LINCOLN Model Nos.

81713, 81713A,
®
81770-1, 2, 3, 4, 5
APENTAIR COMPANY
SL-I INJECTOR
Series “H”
SINGLE AND MANIFOLD TYPE
For Dispensing Fluid Lubricant and Grease
Not to Exceed N.L.G.I. #1 Grade
SERVICE PARTS
Item No. Description Qty. Part No.
SPECIFICATIONS
Minimum operating pressure -1,850 PSI. 1 Adjusting screw 1 11623
Maximum operating pressure -3,500 PSI. 2 Lock nut 1 11624
Recommended operating pressure -2,500 PSI. 3 Piston stop plug 1 11450
Maximum vent (Recharge) pressure -600 PSI. 4 Gasket 2 *
Lubricant output is adjustable from .008 cu. in. to .08 cu. in. 5 Washer 1 *
Injectors can be mounted in any position and can be used 6 Viton o-ring 1
in circuits with SL-32 and/or SL-33 Injectors. 7 Injector body assembly 1 241427
8 Piston assembly 1 *
9 Fitting assembly 1 90471
10 Plunger spring 1 *
11 Spring seat 1 *
12 Plunger 1 *
13 Viton packing 1 *
14 Inlet disc 1 *
15 Viton packing 1 l
16 Washer 1
17 Gasket 1 31064
18 Adapter bolt 1 11961
19 Adapter 1 13216
20 Viton packing 1 *

* Included in 250158 Repair Kit.

MANIFOLD TYPE INJECTORS

Model Type Dim. A Dim. B Manifold

81770-1 Single injector manifold ** 2-1/2” 12658

81770-2 Two injector manifold ** 3" 11962
81770-3 Three injector manifold 1-1/4 4-1/4” 11963
81770-4 Four injector manifold 2-1/2” 5-1/2” 11964
MODEL 81713 81770-5 Five injector manifold 3-3/4” 6-314” 11965
SINGLE UNIT INJECTOR
** Single mounting hole.

NOTE:
250158 Repair Kit available
for Models 81713 & 81713A

LINCOLN One Lincoln Way Copyright 1992 Section - C8

St Louis MO 63120-1578 Printed in U.S.A.
® A PENTAIR COMPANY (314) 679-4200 Page - 8H

MAY-92 FORM 402383

 STAGE 1 STAGE 2

OPERATION

STAGE 1

The injector piston is in its normal or rest

position. The discharge chamber is filled
with lubricant from the previous cycle.
Under the pressure of incoming lubricant,
the slide valve is about to open the passage
leading to the measuring chamber above
the injector piston.

STAGE 2

When the slide valve uncovers the passage,

lubricant is admitted to the measuring
chamber above the injector piston which
forces lubricant from the discharge chamber
through the outlet port to bearing,

STAGE 3 STAGE 4
STAGE 3

As the injector piston completes its stroke,

it pushes the slide valve past the passage,
cutting off further admission of lubricant to
the passage and measuring chamber. The
injector piston and slide valve remain in this
position until lubricant pressure in the
supply line is vented (relieved at the pump).

STAGE 4

After venting, the injector spring expands,

causing the slide valve to move, so that the
passage and discharge chamber are con-
nected by a valve port. Further expansion of
the spring causes the piston to move up-
ward, forcing the lubricant in the measuring
chamber through the passage and valve
port to refill the discharge chamber.

Injector is now ready for next cycle.

RETAIN THIS INFORMATION FOR FUTURE REFERENCE

When ordering replacement parts, list: Part Number, Description, Model Number, and Series Letter.

LINCOLN provides a Distributor Network that stocks equipment and replacement parts.