UniCarriers FG20 Series Manual

No. OMFBE-CK9140
FORKLIFT TRUCK
It is the responsibility of the operator and supervisor to read and understand this
manual.
Protect the earth and be kind to your lift truck.
OPER. & MAINT. MANUAL No. OMFBE-CK9140
OPERATION &
MAINTENANCE MANUAL
FG20 - FD30
FG20 - FG30
FD20 - FD30

Thank you very much for your purchase of UniCarriers’ product.
This original Operation & Maintenance Manual was written to provide the owner/
operator with information about the safe operation and maintenance of the
UniCarriers forklift truck. Read this original manual thoroughly and become
completely familiar with the lift truck before using it. If you have any questions,
see your dealer.
Due to improvements in design, it is possible that the description contained
herein may not completely apply to the truck delivered to you.
CAUTION
If the truck is to be leased, loaned or sold to anyone, this manual must
be with the truck.

Rated load Truck model Engine model
2tons FG20T3C K21
FD20T4C V2403
FD20T3CZ C240
2.5 tons
3 tons
FG25T3C K21
FD25T4C V2403
FD25T3CZ C240
FG30T3C K21
FD30T4C V2403
FD30T3CZ C240

1. SAFETY
FOR SUPERVISORS ..........................................1-2
QUALIFIED OPERATORS ..............................1-3
PLANNING AND WORKING AREA.................1-4
PROPER AND IMPROPER USES ..................1-7
TYPES OF VEHICLES AND LOADS ..............1-8
INSPECTION.................................................1-11
TRANSPORTING THE LIFT TRUCK ............1-12
TRAVELING ON PUBLIC ROADS ................1-13
MODIFICATIONS ..........................................1-14
HOW THE LIFT TRUCK WORKS? ...................1-15
TRAVELING ......................................................1-18
LOAD HANDLING .............................................1-24
PARKING...........................................................1-28
INSPECTION AND SERVICE ...........................1-30
PREVENTING VEHICLE FIRES .......................1-39
CAUTION PLATES............................................1-41
2. OPERATING CONTROLS
PICTORIAL NOMENCLATURE...........................2-2
INSTRUMENTS AND CONTROLS .....................2-3
SWITCHES......................................................2-5
METERS AND WARNING LIGHTS .................2-7
LEVERS AND PEDALS.................................2-10
TRUCK BODY ..............................................2-14
OPTIONAL EQUIPMENT ..............................2-25
3. OPERATION
PROPER OPERATION .......................................3-2
DURING BREAK-IN ........................................3-2
RELATIONSHIP BETWEEN LOAD AND
STABILITY OF TRUCK....................................3-2
BASIC LOAD CENTER AND RATED
LOAD...............................................................3-3
STABILITY OF LIFT TRUCK ...........................3-3
USING INCHING PEDAL ................................3-3
TRAVELING AND STARTING ON
A SLOPE .........................................................3-4
TRANSPORTING LIFT TRUCK ......................3-4
MOVING LIFT TRUCK
(IN AN EMERGENCY).....................................3-5
OPERATING LIFT TRUCK ..............................3-6
MEASURES AGAINST COLD OR
HOT WEATHER ................................................3-10
IN COLD WEATHER .....................................3-10
IN HOT WEATHER........................................3-11
LOAD HANDLING ...........................................3-12
PICK-UP ........................................................3-12
STACKING.....................................................3-12
UNSTACKING ...............................................3-12
STORING ..........................................................3-13
BEFORE STORING; DAILY STORAGE........3-13
LONG-TERM STORAGE;
OPERATING AFTER
LONG-TERM STORAGE...............................3-13
4. MAINTENANCE
PREOPERATIONAL CHECKS............................4-2
GENERAL RULES ON INSPECTION .............4-2
ITEMS TO BE CHECKED ...............................4-3
PREVENTIVE MAINTENANCE.........................4-18
ENGINE ROOM.............................................4-18
REPLACING TIRES AND REPAIRING
FLAT TIRE .....................................................4-26
REPLACING LAMP BULBS .........................4-28
STARTING THE ENGINE WITH
AUXILIARY BATTERY...................................4-28
ADJUSTING OPERATING FORCE OF
PARKING BRAKE LEVER.............................4-29
PERIODIC INSPECTION ..................................4-30
PERIODICAL REPLACEMENT OF
SAFETY PARTS ............................................4-30
MONTHLY (200 HOURS) CHECKS ..............4-31
3 MONTHS (600 HOURS) CHECKS.............4-37
6 MONTHS (1200 HOURS) CHECKS...........4-39
ANNUAL (2400 HOURS) CHECKS...............4-40
PREVENTIVE MAINTENANCE
SCHEDULE ..................................................4-41
CONTENTS

5. SPECIFICATIONS & SERVICE DATA
SPECIFICATIONS...............................................5-2
EQUIPMENT .......................................................5-6
LOAD CHART .....................................................5-7
SERVICE DATA...................................................5-8
SERVICE DATA...............................................5-8
BOLT AND NUT TORQUE...............................5-9
AFTER-THE-SALE SERVICE ...........................5-13
TRUCK SERIAL NUMBER ............................5-13
SERIAL NUMBERS OF MAJOR
COMPONENTS.............................................5-13
NAME PLATE ................................................5-13
ENGINE SERIAL NUMBER...........................5-14
GENUINE UniCarriers PARTS ......................5-15
GENUINE UniCarriers LUBRICANTS ...........5-15
TRUCK DATA ................................................5-16
6. INDEX
CONTENTS

This is the safety alert symbol. It is used to warn the
reader about a potential source of human injury. To
prevent injury or death, make sure you understand
and follow all the safety messages following this safety
alert symbol.
Signal word
(designates the
degree of hazard)
Denition
DANGER Indicates an imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
WARNING Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury.
CAUTION Indicates a potentially hazardous
situation which, if not avoided, may
result in minor or moderate injury.
CAUTION Indicates a hazardous situation which,
if not avoided, may result in damage to
the truck or other property.
NOTE Indicates information which will help
extend the service life of the truck.
CONTENTS
FOR SUPERVISORS .......................................... 1-2
QUALIFIED OPERATORS ............................. 1-3
PLANNING AND WORKING AREA................ 1-4
PROPER AND IMPROPER USES ................. 1-7
TYPES OF VEHICLES AND LOADS ............. 1-8
INSPECTION.................................................1-11
TRANSPORTING THE LIFT TRUCK ........... 1-12
TRAVELING ON PUBLIC ROADS ............... 1-13
MODIFICATIONS ......................................... 1-14
HOW THE LIFT TRUCK WORKS? ................... 1-15
TRAVELING ...................................................... 1-18
LOAD HANDLING ............................................. 1-24
PARKING........................................................... 1-28
INSPECTION AND SERVICE ........................... 1-30
PREVENTING VEHICLE FIRES ....................... 1-39
CAUTION PLATES............................................ 1-41
1. SAFETY
1-1

Right
Left
Forward
Backward
The diagram above indicates the meanings of the
terms “forward”, “backward”, “right” and “left” used
in this manual.
FOR SUPERVISORS
Lift truck accidents cause dozens or hundreds of
deaths every year, and even greater numbers of
personal injuries.
UniCarriers has steadily improved the design and
fabrication of our lift trucks so they may be used
more safely and efciently, but many accidents still
occur due to improper use. Accidents are often
the result of more than just “bad driving”. The use
of inappropriate types of equipment, the selection
of inappropriate attachments or accessories,
inappropriate operating environments, careless
designation of operators, and failure to properly
train the operator are other common causes of
accidents.
It is not possible to describe all potentially
hazardous situations which may occur while
operating, inspecting or servicing a forklift truck.
The warnings and cautions in this manual, including
the decals attached to the forklift, are not intended
to cover all possible working hazards.
If you operate, inspect or service the forklift in a
manner not described in this manual, please be
careful because you do so at your own risk.
This chapter covers the methods of accident
prevention which are primarily the responsibility of
supervisory personnel.
Pages 1-3 through 1-14 contain instructions
•
which should be enforced by the personnel
supervising the operation of the lift truck. Please
make sure the operators also read these pages.
Page 1-15 and the following pages contain
•
specific precautions directly related to the
operation of the lift truck.
1-2
FOR SUPERVISORS

TRAIN OPERATOR TO STACK SAFELY
■
Stacking
Unstacking
“Stacking” means piling up a palleted load or
material directly on top of each other, without using
racks or shelves to separate them. If stacking work
is not done properly, the loads may slip or fall,
endangering the operator as well as fellow workers
in the area.
Safety classes should be held to train all operators
in the proper method of stacking and unstacking
loads.
(Your UniCarriers dealer can provide information
about safety stacking training.)
TIRED OR UNWELL? SEND THEM
■
HOME!
Do not let people take chances. An operator who is
overworked or fatigued, an operator who is feeling
unwell, or an operator who is intoxicated must not
be allowed in the driver’s seat.
WEAR PROTECTIVE GEAR
■
Gloves Safety
Shoes
Work
Clothes
Goggles
Hard Hat
Always wear proper work clothes for driving.
•
Work clothes should be designed to prevent any
part from accidentally catching on knobs or other
parts of the truck or equipment. For example,
shirts and trousers should have tight cuffs.
Always wear a hard hat and safety shoes.
•
Wear other protective gear as appropriate to
•
the conditions of the work site, i.e., goggles or
gloves.
PROVIDE AND MAINTAIN EMERGENCY
■
EQUIPMENT
Fire extinguishers and first aid kits should be
provided and maintained for use in case of a fire
or accident. All personnel should understand the
location and use of emergency equipment.
1-3
FOR SUPERVISORS QUALIFIED OPERATORS

KNOW WHO TO CALL IN AN
■
EMERGENCY
Contacts in emergency
....................................
....................................
.............................
...........................
Keep information on hand to allow immediate
calls for help in case of a fire, accident or other
emergency.
MAKE AN OPERATING PLAN AND
■
DISCUSS IT
Before using the lift truck, plan out the travel routes
and operating procedures, and thoroughly discuss
the details with all involved personnel.
MARK THE TRAVEL LANES
■
Designate the travel lanes for the lift truck and mark
them clearly, so they will be kept free of obstruction.
SET SPEED LIMITS
■
(Example)
Yard Speed
Limit
Set appropriate speed limits on your company
grounds, and post signs that are clearly visible.
KEEP PEOPLE OUT OF THE
■
OPERATING AREA
No Pedestrians
Closed to Pedestrians
No other personnel should be allowed in areas
where the lift truck is used.
Where other people must be present, post a guide
whose job is to make sure people stay clear of
moving vehicles.
1-4
FOR SUPERVISORS PLANNING AND WORKING AREA

KEEP UNAUTHORIZED VEHICLES OUT
■
No entry of
unauthorized
vehicles
Unauthorized vehicles must be kept out of the
load handling areas. Post signs or give signals as
required.
ASSIGN TRAFFIC GUIDES TO
■
CONGESTED AREAS
Post a trafc guide in conned or congested areas
where other people or vehicles may pass. All
personnel must obey the guide’s signals.
PROVIDE ADEQUATE LIGHTING
■
Safe operation requires well-lit traveling routes, so
pedestrians and obstacles can be easily seen. Use
headlights, taillights, helmet lamps or other lights as
appropriate.
KEEP THE GROUND LEVEL AND DRY
■
Be sure that all areas where the lift truck travels are
level and regular. Clear away pools of oil or water.
SAFETY MEASURES FOR DANGER SPOTS
■
Post warning signs or take other appropriate
measures to ensure that lift truck operators keep
away from danger spots as they travel.
1-5
FOR SUPERVISORS PLANNING AND WORKING AREA

INSTALL CURBS OR RAILINGS
■
If the truck is to be used on a loading dock, shore
wall or other raised surface, install curbs or railings.
DO NOT RELY ON THE OVERHEAD
■
GUARD
The overhead guard is a protective device that
will moderate the impact of an object falling from
overhead, but it cannot withstand every impact. If a
heavy object seems likely to fall on the truck, make
every effort to prevent it from doing so.
1-6
FOR SUPERVISORS PLANNING AND WORKING AREA

PROPER USE OF THE LIFT TRUCK
■
The proper use of a lift truck is to transport a load
which is placed on the pallet and stacked within the
prescribed height limit.
With a proper attachment, a lift truck may be used
to transport a load which is stacked elsewhere than
on the pallet.
IMPROPER USE
■
Transporting a person, elevating a person, and
towing another vehicle are examples of the
improper use of a lift truck. Uses which this manual
species as improper must never be requested or
permitted, under any circumstances.
(Examples of Improper Use)
Transporting or elevating a person on the forks or
•
pallet.
Carrying a person on the pallet to control the
•
load.
Hanging wire ropes from forks to lift a load.
•
Towing another vehicle.
•
Pushing a load or another vehicle with the forks.
•
Using the forks or truck body to close or open the
•
door of a freight vehicle.
1-7
FOR SUPERVISORS PROPER AND IMPROPER USES

READ MANUAL AND DECALS
■
Read the Operation & Maintenance manual
and caution plates on the truck, and become
familiar with your truck and operating procedures.
Remember that individual lift trucks might be
different in design and construction from one
another. Observe the caution decals on the truck.
Keep this Operation and Maintenance manual on
the truck as a ready reference for anyone who may
drive or service it.
KEEP DECALS LEGIBLE
■
YOU MUST FOLLOW THESE RULES TO AVOID SEVERE INJURY OR
DEATH TO YOURSELF AND OTHERS.
1. Operate truck only if trained and authorized by your employer. Know
Operation & Maintenance Manual and all work rules.
2. Safety check truck every day. Do not start if damaged or faulty; stop if
problems start.
Repair allowed only by trained, authorized mechanics.
3. Turn, start, stop, and handle loads smoothly and slowly.
Carry loads low and tilted back; stack only on level using minimum tilt.
4. Look where you are going. Watch out for people, hazards on oors
and overhead, drop-offs and tail swing clearance.
5. Truck overturn can kill you. Slow for turns even when empty. Never
turn on inclines.
6. Do not lift overweight or loose loads.
Move slowly with wide, high, or long loads.
Keep forks wide and fully under loads.
Travel in reverse if loads block view.
Attachments require special training, ask your employer.
7. Keep loads upgrade on all inclines. Stay clear of ramp and dock
edges. Make sure dockboards and trailers are secure before going on
them.
8. Overhead guard and load backrest must be on truck.
Always keep yourself completely inside guard.
9. Stop engine when refueling. Follow Operation & Maintenance Manual
and employer’s work rules about fuel, battery and tire maintenance
hazards.
10. Forks can fall rapidly even with light loads.
Do not raise people or allow them under forks.
No passengers allowed on truck.
11. Park only in authorized areas, never on inclines.
Lower forks to bottom, put direction control in neutral, turn off key and
make sure parking brake is set.
12. Fasten the seat belt, when operating the lift truck.
WARNING
The decals on the truck describe safety precautions
and operating instructions. Replace any damaged
or missing decals. Check that the decals are legible
during regular inspections.
USE THE RIGHT TRUCK FOR THE JOB
■
Be sure the type and capacity of the lift truck is
suitable for the work environment.
Check Point Choice
Capacity Load capacities range from 0.5 to 42
tons. Pay particular attention to the load
center.
(UniCarriers Lift Truck Capacities: 0.5,
0.7, 0.9, 1, 1.35, 1.5, 2, 2.25, 2.5, 2.75, 3,
3.5, 4, 4.5, 5, 6, 7, 8, 10, 10.5, 11.5, 12,
13.5, 15, 18, 20, 22, 23, 24, 25, 30, 37,
or 42 tons.)
Power Source Gasoline, natural gas, diesel, and
battery- powered models are available.
Fuel costs and exhaust composition will
vary.
Balance On counterbalanced models, the
counterweight at the rear makes the
vehicle longer than reach trucks. A reach
truck performs loading and unloading
by extending the front part of the mast
outward, which gives it the advantage of
compactness.
Tires For indoor use, there are models with
solid tires (best for reach trucks) and
cushion tires (engine type or battery
type). Both are compact.
For outdoor use, pneumatic tires work
well. Solid cushion tires, with the same
dimensions as pneumatic tires, may be
the best choice in cases where the load
materials or surface conditions could
puncture pneumatic tires.
Flammable
Materials
For handling flammable materials
such as petrochemicals, a combustion
engine is too dangerous. An electric
vehicle with explosion-proof or safety-
reinforced construction is required. (A
battery power source always offers
better protection against fire than a
combustion engine.)
1-8
FOR SUPERVISORS TYPES OF VEHICLES AND LOADS

USE THE PROPER ATTACHMENT
■
WARNING
Avoid hoisting a load with wire rope hung
from the forks or an attachment, or avoid
lifting a freight container with forks, because
there is danger of the truck tipping. If
necessary, have a qualified operator use a
hook or crane arm attachment.
Popular Attachment Examples
⑤: Crane Arm
(For slinging work)
①: Roll Clamp
(For paper roll or
drum handling)
②: Rotating Fork
(For damping work
or charging work)
③: Hinged Fork
(for lumber handling)
④: Side Shift
(For precise stacking
in containers or other
narrow spaces)
1-9
FOR SUPERVISORS TYPES OF VEHICLES AND LOADS

HAVE A GOOD VENTILATION
■
Engine-powered trucks
When the engine is run indoors such as in an
enclosed warehouse, have a fresh-air ventilation.
Exhaust fumes can cause chemical poisoning, and
in the worst case exhaust fumes can kill. When
warming up or operating the truck indoors, open the
windows and doors or use a fan to make sure there
is a good ventilation.
USE STURDY PALLET MATERIALS
■
Pallets and skids must be strong enough to
withstand the heavy weights of loading and
unloading. Remove or repair any damaged pallet.
STACK LOADS SECURELY
■
When stacking loads, place them in a stable
manner that they will not easily come apart, and be
sure the weight is evenly distributed. Secure the top
layer with a cord wrapped like a headband or in a
similar fashion.
KNOW THE WITHSTAND LOAD OF
■
YOUR FLOOR
The lift truck is heavier than it appears. For
example, a 2-ton truck weighs almost 3.5 tons
even when empty. Furthermore, when loaded, 80
to 90% of the total weight is concentrated on the
front wheels. Check the strength of your oors and
roadways, and if necessary reinforce them.
1-10
FOR SUPERVISORS TYPES OF VEHICLES AND LOADS

ALWAYS INSPECT BEFORE
■
OPERATING
The operator should always inspect the truck before
each use to verify that all essential safety features
are working. Any abnormality is to be reported to
the supervisor, who is responsible for correcting it.
PERIODIC INSPECTIONS ARE
■
MANDATORY
Monthly and annual inspections must be performed
thoroughly, and any abnormality promptly repaired.
Only a certied expert who has the advanced skills
and equipment is allowed to conduct inspections.
REPLACE SAFETY PARTS REGULARLY
■
Name of safety parts
Recommended
replacement interval
(year)
1Master cylinder and wheel cylinder cups
and dust seals 1
2 Power steering hose 2
3 Reserve tank tubing 2 – 4
4 Fuel hose (Engine-powered trucks) 2 – 4
5Torque converter rubber hose
(Engine-powered trucks) 2
6 Rubber parts inside power steering unit 2
7 Lift chain 2 – 4
8 Load handling means hoses 1 – 2
Certain critical parts must be replaced at regular
intervals. Since it is difficult to detect wear on the
above parts by visual inspection, they must be
replaced at the intervals specied, because a failure
would result in a falling load or runaway truck.
NEVER USE AN UN-MAINTAINED
■
TRUCK
Out of
Service
A truck that has not passed an inspection must
never be operated. Hang a sign on the truck and
remove the ignition switch, to make sure no one
uses it. Then report the problem to the supervisor
and wait for the repair to be completed.
1-11
FOR SUPERVISORS INSPECTION

DESIGNATE A REPAIR AND ASSEMBLY
■
SUPERVISOR
Repairs and the mounting and dismounting of
attachments must be performed under the direction
of a designated supervisor. The body and major
parts of the lift truck are quite heavy and under very
high pressure. Repair or assembly work undertaken
without careful and thorough preparation can lead
to serious injury.
TRANSPORTING THE LIFT TRUCK
■
Use a level, hard road surface when loading the
truck onto or unloading from a trailer and when
unloading it. Be certain that the ramps have
sufficient length and width as well as strength.
Do not load or unload the truck when it is raining,
unless the ramps are fitted with an anti-slipping
surfaces.
It is safest to use a self-loading trailer truck
equipped with a jack and winch. For loading, tilt
the truck bed with the jack, attach the winch to
the towing pin of the lift truck, and pull it up. The
operator must not ride on the lift truck during
loading or unloading.
USE OPTIONAL “LIFTING EYES” FOR
■
LIFTING YOUR LIFT TRUCK
WARNING
Never hoist your lift truck at its overhead
guard or counterweight; otherwise there is a
danger of the truck falling.
If hoisting the lift truck is necessary for any
reason, use optional “Lifting Eyes.”
WARNING
Observe the following conditions when lifting
the lift truck:
Use optional “Lifting Eyes”.
•
Use ropes strong enough to withstand the
•
weight of the truck.
Do not use any wire rope which is kinked,
•
deformed or frayed.
Lifting the truck should be performed only
•
by qualied personnel.
Do not enter under a lifted truck.
•
LIFTING
EYES
1-12
FOR SUPERVISORS TRANSPORTING THE LIFT TRUCK

GOT A LICENSE?
■
Before traveling on a public road, be sure that the
truck has been licensed and inspected as required
by local laws.
NO LOAD, NO TOWING
■
It is usually illegal to carry a load on a public road. It
is also not allowed to make a sideways travel or tow
another vehicle on a public road (with the possible
exception of a disabled vehicle). Never tow another
vehicle, even on company property.
OBEY TRAFFIC LAWS, AND TURN OFF
■
YOUR LIGHTS
On a public road, the lift truck must obey the same
laws as any other vehicle. Do not use rear working
light.
1-13
FOR SUPERVISORS TRAVELING ON PUBLIC ROADS

NO OPERATION WITHOUT LIGHTS,
■
OVERHEAD GUARD, OR BACKREST
Load
backrest
Overhead
guard
Lamps
The lift truck cannot be used if the headlights,
taillights, overhead guard, backrest, horn or turn
signals have been removed. Any parts that have
been temporarily removed for some reason must be
reattached immediately.
OBTAIN APPROVAL FOR ANY
■
MODIFICATION
Modifications or additions that affect the capacity,
construction or strength of the truck must not be
performed by the user without the manufacturer’s
or his authorized representative’s prior permission.
For example, don’t add a counterweight.
IMPLEMENTATION OF MODIFICATIONS
■
Only in the event that the truck manufacturer is no
longer in business and there is no successor in the
interest to the business, the user may arrange for
a modication or alteration to a powered industrial
truck, provided, however, that the user shall:
a) arrange for the modification or alteration to
be designed, tested and implemented by an
engineer(s) expert in industrial trucks and their
safety;
b) maintain a permanent record of the design,
test(s) and implementation of the modication or
alteration;
c) approve and make appropriate changes to the
capacity plate(s), decals, tags and instruction
handbook;
d) affix a permanent and readily visible label to
the truck stating the manner in which the truck
has been modified or altered together with the
date of the modification or alteration, and the
name and address of the organization that
accomplished the tasks.
1-14
FOR SUPERVISORS MODIFICATIONS

KEEPING THE TRUCK BALANCED
■
Lift trucks are equipped with load handling means
including a mast and forks at its front part. The front
wheels of the truck work as a fulcrum to balance
the center of gravity of the truck and the center of
gravity of the load. The relationship between the
locations of those two centers of gravity is vitally
important for safety.
KNOW THE CENTER OF GRAVITY OF
■
YOUR LOAD
Load center (from fork root) mm
Load’s
center
gravity
Distance
Allowable load (kg)
Weight x distance = moment (constant)
Basic load center
Materials of various shapes such as boxes or flat
or cylindrical items may be loaded on the lift truck.
In order to accurately judge the stability of the
truck, it is vitally important for the operator to know
the location of the center of gravity for each type of
load.
HOW THE CENTER OF GRAVITY
■
SHIFTS
Truck’s center of gravity
with standard mast raised
Truck’s center of gravity
with high mast raised
Lift truck viewed from front
The higher the load,
the higher the truck’s
center of gravity Truck’s center of
gravity with truck tilted
The stability of the lift truck is determined by the
overall center of gravity, which is the product of the
centers of gravity of the truck and the load. When
the truck is empty, this point is the same as the
center of gravity for the truck, and when it is loaded
it shifts according to the center of gravity of the
load. Since the center of gravity of the load changes
whenever the mast is tilted forward or backward or
the fork is raised or lowered, the overall center of
gravity also changes. The center of gravity is also
governed by the following factors:
Size, weight and shape of the load
•
Unloading height
•
Tilt angle of the fork
•
Tire material
•
Acceleration, deceleration and turning
•
Surface condition and gradient of the road
•
Type of attachment
•
1-15
HOW THE LIFT TRUCK WORKS?