Hand Pallet Truck
Operation and Service Manual
Rev.1 20.09
GETTING STARTED
Thank you for purchasing the Bishamon Hand Pallet Truck. Please read this manual carefully and makesure you understand its contents before using the product. Be sure to keep this manual in a safe place. If
it is lost, contact your dealer immediately. Also contact your dealer should any of the warning labels on theproduct come off.
Safety Definitions

In this manual, Bishamon uses “Warning” to identify unsafe practices that can result in severe injury, and“Caution” to identify unsafe practices that can result in minor or moderate injury and property damage.

Warnings and Cautions

Warning

Caution

Do not place arms orlegs beneath loads orlifts.

Do not use on slopes.

Keep feet clear of
rolling wheels when inmotion.

Do not ride on thetruck. The unit may
overturn.

1. Read this manual completely before using and make sure you understand allinstructions.
2. Do not exceed the maximum capacity.
3. Do not lower the forks rapidly. Do not stop suddenly. Sudden movements result in
unbalanced loads that can result in property or unit damage.
4. Do not load the unit on only one side of the fork or on the edges.
5. Do not modify the truck.
6. Be sure to inspect the unit according to the instructions in this manual.
7. As the unit is not water-resistant, use in a dry location.
8. Do not use on uneven surfaces when the unit is loaded.
9. Use in an environment with a temperature between 0℃ and 40℃.

10. Do not cause strong impacts with thefork, etc. The unit or its components
may be damaged.

11. Do not lift objects using only theedges or one side of the fork. Theunit or its components may bedamaged.

※ If the above instructions are not followed, this may result in bending of the torsion
tube or push rod, rusting, or damage to the unit or its components due to deteriorationof the packing, so please exercise caution. (Damage resulting from improper use is
not covered by the warranty)
Make sure nopersonnel are in thearea when unit is inuse.

Be careful whenmoving the unit on
multi-level surfaces.

Names of Components
Control LeverControl Lever
Hydraulic UnitHandle

HandleHook for lifting
Hook for lifting

Hydraulic Unit

Φ80 Bogie Wheel

Φ80 Bogie Wheel
Fork

SupportWheel
Parking Brake
With Foot Guard

Fork

SupportWheel
Parking Brake
With Foot Guard

Steering Wheel

Steering Wheel

Pre-operation Inspection
Inspections are essential for operating the unit safely and discovering problems early. Inspect the following items
before operating the unit.
CautionIf a suspected defect is discovered, do not operate the lift until it has been safely addressed. Continuing to operate
the lift may result in damage or accidents.
Check for the following every day prior to operation:
1. Are there any visible signs of damage, bending, or scratching?
2. Is there any oil leaking from the hydraulic unit?
3. Does the fork lower naturally after being raised?
4. Do the wheels move smoothly?

Operating Instructions
1. Raising the Forks

2. Maneuvering the Truck

Caution
Do not exceed the maximum capacity.
Maximum capacity BM40 4000 kg
BM50 5000 kg

Warning
Do not use on slopes.
You may not be able to stop the unit from moving.
①①②

Place the fork under the load.
Make sure the control lever is in the Raise
position.

②

Raise the control lever slightly and make contact
with the handle. This will make handling easier.
Grab the handle and move.
Lower“Maneuver”
lever position

Lower“Raise” lever position

NeutralRaise

Handle Diagram
NeutralRaise

Handle Diagram③Raising and lowering the handle will raise the fork.
Repeat until the fork reaches the desired height.

Caution
Do not use the lifting fork to pull objects.

3. Lowering the Forks

Caution Do not load the forks in an unbalanced manner.
Doing so may damage the unit.
 When using double-sided or plastic pallets, makesure the fork wheels do not come into contact withthe pallet frame. Doing so may damage the unit.

WarningDo not place your feet beneath the loads or fork.
They may get caught, resulting in injury.
Carefully pull the control lever to lower the fork. Make
sure to lower at a safe speed.
Lower“Lower” lever
position
NeutralRaise

Handle Diagram

Explanation
The hydraulic cylinder supports the fork. The
hydraulic unit properties cause the fork to belowered very gradually. Please be aware that thefork cannot be supported for long periods of time.

4. Parking Brake
The parking brake is used to park the hand pallet truck on a flat surface. And Foot Guard protect foot from wheels
during moving for safe working condition.
Warning
Do not use the parking brake to park the hand pallet truck on slopes or to slow it down or stop it while it is inmotion. It may not function properly and may result in injury.
① Move the hand pallet truck to a flat, stable surface before parking it.
② Step on the Brake Pedal (Red color) and push it down to lock the wheels.
③ Step on the Release Pedal (Gray color) to unlock the brake and enable maneuvering.

BrakingPushing down Brake Pedal (Red Color)
locks the wheel

Releasing Brake
Pushing down Release Pedal (GrayColor) unlock the brake and enable
maneuvering

Brake Pedal(Red Color)

Wheel CoverBrake Pedal and Release Pedal become
even height level

Release Pedal height level is lower thanBrake Pedal

Release Pedal(Gray Color)
Brake Angle

Foot Guard

Caution・Make sure pallet truck does not move after pushing down Brake Pedal.
・Wheel Cover is consumption parts and will not be covered under warranty.

5. Support Wheel
CautionCautionThe support wheel is designed to prevent overturning while the unit is in motion, so make sure not to apply loads
to the support wheel. Doing so may result in damage to the unit or accidents.

How to Make Adjustments
1. Adjusting the Parking Brake
Repeated use may result in poor brake function due to the wear of the wheels. If this occurs, follow the steps below
to make adjustments. When replacing wheels, adjustment may be required also.
● Conditions that require Adjustment
・Pallet truck can move when pushing or pulling with Parking Brake locked → Brake is not working effectively
・Pallet truck makes friction rubbing noise in moving though Parking Brake is released→ Parking Brake is working too much (strong)・Braking operation is heavy → Parking Brake is working too much (strong)● How to Check brake adjustment conditions
Check the gap between brake angle and wheel with brake released. (See below left illustration)
Standard gap should be 1～3mm. If the gap is wider, brake functions weak, and if the gap is narrower, brakefunctions too strong.
Flat Washer (1.5mmX1ea.
Flat Washer (0.5mmX3ea.

Wheel

Flat Washer (1.5mmX1ea.

Brake Angle
Hex Socket Head Bolt.

Brake Angle● How to Adjust brake
Brake can be adjusted by the Flat Washer installed at both Right and Left side of Brake Angle. As per above,at A section, 1ea. Flat Washer (1.5mm thickness) and 3ea. Flat Washer (0.5mm thickness) are installed, andat B section, 1ea. Flat Washer (1.5mm thickness) are installed at factory.
The gap between Wheel and Brake Angle can become wider by adding Flat Washer at A section, and canbecome narrower by reducing Flat Washer.
※ Flatwasher removed from A section can be kept at B section for future use and loss prevention.
● Procedure
Procedure ①

Procedure ②
Move pallet truck to flat and stable
floor

Prepare Hex Wrench (6mm)＜Caution＞
Pallet truck can be movable
during servicing work.

Procedure ③
Unfasten Bolt of Right and Left side at Brake Angle
counter-clockwise by Hex Wrench for about 2
rotation.
Unfasten both Bolts
together by hands, anddismantle Brake Angle
Assy
Be careful not to lose
Flat Washer whendismantling.

Procedure ④
Install Brake Angle back after adjusting Flat Washer
Adjust brake by using same size andsame qty Flat Washer at both Right andLeft side. Grab Bolt head at both sides byfingers and mantle Brake Angle back topallet truck. And then fasten tight by HexWrench.
(Be careful not to lose Flat Washer).

Check braking function after installation.

Brake Angle

Bolt

One Point Hint
・Keep the brake in locked conditions make Release
Pedal in Up position and makes servicing work easier.
・When dismantling Brake Angle and mantling back topallet truck, keeping Flat Washer side inclined andtowards Upper makes servicing work easier.

2. Adjusting the Lowering Speed
You can adjust the lowering speed by using the lowering adjustment dial.
Follow the procedure below to adjust the lowering speed.
① Remove all loads from the hand pallet truck.
② Lower the hand pallet truck to its lowest position.
③ Loosen the lock nut.
④ Turn the lowering adjustment dial.
<Guidelines>

To increase the lowering speed
To decrease the lowering speed

Lowering adjustment dial

Turn about 45° to the right
Turn about 45° to the left

⑤ Tighten the lock nut.
⑥ Try lowering with a test load to check the lowering speed.

Lock nutCaution
Turning the lowering adjustment dial disables the neutral function.
To use the neutral function, return the lowering adjustment dial to its original position.
Also, be aware that turning it too much may prevent the unit from raising/lowering correctly.

Unit Specifications and Dimensions
ModelMaximum
Capacitykg

BM40M
MB40LL
BM40L5
BM50L4
BM50L6
BM50L7

4000
4000
4000
5000
5000
5000

A1

B1

D1

D2

A2

Outer Widthmm
520
685
685
685
685
685

Lengthmm
1070
1220
1600
1500
1800
2000

LowestPosition mm
82.5
82.5
82.5
858585HighestPosition mm202.5
202.5
202.5
205
205
205

Inner Widthmm
214379
379
285
285
285

B2

B3

B4

Dead load

Length mm

Length mm

Length mm

992
1139
1519
1432
1732
1932

759
906
1284
1197
1496
1695

410
414
414
416
416
416

Approx.
kg
155
175
220
260
300
320

● Lifting Circuit● Lowering Circuit

Pumping of the handle sends
hydraulic oil from the oil tank to thecylinder, allowing lifting to occur.
The cone prevents oil back flow,
and prevented by a cone.

Operating the lowering level
pushes the cone, causing thehydraulic oil to flow from thecylinder into the oil tank andallowing lowering to occur.

CylinderCylinder

Oil tank

Oil tank● Minimum rotation radius =overall length－ 105mm

Pressure pinLower pedal partCone (lowering valve)

Pump cylinder

Steel ball

Release spring
Pump cylinder

Relief presser

Relief plunger

Troubleshooting
ProblemWill not lift

Cause
Insufficient hydraulic oil
Pressure pin stuck
Valve spring damaged

Lowers on its own(Natural Lowering)Will not lowerStore
Servicing

Replenish hydraulic oil supply
Overhaul or exchange pressure pin
Replace valve spring
Remove foreign material
If cylinder base is damaged

〇
〇
〇
〇

U packing deterioration

Replace U packing〇

Rough steel ball sheet surface
Damaged steel ballForeign material caught between coneand cone sheet
Damaged valve spring
U packing deterioration
Faulty seal between cone and conesheet
Faulty O ring seal in cone sheet
Pressure pin stuck
Faulty adjustment of lowering pedal
sectionSeating surface punching
Replace copper ball〇〇Remove foreign material〇

Replace valve spring
Replace U packing〇〇

Seating surface punching or replace〇

Replace O ring
Overhaul or exchange pressure pin〇〇

Faulty steel ball sheet
Too much pumping
requiredRaises light loads but
not heavy loads
Lifts when pumping,but lowers whenturning handle

ActionAdjust lowering adjustment dial

*Some repairs require a very high level of expertise, so be sure to contact your dealer in those cases.

Maintenance
1. Supplying Oil to Bearing Section
In general, the shafts use oilless bushing, so lubrication is not necessary, but it is necessary to periodically add
grease to the grease fittings to maintain smooth operation of the hand pallet truck. If using in an environment withhigh levels of moisture or dust, the bushing may deteriorate more quickly than usual, so be sure to lubricate theshafts to prevent rusting and foreign material from entering.
Caution The bushing will eventually need to be replaced, so be sure to check it periodically.
Using the unit without a bushing can result in a serious accident.
 Some repairs require a very high level of expertise, so be sure to contact your dealer in those cases.

Be sure to perform routine maintenance to allow for safe operation.
①②

Lubrication of bearings (every six months)
Replacing hydraulic oil (every 12 months)
Hydraulic oil types

Viscosity class ISO VG32 anti-wear hydraulic oil (Amount: 0.5 liters)

Idemitsu
EssoShowa Shell
JX Nippon Oil & Gas
Mobil

Super Hydronic Fluid 32
Nuto H32, HP32, Unipower SQ32, XL32
Tellus Oil 32, K32
Super Highland 32
Mobil DTE Oil 24*Grease Fittings Position

BM40 2 locations⑦⑧⑨⑩BM50 10 locations

Disposal
When disposing of this product, dispose of the metal, non-metal, plastic, and hydraulic oil components separately.
There are regulations for disposing of the hydraulic oil, so be sure to abide by them.
If you have any questions regarding disposal, please confirm with the dealer before proceeding.

Product Guarantee Conditions
Warranty
Should the unit malfunction within the warranty period (within one (1) year of purchase) when it has been
operated in accordance with the user manual and the warning labels on the unit, we will adjust the defective
component, repair it, replace it, or send a replacement part free of charge. However, this does not apply in thecase of secondary damage or any damage to which any of the following apply:
1. Damage or injury resulting from incorrect operation, improper inspection, improper storage, or any
other type of negligence.
2. Damage or injuries resulting from changes (modifications) that negatively impact the product’s
operation mechanism.
3. Consumable parts that are damaged and need to be replaced.
4. Damage or injury resulting from fires, earthquakes, wind, floods, or other natural disasters or externalfactors.
5. Problems resulting from specified parts not being used.
6. Error in the warranty claim process (Ex: failure to indicate model or Serial No., etc.).
7. Damage or injury resulting from installation.
Furthermore, all rubber components and other naturally degradable products used in this product and its
accessories, as well as all consumable products, fall outside the scope of this warranty.
How to File a Claim
If you decide to file a claim for this product based on the above, please contact your dealer.
The dealer will carry out the necessary procedures.
In addition, we cannot decide whether or not any particular situation falls within the scope of this warranty.

After Sales ServiceProduct does not work properly
Product still does not work properly
Repairs within the warranty period

Review the manual and try to find a solution.
Contact your dealer and request repairs.
The warranty is valid one year from the date of purchase. We will service yourproduct in accordance with the product guarantee conditions.
Repairs outside the warranty period
Please consult with your dealer.
If repairs are deemed sufficient to solve the issue, you can request repairs for a fee.
Performance repair component
Performance repair components for this product will be held for a minimum of eight
holding period
years after manufacturing discontinues.
(Performance components are components necessary for maintaining theperformance of the product)
For details about after sales service, or if you have any other questions, please inquire with your dealer.
When making an inquiry, please have the following information handy: model, Serial number, purchase date, malfunction
details (be as detailed as possible)

Fill out the fields below with the above information to make inquiries proceed more smoothly.
Model
Serial No.
Purchase Date
Name of Purchasing Company
Malfunction Date/Details

No.
(Month/Day/Year)
Company Name:
Address:(Month/Day/Year)(Month/Day/Year)(Month/Day/Year)

Contact:
TEL:
Issue:
Issue:
Issue: