HYDRAULIC STACKER – Model No.
MN397
Operating Instructions and Parts List
Note: Do not use the platform stacker before reading and understanding these
operation instructions.
Thank you for using platform stacker. Your stacker is made of high quality steel and is designed for the
horizontal lifting and transport of loads on a pallet or standardized containers on a level, fixed base. For
your safety and correct operation, please carefully read this instruction before using it.
1. GENERAL SPECIFICATIONS
Caster Front roller
Type Capacity Size of Min. / Max. fork N. W.
Dia. (mm) Dia. (mm)
(Kg) platform(mm) height (mm) (Kg)
(PU) (PU)
MN397 400 650X576 85-1500 Φ127x40 Φ75x40 91
2. INTENDED USE
The hydraulic stacker, with forks/platform for independent lifting of loads, is intended for both manual
lifting / lowering and the manual transporting of loads. Its use requires a level and firm floor/ground
surface.
The hydraulic stacker, with forks/platform for independent lifting of loads, is intended for on-site
transporting of unit loads, e.g. in warehouses associated with industry and delivery companies etc., for
short range transporting of standard and wire mesh pallets as well as other palletised loads.
It is not suitable for use in potentially explosive locations.
Alterations to the hydraulic stacker and the addition of auxiliary units are only permitted with our express
written approval.
Ensure that you take note of the technical data and details on functional characteristics!
3. Safety instructions
Operation, assembly and maintenance only by: Instructed, qualified operators
(Definition of qualified operators in accordance with IEC 364)
Qualified operators are persons who, on the basis of their training, experience, instruction and
knowledge of the relevant standards and regulations, regulations for prevention of accidents and
operating conditions, are authorised by the persons responsible for the safety of the plant to carry out the
respective required tasks whilst being able to recognise and prevent potential associated dangers.
– Operation is only permitted on a level and firm floor/ground surface.
– Transporting of persons and a presence within the danger zone is not permitted.
– A presence under a raised load is not permitted.
– The specified load capacity must not be exceeded.
– The loaded material must be distributed evenly on the fork/platform.
– The hydraulic stacker must never be loaded whilst the fork/platform is in a raised position.
– The stacker is not made for or capable of off-loading like a fork lift truck or crane.
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– Never leave the load unattended in a raised position.
– Never reach into moving parts.
– Defects are to be dealt with competently as soon as they become apparent.
– Only use genuine spare parts.
Inspections
In accordance with Section 37 of the BGV D27 the hydraulic stacker must be inspected by a
competent technical expert at least once per year, and otherwise as required.
We recommend that you record the results of the inspections in an inspection book.
4. Operating instructions
Functional description
The fork/platform stacker is a manually-operated hydraulic device.
Handling
Before taking into operation, check:
perfect function of the operating elements
function of the parking brake
state of the travelling rollers and roller axles
load chains for adjustment, chain tension and wear
Parking brake
One or two steering wheel of the hydraulic stacker is equipped with a parking brake.
For depositing, actuate the parking brake.
Picking up a load
Check that the load does not exceed the loading capacity of the hydraulic stacker.
Roll the hydraulic stacker slowly up to the pallet/load. Roll the fork prongs under the pallet until the back end
of
the fork rests against the load (pallet). Lift the load by executing the pumping movements.
The load must be evenly distributed across both prongs of the fork / platform.
The load centre of gravity must not be exceeded.
Moving with the load
As only a parking brake is provided, the hydraulic stacker must not be operated uphill and on
gradients.
Travel with the load in lowest possible position in consideration of the floor clearance under the load.
The load should be moved with lifted fork / platform only for stacking and depositing on even
surface.
Travel with steady speed adapted to the load and the floor conditions. For depositing, actuate the parking
brake.
Setting the load down
Stop just before the stacking area and lift the load in safe distance over the pile.
Manoeuvre the load directly above the pile.
Lower the load until platform is discharged.
Lower the load by turning the release valve.
Ensure safe reversing, move away and lower the platform.
5. MAINTENANCE
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5.1 OIL
Please check the oil level every six months. The oil can be hydraulic oil: ISO VG32, its viscosity should
be 30cSt at 400 C, total volume is about 2.0lt.
5.2 TO BANISH THE AIR
The air may come into the hydraulic oil because of transportation or pump in upset position. It can cause
that the forks do not elevate while pumping in the RAISE position. The air can be removed in the
following way: let the control handle (FP216) on the LOWER position, then move the pedal (FP242) up
and down for several times.
5.3 DAILY CHECK AND MAINTENANCE
Daily check of the stacker can limit wear as much as possible. Special attention should be paid to the
wheels, the axles, as thread, rags, etc. It may block the wheels. The forks should be unloaded and
lowered in the lowest position when the job is over.
5.4 LUBRICATION
All bearings and shafts are provided with long-life grease at the factory. You only need provide with
long-life grease at monthly intervals or after each time the truck is cleaned thoroughly to the lubrication
points.
5.5. Inspection and maintenance instructions
Safety warning: Before inspection and maintenance work is carried out, appropriate measures
should be taken to remove all loads from the platform stacker.
Maintenance and inspection work Inspection intervals
Check operating elements for faultless operation.
Check condition of the travelling rollers and roller axles Daily or each time
Check the firmness of the supply and the tension of the chain before use
Check the chain, if necessary grease
Grease joints and bearings
monthly
Check functioning of wheels and rollers
Check the level of the hydraulic oil with forks completely lowered and the stacker
in horizontal position.
Check hydraulic system for leakage (Is the top lifting height reached effortlessly?)
Check the adjusting of the lifting chain and of the movement chain, if necessary
adjust, clean and grease Every 3 months
Check the set-up of the control lever
Check all screw and bolt connections for tightness
Grease joints and bearings
Check functioning and turning capability of wheels and rollers
Check all parts of the hydraulic stacker for wear and replace defective parts where
necessary
Change oil in the hydraulic system (suck the oil out of the tank, refill with new oil)
-Ventilate the hydraulic system- Annually
Check readability of type plate.
Authorize inspection by competent technical expert
The service life of your hydraulic stacker is limited. Worn parts must be renewed in good
time.
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6. TROUBLES SHOOTING
No Trouble Cause Fixing Methods
1 The forks can -The hydraulic oil is not enough. -Pour in the oil.
not be lifted up
the maximum
height.
- Without hydraulic oil. - Fill in the oil.
The forks can - The oil has impurities. - Change the oil.
2 not be lifted up. -The handle (FP216) is on the wrong - Turn the handle (FP216) on the right
position, keep the lowering valve position.
open. - Banish the air.(see item 6.2)
- Air comes into the hydraulic oil.
- The piston rod (FP245 or PS245) or - Replace the piston rod or pump.
pump (FP222 or PS222) is deformed
resulting from partial loading slanting
to one side or over-loading.
3 The platform can - The platform was kept in the high - Keeping the fork in the lowest
not be lowered. position for long time with piston rod position if not using, and pay more
bared to arise in rusting and jamming attention to lubricate the rod.
of the rod.
- The screw (FP215) is loose. - Tighten the screw (FP215)
4 Leaks - Sealing parts worn or damaged. - Replace with the new one.
- Some part cracked or worn into small. - Replace with the new one.
- The impurities in the oil cause the - Replace with new oil.
release valve to be unable to close
tight.
5 The forks - Some parts of hydraulic system is - Inspect and replace the waste parts.
lowered without cracked or bored.
the release valve - Air come into the oil. - Banish the air. (See item 6.2)
working. - Sealing parts worn or damaged. - Replace with the new one.
- The handle (FP216) is on the wrong - Turn the handle (FP216) on the right
position, keep the lowering valve position.
open.
NOTE:
1) DO NOT ATTEMP TO REPAIR THE PALLET TRUCK UNLESS YOU ARE TRAINED AND
AUTHORIZED TO DO SO.
2) After placing out of service, the hydraulic stacker parts must be disposed of or recycled
in accordance with legal provisions.
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No. Description Qty. No. Description Qty.
PS101# Fork Carriage 1 FP115 Elastic Washer 2
FP102 Bolt 2 FP116 Washer 4
FP103 Nut 6 FP117 Elastic Washer 4
FP104 Nut 2 PS103 Mast 1
FP105 Roller 4 PS104 Caster 2
FP106 Bushing 4 FP130 Locking ring 4
FP107 Washer 4 PS105 Axle for roller 2
FP108 Bolt 4 PS106 Washer 4
PS102-0485 PS107 Bearing 4
PS102-0412 Handle 1 PS108 Roller 2
PS102-0415 PS109 Platform 1
FP110 Bolt 2
FP111 Washer 2
FP112 Nut 2
FP113 Bolt 4
FP114 Nut 2
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No. Description Qty. No. Description Qty.
FP201 Pump Piston Rod 1 FP233 Pressure Roller 1
FP202 Spring Cap 1 FP234 Bushing 1
FP203 Spring 1 FP235 Shaft 1
FP204 O-Ring 2 FP236 Nut 1
FP205 Washer 1 FP237 Elastic Washer 1
FP206 Oil-holder 2 FP238 Steel Ball 1
FP207 Shaft 1 FP239 Nut 1
FP208 Steel Ball 3 FP240 Bolt 1
FP209 O-Ring 2 FP241 Locking Ring 1
FP210 Bolt 4 FP242 Footplate 1
FP211 Sleeve 1 FP243 Seat 1
FP212 Shaft 1 FP244 Sleeve 1
FP213 Spring 1 PS245-0485
FP214 Sleeve 1 PS245-0412 Lifting Piston Rod 1
FP215 Bolt 1 PS245-0415
FP216 Control Handle 1 FP246 Linking Chain 2
FP217 Dust Ring 1 PS247-0485
FP218 O-Ring 2 PS247-0485 Chain 1
FP219 Washer 1 PS247-0485
FP220 Seal Washer 1 FP248 Cover 1
FP221 Bolt 1 FP249 Bolt 1
PS222-0485 FP250 Cap 1
PS222-0412 Body of Pump 1 FP251 Shaft 1
PS222-0415 FP252 Locking Ring 2
FP223 Valve Spindle of Pump 1 FP253 Chain gear 1
FP224 Spring 2 FP254 Bushing 2
FP225 Pin 1 FP255 Bracket 1
FP226 Adjust Screw 2 FP256 Screw 1
FP227 O-Ring 1 FP257 Seal washer 1
FP228 Bolt 1 FP258 Sleeve 1
FP229 Screw 2 FP259 Screw 1
FP230 Seal Washer 2 FP260 Seat of valve 1
FP231 Spring 2 FP261 O - ring 1
FP232 Locking Ring 2
