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CG938H Wheel Loader. Manual - part 6

When handling parts that contain asbestos fiber, it shall be avoided to inhale in asbestos dust, which

is harmful. The products of Chenggong that contain asbestos are brake pad, brake plate and some

gaskets, the asbestos inside which are normally sealed with colophony or by other means. As long as

no air containing asbestos is generated, normal handling is harmless.

When asbestos dust is generated, follow the precautions below:

z Never clean with compressed air.

z Do not brush or abrade materials containing asbestos.

z For better cleaning result, clean with wet cloth or

vacuum equipment with high efficiency dust/air

separation filter screen.

z Ventilate machining workstation of frequent use.

z Wear proper breathing mask when there is no way to

control asbestos dust.

z Observe applicable laws and regulations in the work

area.

z Store asbestos in compliance with relevant

environment laws and regulations.

3.7 Precautions for Crush or Cutting

During the operation of the machine, the space

between the front and rear frames is not allowed to be entered.

When the machine is hoisted and loaded on other machines, or when servicing at the middle of the

machine, the lock rod shall be installed between the front and rear frames to keep the machine in a

straight position. When the machine is hoisted and loaded on other machines, or when servicing at

the middle of the machine, the lock rod shall be installed between the front and rear frames to keep

the machine in a straight position.

Lock rod

Lock rod is painted with red warning color. When it is in a lock status, it can prevent perilous factors

caused by relative movement of articulated front and rear frames in case of being under

unpredictable foreign force. When the lock rod is in a lock status, the machine cannot run.

The lock rod must be in a lock status in following circumstances:

z During inspection, maintenance and repair of the machine;

z When preparing to leave after finishing the work and stopping the engine each time;

z When the machine is being hoisted;

z During shipment of the machine;

Fix

1. Keep the front and rear frames in a straight position.

2. Take off the rear split pin at the rear lug with a wrench,

then take off the pin shaft from the upper side.

3. Rotate lock rod onward until the hole in the lock rod is

concentric with the hole at front lug (see the picture).

4. Insert locking pin shaft from the upper side and fix it

with split pin. The front and rear frames are now in a

lock status.

Release

1. Take off the split pin at the front lug, then take off the

pin shaft from the upper side.

2. Rotate lock rod backward until the hole in the lock rod is

concentric with the hole at rear lug (see the picture).

3. Insert the pin shaft which was taken off from the upper

side and fix with the split pin. The front and rear frames are now in a free status.

z When servicing haudralic parts inside the front frame or front axle and the movable arm

is needed to be lifted, the bucket shall be located on a solid platform to prevent it from

falling and cause severe injuries. It is prohibited to have anyone stand underneath the

bucket or movable arm when the machine is working.

When working underneath the machine, the machine and its attachments shall be

properly supported. Do not rely on hydraulic device to keep the stability of the machine. If the

control mechanism moves or hydraulic pipeline leaks, any attachment may fall off.

Instructions on use of protective safety stand for lift cylinder

Protective safety stand for lift cylinder is a safety protective device. It is fixed at the rear frame.

Before servicing the wheel loader, it shall be removed from the fixing position and installed at the

indicated places of the lift cylinder (as shown in the diagram). The orders of the removal and

installation is as follows:

1. Remove the protective device;

2. Install it at the specified positions of the lift cylinder (two places at the left and right side of the

oil cylinder);

When not repairing, fix the protective device for the oil cylinder at the left side of the rear frame.

3. Install and fasten tightly its fixing bolt.

z Unless otherwise specified, no adjustment shall be made when the machine is working or the

engine is running.

z At the linkage mechanism of the work device, in accordance with the movement of the work

device, the space at the linkage mechanism may increase or decrease.

z Keep away from all rotating and moving parts.

z Ensure that there is no any foreign matter between the fan blades. Fan blades will throw out or

cut the tools or other foreign matters which fall inside or are pushed inside.

z Donot use twisted or worn wires or cables. Weare gloves when handling wires and cables.

z When removing bouncy objects, such as snap ring or closing ring, wear protective goggles to

protect eyes. Take care to check whether anyone is nearby in case injury being inflicted to other

people.

z When dissembling parts by hammering, fragments may fly over. Take care not to cause injuries.

3.8 Precautions in Using FOPS & ROPS (falling object protection structure or

rollover protection structure)

The rollover protection structure (ROPS) and falling object protection structure (FOPS) of the

When reparing,fix the

protective device on the

wheel loaders of Chengdu Contruction Machinery Co. Ltd are integrated with the cab. The FOPS &

ROPS are for protection of operator in case of heavy objects falling down from above or rollover of

the machine. The ROPS will not only bear the load when the machine is rolling over, but also absorb

impact energy.

z If the device is damaged by falling or rollover, its strength will decrease and it will be unable to

perform its protective functions. For this instance, please contact with Chengdu Contruction

Machinery Co. Ltd or its approved dealers to consult for repair method.

z Even if the POPS is installed, the operators must fasten safety belt for effective protection. Even

if no defect is discovered of the safety belt, it shall be replaced evrey three years.

z It is prohibited to bore or weld inside or outside of ROPS, otherwise the strength of ROPS may

be lowered. The protective performance of FOPS & ROPS will be weakened if the cab is

damaged or turnover occurs.

3.9 Proper Handling of Waste

In order to prevent pollution, especially in the places where people or animal abide, the

following requirements must be observed:

z Use leakage proof container when discharging liquid. It is not allowed to dump waste liquid on

ground, sewage or water source site.

z When handling harmful materials, such as lubricant, fuel, coolant, solution, filter, storage

battery and other materials, observe the relevant laws and regulations.

z The replaced waste tires shall be stored in specified safe place or be recycled. Do not dispose of

randomly.

3.10 Prevention of lightning injuries

When lightning occurs near the machine, the operator is prohibited to carry out following

procedures:

z Climb up the machine.

z Get off the machine.

If you are in the cab when lightning occurs, please remain in the cabin. If you stand on ground when

it occurs, you should stand at a place far from the machine during the lightning period.

Start of machine

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