Bishamon BM40M Operation manual

Hand Pallet Truck
Operation and Service Manual
Thank you for purchasing the Bishamon Hand Pallet Truck. Please read this manual carefully and make
sure 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 the
product come off.
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.
W
arning
Caution
1. Read this manual completely before using and make sure you understand all
instructions.
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 the
fork, etc. The unit or its components
may be damaged.
11. Do not lift objects using only the
edges or one side of the fork. The
unit or its components may be
damaged.
※ 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 deterioration
of the packing, so please exercise caution. (Damage resulting from improper use is
not covered by the warranty)
Do not place arms or
legs beneath loads or
lifts.
Do not use on slopes.
Keep feet clear of
rolling wheels when in
motion.
Do not ride on the
truck. The unit may
overturn.
Make sure no
personnel are in the
area when unit is in
use.
Be careful when
moving the unit on
multi-level surfaces.
GETTING STARTED
Safety Definitions
Warnings and Cautions
Names of Components
Handle
Handle
Control Lever
Control Lever
Hydraulic Unit
Hook for lifting
Hook for lifting
Φ
8
0 Bogie Wheel
Φ
8
0 Bogie Wheel
Hydraulic Unit
Support
Wheel
Fork
Fork
Steering Wheel Steering Wheel
Support
Wheel
Parking Brake
With Foot Guard
Parking Brake
With Foot Guard
Rev.1 20.09

Inspections are essential for operating the unit safely and discovering problems early. Inspect the following items
before operating the unit.
Caution
If 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?
1. Raising the Forks
Caution
Do not exceed the maximum capacity.
Maximum capacity BM40 4000 kg
BM50 5000 kg
① Place the fork under the load.
② Make sure the control lever is in the Raise
position.
③ Raising and lowering the handle will raise the fork.
Repeat until the fork reaches the desired height.
Caution
 Do not load the forks in an unbalanced manner.
Doing so may damage the unit.
 When using double-sided or plastic pallets, make
sure the fork wheels do not come into contact with
the pallet frame. Doing so may damage the unit.
2. Maneuvering the Truck
Warning
Do not use on slopes.
You may not be able to stop the unit from moving.
① Raise the control lever slightly and make contact
with the handle. This will make handling easier.
② Grab the handle and move.
Caution
Do not use the lifting fork to pull objects.
3. Lowering the Forks
Warning
Do 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.
Explanation
The hydraulic cylinder supports the fork. The
hydraulic unit properties cause the fork to be
lowered very gradually. Please be aware that the
fork cannot be supported for long periods of time.
Pre
-
operation Inspection
Operating Instructions
Lower
Neutral
Raise
“Raise” lever position
Handle Diagram
“Maneuver”
lever position
Lower
Raise
Neutral
Handle Diagram
Lower
Raise
Neutral
“Lower” lever
position
Handle
Diagram

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 in
motion. 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.
5. Support Wheel
Caution
The 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.
Braking Releasing Brake
Brake Pedal
(Red Color)
Wheel Cover
Release Pedal
(
Gray
Color)
Foot Guard
Brake Angle
Pushing down Brake Pedal (Red Color)
locks the wheel
Pushing down Release Pedal (Gray
Color) unlock the brake and enable
maneuvering
Brake Pedal and Release Pedal become
even height level
Release Pedal height level is lower than
Brake Pedal
・Make sure pallet truck does not move after pushing down Brake Pedal.
・Wheel Cover is consumption parts and will not be covered under warranty.
C
aution
C
aution

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, brake
functions too strong.
● 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, and
at 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 can
become narrower by reducing Flat Washer.
※ Flatwasher removed from A section can be kept at B section for future use and loss prevention.
● Procedure
How to Make Adjustments
Wheel
Brake Angle
Brake Angle
Flat Washer (1.5mmX1ea.
Flat Washer (0.5mmX3ea.
Hex Socket Head Bolt.
Flat Washer (1.5mmX1ea.
Procedure ①
Procedure ②
Procedure ③
Prepare Hex Wrench (6mm)
Move pallet truck to flat and stable
floor
＜Caution＞
Pallet truck can be movable
during servicing work.
Brake Angle
Bolt
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, and
dismantle Brake Angle
Assy
Be careful not to lose
Flat Washer when
dismantling.
Procedure ④
Install Brake Angle back after adjusting Flat Washer
Adjust brake by using same size and
same qty Flat Washer at both Right and
Left side
. Grab Bolt head at both sides by
fingers and mantle Brake Angle back to
pallet truck. And then fasten tight by Hex
Wrench.
(Be careful not to lose Flat Washer).
Check braking function after installation.
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 to
pallet truck, keeping Flat Washer side inclined and
towards 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 Turn about 45° to the right
To decrease the lowering speed Turn about 45° to the left
⑤ Tighten the lock nut.
⑥ Try lowering with a test load to check the lowering speed.
Caution
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.
Lock nut
Lowering adjustment dial

Model
Maximum
Capacity
A1 B1 D1 D2 A2 B2 B3 B4 Dead load
kg Outer Width
mm
Length
mm
Lowest
Position mm
Highest
Position mm
Inner Width
mm
Length mm Length mm Length mm Approx.
kg
BM40M
4000
520
1070
82.5
202.5
214
992
759
410
155
MB40LL
4000
685
1220
82.5
202.5
379
1139
906
414
175
BM40L5
4000
685
1600
82.5
202.5
379
1519
1284
414
220
BM50L4
5000
685
1500
85
205
285
1432
1197
416
260
BM50L6
5000
685
1800
85
205
285
1732
1496
416
300
BM50L7
5000
685
2000
85
205
285
1932
1695
416
320
● Lifting Circuit
Pumping of the handle sends
hydraulic oil from the oil tank to the
cylinder, allowing lifting to occur.
The cone prevents oil back flow,
and prevented by a cone.
● Lowering Circuit
Operating the lowering level
pushes the cone, causing the
hydraulic oil to flow from the
cylinder into the oil tank and
allowing lowering to occur.
Problem Cause Action Store
Servicing
Will not lift
Insufficient hydraulic oil Replenish hydraulic oil supply
Pressure pin stuck Overhaul or exchange pressure pin 〇
Valve spring damaged Replace valve spring 〇
Faulty steel ball sheet Remove foreign material 〇
If cylinder base is damaged 〇
Too much pumping
required U packing deterioration Replace U packing 〇
Raises light loads but
not heavy loads
Rough steel ball sheet surface Seating surface punching 〇
Damaged steel ball Replace copper ball 〇
Lifts when pumping,
but lowers when
turning handle
Foreign material caught between cone
and cone sheet Remove foreign material 〇
Damaged valve spring Replace valve spring 〇
Lowers on its own
(Natural Lowering)
U packing deterioration Replace U packing 〇
Faulty seal between cone and cone
sheet Seating surface punching or replace 〇
Faulty O ring seal in cone sheet Replace O ring 〇
Will not lower
Pressure pin stuck Overhaul or exchange pressure pin 〇
Faulty adjustment of lowering pedal
section Adjust lowering adjustment dial
*Some repairs require a very high level of expertise, so be sure to contact your dealer in those cases.
Unit Specifications and Dimensions
● Minimum rotation radius =overall length－ 105mm
Cylinder
Oil tank
Pump cylinder
Cylinder
Oil tank
Pressure pin
Cone (lowering valve)
Steel ball
Lower pedal part
Release spring
Relief presser
Relief plunger
Pump cylinder
Troubleshooting

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 with
high levels of moisture or dust, the bushing may deteriorate more quickly than usual, so be sure to lubricate the
shafts 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.
① Lubrication of bearings (every six months)
② Replacing hydraulic oil (every 12 months)
Hydraulic oil types Viscosity class ISO VG32 anti-wear hydraulic oil (Amount: 0.5 liters)
Idemitsu Super Hydronic Fluid 32
Esso Nuto H32, HP32, Unipower SQ32, XL32
Showa Shell Tellus Oil 32, K32
JX Nippon Oil & Gas Super Highland 32
Mobil Mobil DTE Oil 24
*Grease Fittings Position
Maintenance
BM40 2 locations
BM50 10 locations
⑦
⑧
⑨
⑩

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.
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 the
case 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 external
factors.
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.
Product does not work properly Review the manual and try to find a solution.
Product still does not work properly Contact your dealer and request repairs.
Repairs within the warranty period The warranty is valid one year from the date of purchase. We will service your
product 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
holding period
Performance repair components for this product will be held for a minimum of eight
years after manufacturing discontinues.
(Performance components are components necessary for maintaining the
performance 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. No.
Purchase Date (Month/Day/Year)
Name of Purchasing Company Company Name: Contact:
Address: TEL:
Malfunction Date/Details (Month/Day/Year) Issue:
(Month/Day/Year) Issue:
(Month/Day/Year) Issue:
Disposal
Product Guarantee
Conditions
After Sales Service