

F (exhaust Hold paper strip over Worn air piston

BOTH holes) exhaust holes; see o-ring (69).
Detail in Fig 2.

IWARNING
Keep fingers out of exhaust openings Moving
parts in the air motor may pinch or amputate

PUSH VALVE HOUSING DOWN TO

RESTART STALLED MOTOR.

/ I

F
PAPER
STRIP t

Fig 2

307-714 7
AIR MOTOR SERVICE ,.,. c < , . , .: ;,.-‘,.. : , ‘: : : :‘..; : :, > : :>,<>

117

Disassembly 73
1. Disconnect all hoses, tubes, controls etc. from the
air motor to provide ease in servicing.

3. Remove the lift ring (74). 85 I I

EElYE To Ih I 77-
3. Remove the swivel adapter (117). Remove the eight (34 N:ml
capscrews (75) and lockwashers (761, then lift the
air motor shield (73) off the motor.

4. Remove the air inlet spring cap (107) and the detent
spring retainers (77). Take out the compression
springs (781, spring guides (791, and the plungers
(80). See Fig 3. Inspect the parts for wear or
damage and replace them as necessary.

CAUTION
HANDLE SPRINGS CAREFULLY. Scratches or
nicks will cause early spring failure.

5. Remove the four screws (82) and lockwashers (83)

holding the detent housing (81). Lift the housing up
off the air manifolds (87) while holding the detent
rollers (89) in the housing. See Fig 3.

6. Remove the detent rollers (891, axles (901, thrust

washer (961, and dampening pad (97) from the de-
tent housing (81). Inspect the parts for wear and
damage. If either the roller or axle is worn or
damaged, replace both; they are a matched set. 105
TORQUE TO I
7. Remove the capscrews (85) and lockwashers (86). L 91
Carefully remove both air manifolds, as the air
director valves (92) are spring compressed between
the air valve housing (102) and the manifold valve
plates (101). Check the air director valves (921,
o-rings (93) and springs (94) for wear or damage.
Replace if necessary.

8. Remove the four screws (88) in each manifold plate

(101). Check the manifold plates and seals (42) for
wear or damage. Also remove the air manifold
gaskets (91). Replace any worn parts.

9. Remove the trip rod nut (106) and the lockwasher

(86) from the trip rod (43a). Pull the air valve hous-
ing (102) up off the trip rod. See Fig 3.

10. Pull the trip rod and piston assembly (43) up as far
as possible. Grip the trip rod Ma) below the
bushing (95) with padded pliers, and screw the
bushing off the trip rod.

Take special care to avoid damaging the plated

surface of the trip rod. Padded pliers 207-579 are
available. See ACCESSORIES, page 14.
ICAUT’ON

67 i‘”\
Fig 3
8 307-714
11. Remove the thrust washer (96) and dampening pad 10. Place the air valve housing (102) over the trip rod
(97) from the air motor cylinder (104). bushing (95).

12. Remove the eight lockwashers 11. Secure the air valve housing (102) with the trip rod
(68) holding the air to the base (46). nut (106) and lockwasher (86). Torque the nut to
20-25 ft-lb (27-34 N-m) until .031 in. (about the
13. Carefully pull the air motor cylinder (104) straight up thickness of a dime) of the trip rod (43a) extends
off the air motor base (46) and the trip rod and above the nut.
piston assembly (43a). Be careful not to tilt the
cylinder as this could damage the smooth inner sur- 12. Place the o-rings (93) around each director valve
face. Check the piston o-ring (69) for wear or (92).
damage and replace if necessary. The diameter of
the o-ring is larger than that of the piston. Inspect 13. Place the two compression springs (94) in each side
the cylinder gasket (103) and replace as necessary. of the air valve housing (102).

Assembly 14. With the air valve housing (102) pushed all the way
1. Install the piston o-ring (69) on the piston (44) using down against the air motor cylinder (1041, place the
heavy petroleum grease. Be sure the slots in the air director valves (92) against the springs (94) and
gasket (103) align with the air passages in the air compress them into the air valve housing (102).
motor cylinder (104). Since the diameter of the
o-ring is greater than that of the piston, gather the 15. Install the dampening pad (97) and thrust washer
excess o-ring to one side of the piston and tuck it (96) in the detent housing (81). Use a heavy
into one of the two indented areas of the air motor petroleum base grease to hold them in position.
cylinder.
16. Coat the plungers MO), spring guides (791, and
2. Secure the cylinder (104) with the eight screws compression springs (78) with heavy petroleum
(105) and washers (68). Torque to 25 ft-lb (34 Nmm). grease and install them in the detent housing.

3. Be sure the back-up washer (99) and v-packing (71) 17. Engage the threads of the detent spring retainers
are in place on the trip rod bearing (98). (77) one turn into the detent housing (81).

4. Place the copper gasket (100) over the trip rod Ma) 18. Place the detent axle (90) and roller (89) into the de-
and attach trip rod bearing (98) to trip rod. tent housing (81), using heavy petroleum grease.

5. rl;stall the dampening pad (97) and thrust washer 19. Place the detent housing (81) on the air manifolds
. (87) while holding the detent axles (90) and rollers
(89) in position with your fingers from the top of the
6. Place the valve plate seals (42) between the air housing.
manifolds (87) and the valve plates (lOl), with the
rounded side of the valve plates out. Screw four 20. Before installing the four detent housing screws
manifold plate screws (88) into both air manifolds. (82) and lockwashers (83), be sure the detent axles
(90) and rollers (89) align correctly with the valve
7. Before installing the air manifolds (87), pull the trip housing (102). Tighten the detent spring retainers
rod and piston assembly up as far as possible. Line (77) as required to properly align the rollers (89).
up the air manifolds with the gaskets (91) and
loosely screw the two rear manifold screws (85) 21. Screw the four detent housing screws (82) with
with lockwashers (86) into both air manifolds. lockwashers (83) into the housing (81).

8. Position the alignment tool (see ACCESSORIES, 22. Position the spring cap (107) on the air manifold.
page 14) between the two air manifolds. Hold the
two air manifolds against the alignment tool and 23. Place the air motor shield (73) over the air motor
torque the screw (85) in each manifold to 25 ft-lb and secure it with the eight shield retaining screws
(34 Nmm). Screw another screw into each manifold. (75) and lockwashers (76).
Remove the alignment tool.
24. Reinstall the swivel adapter (117). Screw in the lift
NOTE: lf the alignment tool is not available, com- ring (74).
plete steps 9 and 10 which follow, then meas-
ure and set the space at 1.8 in. (45.7 mm) be-
tween the two air manifolds and the air valve
housing (102).

9. Screw the trip rod bushing (95) onto the trip rod
MaI. Hold the trip rod with padded pliers 207-579.
See ACCESSORIES, page 14.

307-714 9
DISPLACEMENT PUMP SERVICE
WARNING Assembly
To reduce the risk of serious bodily injury, in- 1. Carefully slide the packing housing (47) onto the
cluding injection, or splashing in the eyes or on piston shaft (45).
the skin, ALWAYS follow the Pressure Relief
Procedure on page 6 and relieve system 2. Insert the packing housing (47) into the air motor
pressures before servicing, cleaning, or removing base (46) by tapping lightly on the housing.
any parts.
3. Insert the packings into the packing housing (47)
Disassembly from the bottom and push them up toward the air
motor. Be sure the lips of the v-packings are facing
1. Disconnect all hoses, tubes, controls etc. from the down against the fluid pressure. The packings
pump to provide ease in servicing. should be inserted in the following order: female
gland, white v-packing, black v-packing, white
2. Loosen but do not remove the intake valve housing v-packing, black v-packing, male gland, compres-
(62) while the displacement pump is still assembled sion spring, washer, and retaining ring.
to the air motor base (46). See Fig 4.
4. Place the piston packings onto the piston and valve
3. Remove the outlet adapter (56). Inspect the o-ring seat housing (54) in the following order, with the
(72) and replace it if necessary. lips of the v-packings facing up against fluid
pressure: female gland (53), white v-packing (1121,
4. Remove the cylinder coupling nut (57). black v-packing (1111, white v-packing (1121, black
v-packing (11 l), male gland (511, spring (501, and
5. Insert a 3/4 npt pipe nipple or extension into the washer (49).
outlet of the cylinder (55). Use this as a handle to
turn and remove the cylinder. 5. Apply Loctite@ 27 sealant or equivalent to the
housing (54) threads.
6. Remove the intake housing (62) from the cylinder
(55). Inspect the ball stop pin (58), guide (591, ball 6. Place the check ball (48) onto the seat of the piston
(601, and o-ring (61) for wear or damage, and and valve seat housing (54) and screw the housing
replace as necessary. into the piston shaft (45). Torque the housing to
137-143 ft-lb (186-194 N-m).
7. Unscrew the piston and valve seat housing (54)
from the trip rod and piston assembly (43). Remove 7. Slide the pump cylinder (55) into the air motor base
the ball (48) from its seat, then remove the washer (46).
(491, spring (50), male gland (511, v-packings (111,
1121, and female gland (53). Inspect the parts for 8. Screw the cylinder coupling nut (57) onto the air
wear or damage and replace as necessary. motor base (46), securing the pump cylinder (55).

8. Remove the packing housing (47) from the air 9. With the o-ring (72) in place, screw the outlet
motor base (46). Take out the parts and clean all ex- adapter (56) into the pump cylinder.
cept the seals with a compatible solvent. Clean the
seals with a soft cloth. Check the packing housing 10. Place the ball stop pin (58) into the upper set of
for wear or damage and replace if necessary. As a holes of the ball guide (59).
preventive maintenance procedure, replace all the
seals every five years, or earlier if necessary. 11. Place the check ball (60) into the intake valve hous-
ing (62). Insert the ball guide (59) containing the
9. Inspect the piston shaft (45) for scoring or wear. stop pin into the intake valve housing.
The piston shaft is a part of the trip rod and piston
assembly (431, which must be replaced as one 12. Put the o-ring (61) in place and screw the intake
piece. DO NOT break loose the epoxy fitting. valve housing (62) into the base of the pump
Replacing this assembly requires disassembly of the cylinder (55). Tighten securely.
air motor, as described in the preceding section.
Scoring or irregular surfaces on the piston shaft or 13. Reconnect all hoses, plumbing etc. to restore the
polished inner wall of the cylinder (55) causes pump to operation. Reconnect the ground wire if it
premature packing wear and leaking. Check these was disconnected.
parts by rubbing a finger over the surface or holding
the part up to the light at an angle. Replace worn or
damaged parts.

10 307-714
.Packing Housing Kit
0-RING

V-PACKING

GLAND Memale’
V-PACKING (white)
LIPS Of
V-PACKINGS V-PACKING (black)
MUST FACE V-PACKING (white)
DOWN
V-PACKING (black)
GLAND (male’
SPRING

WASHER

RETAINING R’NQ

54
APPLY ,
era. a.- I
AND TORQUE
TO 137-143 ft-lb

307-714 11
Model 218-334, Series A

185

78 43a

46

LIPS OF r*------ 111

V-PACKINGS
MUST FACE 112
UP t

54
APPLY I

68
104

12 307-714
PARTS LIST 1 ‘i. : i 4 ,J
..v:.:, .‘(‘( . . ( .,:

DESCRIPTION QN
REF PART
NO. NO.
DESCRIPTION
!Ed. ZRT.
168-184 SEAL, valve plate 91 168-183 GASKET, air manifold; Buna-N 2
218596 TRIP ROD AND PISTON 92 168-182 VALVE, air director
ASSEMBLY 156698 O-RING; Buna-N s
218-598 .ROD, trip ii 161-575 SPRING, compression 2
177-080 PISTON, air motor 95 177-134 BUSHING, trip rod
215-916 SHAFT, piston 161-576 WASHER, thrust :
177-084 BASE, air motor E 161-577 ;f~k$veniw
215-674 HOUSING, packing 215-933 1
101822 BALL, stainless steel; 5/8” ii 161-559 WASHER, back-up; leather 1
177-067 WASHER, back-up 150647 GASKET; brass
105757 SPRING, wave 1: 169-584 PLATE, valve :
177-073 GLAND, male; brass 102 161-585 HOUSING, air valve 1
104-029 CLAMP, grounding 161-556 GASKET
178-065 GLAND, female; brass 1: 177-486 CYLINDER, air motor 1
178-188 HOUSING, piston and valve seat 105 100-424 CAPSCREW, hex-head; l/2-13 x 1” 8
177-083 CYLINDER, pump 177-135 NUT, trip rod 1
177-065 ADAPTER, outlet; 3/4 npt(f) x 1: 168-135 CAP, spring
l-1/16-12 un 110 104-582 WASHER, tab 1
177-071 NUT, coupling 111 178-066 V-PACKING; rubber
172-399 PIN, ball stop 112 178-067 V-PACKING; UHMWPE ;
176-532 GUIDE, ball 117 207-648 UNION, adapter; 90° swivel;
102-973 BALL, stainless steel; 2” 3/4 npsm(f) 1
105-756 O-RING; Buna-N
215-673 HOUSING, intake; 1” npt(f)
166-701 PIN, ball stop
100-018 LOCKWASHER, spring; 1 /I?’ HOW TO ORDER REPLACEMENT PARTS
161-578 O-RING, piston; Buna-N
176-546 V-PACKING: polyurethane 1. To be sure vou receive the correct replacement parts,
105-765 O-RING; Buna-N kit or acce&ories, always give all of the information
169-588 SHIELD, air motor requested in the chart below.
180-952 LIFT RING
100333 CAPSCREW, hex-head; 2 Check the parts list to identify the correct part number;
l/4-20 x l/2” do not use the ref. no. when ordering.
106016 LOCKWASHER, spring; l/4”
161587 RETAINER, detent spring 3 Order all parts from your nearest Grace distributor.
161589 SPRING, compression
161588 GUIDE, spring
169-583 PLUNGER, detent 6 digit
177-664 HOUSING, detent PART
101-713 CAPSCREW, hex-head; 7/16-14x 3” N U M B E R ON PART DESCRIPTION
loo-052 LOCKWASHER, spring; 7/16”
102-726 PLUG, pipe, socket-head; 3/4 npt
100-101 CAPSCREW, hex-head; 3/8-16x 1”
loo-133 LOCKWASHER, spring; 3/8” I I
168-187 MANIFOLD, air I I I I
101-716 SCREW, flat-head machine; No.
10-24x l/2”
169-585 ROLLER, detent
169-586 AXLE, detent

307-714 1 3
ACCESSORIES (Must be purchased separately)

AIR PRESSURE REGULATOR GROUNDING CLAMP 103-539

300 psi (21 bar) MAXIMUM WORKING PRESSURE
GROUND WIRE 205-950
205-197 l/2 npt inlet 8 outlet 25 ft (7.6 m) long
207-756 3/4 npt inlet & outlet

AIR LINE FILTER AIR LINE LUBRICATOR

250 psi (17.5 bar) MAXIMUM WORKING PRESSURE 250 psi (17.5 bar) MAXIMUM WORKING PRESSURE
105-149 l/2 npt inlet b outlet 214-848 l/2 npt inlet 6 outlet
105-150 3/4 npt inlet b outlet 214-849 3/4 npt inlet b outlet

BLEED-TYPE MASTER AIR VALVE 107442 SPECIAL TOOLS

m psi (21 bar) MAXIMUM WORKING PRESSURE 207-679 Padded Pliers
Relieves air trapped in the air line between the pump air 158-513 Alignment Tool
inlet and this valve when closed.
l/2 npt(m x f) inlet and outlet

1 4 307-714
 DIMENSIONAL DRAWING

TECHNICAL DATA
&I mm1 DIA.
Maximum working pressure : 4300 psi (301 bar)
314 npsm Maximum air input pressure : 100 psi (7 bar)
AIR INLET Air inlet : 314 npsm(f)
Fluid inlet : 1” npt(f)
Fluid outlet : 3/4 npt(f)
1.70 in Wetted parts : Carbon Steel; Stainless StWl,
Chrome Plating, Zinc Plating,
Nickel Plating, Brass, Buna-N
NOTE: Fluid fitting is A

1.38 in
80’ from Weep Hole

2.65 in

FLUID OUTLET

14.7”
(373.4 mm)
10.5” 4.31 in
085.7 mm) I

1” npt
FLUID INTAKE

l/2-13 UNC-28 on
7.25” (184 mm1 Dia. Bolt Circle
l/2-13 UNC-26 on
8.4” (224 mm) Dia. Bolt Circle

307-714 15
 Order of v-packings in Packing Housing Kit illustra-
tion (inset of Fig 4) corrected.

WARRANTY

Grace warrants all equipment manufactured by it and bearing its name to be free from defects in material and workman-
ship on the date of sale by an authorized Grace distributor to the original purchaser for use. As purchaser’s sole remedy
for breach of this warranty, Grace will, for a period of twelve months from the date of sale, repair or replace any part of the
equipment proven defective. This warranty applies only when the equipment is installed, operated and maintained in
accordance with Grace’s written recommendations.

This warranty does not cover, and Grace shall not be liable for, any malfunction, damage or wear caused by faulty installa-
tion, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or
substitution of non-Grace component parts. Nor shall Grace be liable for malfunction, damage or wear caused by the
incompatibility with Grace equipment of structures, accessories, equipment or materials not supplied by Grace, or the
improper design, manufacture, installation, operation or maintenance of structures, accessories, equipment or materials
not supplied by Grace.

This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Grace
distributor for verification of the claim. If the claimed defect is verified, Grace will repair or replace free of charge any
defective parts. The equipment will be returned to the original purchaser transportation prepaid. If inspection of the equip-
ment does not disclose any defect in material or workmanship, repairs will be made at a reasonable charge, which
charges may include the costs of parts, labor and transportation.

DISCLAIMERS AND LIMITATIONS

THETERMSOFTHISWARRANTYCONSTITUTE PURCHASER’SSOLEAND EXCLUSIVE REMEDYANDARE IN LIEUOFANY OTHERWARRANTIES

(EXPRESS OR IMPLIED), INCLUDING WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE, AND OF
ANY NON-CONTRACTUAL LIABILITIES, INCLUDING PRODUCT LIABILITIES, BASED ON NEGLIGENCE OR STRICT LIABILITY. EVERY FORM OF
LIABILITY FOR DIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES OR LOSS IS EXPRESSLY EXCLUDED AND DENIED. IN NO CASE SHALL
GRACO’SLIABILITYEXCEEDTHEAMOUNTOFTHE PURCHASE PRICE. ANYACTION FORBREACH OFWARRANTY MUSTBE BROUGHTWITHIN
-IWO (2) YEARS OF THE DATE OF SALE.

EQUIPMENT NOT COVERED BY GRACO WARRANTY

GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PUR-
POSE, WITH RESPECTTO ACCESSORIES, EQUIPMENT MATERIA LS, 0~ COMPONENTS SOLD BUT NOT M A NUFACTURED BY GRACO. These
items sold, but not manufactured by Grace (such as electric motor, switches, hose, etc.) are subject to the warranty, if any,
of their manufacturer. Grace will provide purchaser with reasonable assistance in making any claim for breach of these
warranties.

Factory Branches: Atlanta, Chicago, Dallas, Detroit, Los Angeles, West Caldwell (N.J.)
Subsidiary and Affiliate Companies: Canada; England; Switzerland; France; Germany; Hong Kong; Japan
GRACO INC. p.0. BOX 1441 MINNEAPOLIS, MN 55440-1441
PRINTED IN U.S.A. 307-714 l-86 Revised 4-89