Instruction Manual

Caterpillar: Non-Confidential
maintaining the machine. If necessary, put
warning labels around the machine.
Clean Before Overhaul and Maintenance
 Clean machines before overhaul and
maintenance. This is to prevent dirt from falling
into the machine and to make sure that the
maintenance can be done safely.
 If the machine is dirty in the course of
overhaul and maintenance, it is difficult to
avoid dirt or mud going into eyes or slipping
and getting injured.
 A few tips for cleaning wheel loaders:
1. Wear anti-slip shoes to avoid slipping
on wet surface.
2. When cleaning wheel loaders with
high-pressure water, wear safety clothing.
This way, your eyes and skin can be
protected from the impact of
high-pressure.
3. Do not spray water directly onto the
electrical components (e.g. sensors, wire
connectors). If water get into electrical
system, operation failure may arise.
Keep the Working Place Clean and Tidy
 Do not leave any service tools at the
working place. Wipe up grease and lubricant
etc. to protect people from slipping. Clean and
tidy working place to ensure safe maintenance
 If the working place is not tidy, danger
such as slipping and tripping may arise.
Identify the Responsible Person for the
Group
 Identify the person responsible during
maintenance and while loading/unloading the
wheel loader. Everybody should follow his
instruction.
 When working together, misunderstanding
may lead to a serious accident.
Water Level in the Radiator
 When checking water level in the radiator,
stop the engine. After engine and radiator
cools down, check the water level of radiator.
Do not randomly open the radiator cover.
 If it is necessary to open the radiator cover,
follow the below instructions:
1. Check the water level after water
temperature in the radiator cools down.
(When checking if the water temperature
has gone down, put your hand near the
engine or the front face of the radiator and
check the air temperature. Be careful not
to touch the engine or the radiator.)
2. When the water fill cover can be
opened with a bare hand, unfasten the fill
cover to release the inner pressure.
 If the top cover of the radiator needs to be
open, do not open it until the water
temperature cools down and the inner
pressure is released.
Shut Down Engine Before Overhaul and
Maintenance
 In the course of overhaul and maintenance,
park wheel loader on the flat ground where
there is no danger of falling rocks or land slides.
If it is a low terrain, there should be no danger
of flooding. Then shut down engine.
 After engine stops, move the work tool
control lever to the “lifting”, “lowering” and
“rack back” positions a few times as to release
the remaining inner pressure in the hydraulic
systems. Lower the work tools to the ground.
 Pull up the brake lever to implement the
brake and then put the block under tires.
 Lock front and rear frame with lock bar.
 Be careful not to get hurt by moving
components and parts.
Support of Work Tools
 During check and maintenance when the
bucket is lifted, support the lift arm so that it
doesn’t fall.