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CG938H Wheel Loader. Manual - part 4

Ⅲ Operation of the machine

Safety issues

In this section, relevant safety warnings and some accident threats are explained. Please assign

some time to get familiar with these safety issues before starting the machine.

Warning contents

Warning

Unless you have already read and comprehended the servicing instructions and safety issues,

do not work on this machine. Failure to follow the instructions or ignorance of warnings may

cause injuries. Be prudent is your responsibility.

Warning

This cab is integrated with the ROPS. Structural damages, rollover, modifications,

replacements or improper repair may detrimentally affect the protective performance of

ROPS and thus fail the standard that has been met previously. Please consult Sichuan

Chengdu Chenggong Construction Machinery Co., Ltd for the limit of failure of the ROPS.

Warning

Improper external power supply may cause explosion and injuries. Tandem storage battery

shall be contained in a separate storage battery box. When using an external power supply,

the (+) pole of the wire shall be connected to the positive (+) pole of the storage battery that

connects the starter coil, and the negative (-) pole of the wire of external power supply shall be

connected to the negative pole of the starter. (If there is no negative pole of starter, connect to

the body of engine.)

Warning

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.

Warning

When servicing hydraulic 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.

Warning

During the operation, repair, lubrication, maintenance and operation of this machine, only

one person with operation certificate is allowed to operate machine or conduct servicing of

repair, lubrication, maintenance, etc. Other people shall stay away from the machine. When

operating the machine, it is prohibited to have more than one person in the cab.

Common hidden troubles

Before maintaining or repairing the machine, please hang “please do not operate” or similar

warning label on the engine start switch or hydraulic operation handle.

When maintaining or repairing the machine, shall wear hard cap, protective goggles and other

articles called for by the work environment.

When operating or maintaining the machine, shall not wear loose clothes or jewels, otherwise may

get entangled on the control lever or other parts of the machine.

Ensure all guard plates and cover plates are fixed on the machine.

Ensure there is no fragment, oil stain, tool or other irrelevant miscellaneous matters on the machine,

particularly on the console panel, passage or stairs.

Put the miscellaneous articles in order, such as dinner pail, tools and other miscellaneous articles

irrelevant to the machine.

e clear of the hand-and-arm signals at site and who give signals. Only receive signals from one

person.

Never contain maintenance solution in glass container.

Be careful when using cleaning agents.

Report all items needing repair.

Unapproved personnel are not all allowed to be on the machine.

Maintenance shall be conducted in accordance with the following requirements (except for

otherwise specified):

z Park the machine on horizontal ground

z Shift the shifting handle to neutral position.

z Shift the hydraulic control lever to maintaining position

z Stop engine

z Press the parking switch button

z Turn the preheat start switch to “0” position and take off the key

Turn off the master switch

3.1 Get Familiar With the Machine

z Only those personnel who have received training and

obtained qualification are allowed operate and

maintain the machine.

z Read and comprehend operation and maintenance

instructions and safety issues, otherwise do not work

on the machine.

z Failure to follow the instructions or ignorance of warnings may cause injuries.

z When there is oil or grease at or near the operation position, please remove it. Otherwise there

will be peril of slip.

z During the operation, repair, lubrication, maintenance and operation of this machine, only one

person with operation certificate is allowed to operate machine or conduct servicing of repair,

lubrication, maintenance, etc. Other people shall stay away from the machine. When operating

the machine, it is prohibited to have more than one person in the cab.

z Various checks on the machine shall be conducted prior to operation. Check whether all the

safety protective devices are in a safe status; whether the tires are worn and whether the tire

pressure is proper. Check whether there is abnormal phenomenon of oil leakage, water leakage,

gas leakage, deformation, looseness, abnormal sound, etc., which may cause malfunction or

severe accident.

3.2 Get in and off the Machine

●

Climb up and down the machine only at places where there is a ladder or steps.

●

When getting in or off the machine, do not wear loose clothes such as headscarf or jewels,

otherwise they may be clamped and injuries may be caused.

●

Check the handrails and steps before getting in and off the machine; remove oil stains, lubricants

or mud if there is any. Besides, damages of parts shall be repaired and loose bolts shall be

fastened.

●

It is prohibited to jump onto or off the machine.

●

It is prohibited to get in or off the machine when the machine is moving.

● When getting in or off the machine, face the machine, hold the handrail and step on the steps; keep

three-point contact (two feet and one hand or two hands and one foot) to ensure the stability of the

body.

● It is prohibited to hold any control lever when getting in or off the machine.

●

It is not allowed to climb into the cab from the rear ladder of the machine or get off the machine

by the tires beside the cab.

●

Do not climb up or down the machine when carrying tools or

other articles; the needed tools shall be hoisted onto the

operation platform by rope.

3.3 Fire and Explosion Prevention

The fuel used by the engine of the loader, most lubricant

and some coolant are combustibles. It is very dangerous when flame is close by and special care

shall be taken.

z Do not leak the fuel on hot surface or electric components; otherwise may cause fire.

z When fill fuel, the engine must be stopped. Do not smoke when filling fuel or at the fuel-filling

area.

Explosive gas will be generated around the storage battery; keep flames away. Maintain and use

storage battery in strict compliance with the instructions in the product manual. Do not smoke at

places where storage battery is being charged or where combustibles are stored.

z Fasten the lids of containers in which the above stated combustible liquid is stored.

z Put the combustible liquid in protective containers and keep them at safe place. They shall be

stored by categories and marked accordingly. Prevent them from being used by non-staff people.

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