CG938H Wheel Loader. Manual - part 13

 

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Refer to local regulations on lifting weight, width and length. 

For shipment of loader please contact Chenggong. 

Correct lifting: 

Correct lifting: 

z  Make sure that fixing rods on both front and rear frames are set to “Fixed” position to avoid relative turning of 

frames when lifting. 

z  All control levers should be placed in neutral position. No person is allowed to stay in the cab. 

z  Shut down engine and lock all equipment with keys before taking off keys. 

Turn off the power switch. 

Close and lock right window and left door of the cab. 

z  Make sure that there is no obstacles or persons in the range of lifting operation. 

z  Make sure that wire ropes and hooks have adequate strength. A crane must be used for horizontal lifting of the 

loader. 

z  Firmly connect wire ropes or hooks with ears marked for lifting on front and rear frames. 

z  Personal entry into areas under the loader or within the range of lifting operation is strictly prohibited. 

z  When lifting a loader onto a transportation vehicle or vessel, the loader must be properly fixed with wire 

ropes with all tires firmly wedged by wood blocks to avoid unexpected movement of loader during 

transportation. 

z  After the lifting is complete, always remember to retract fixing rods before steering the loader. 

 

 

 

 

 

 

 

 

 

 

 

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X. Trailer 

WARNING 

Incorrect towing of loader out of service may cause personal injury and death. 

Loader tires must be wedged before releasing brakes to avoid loader movement. In case tires 

are not properly wedged, consequential movement of the loader may case personal injury or 

death and other losses. 

Loader should be properly towed as per the following instructions. 

Note that these instructions are applied only in emergencies to tow a loader out of service when 

moving distance is within several meters and the speed is no higher than 2km/h to trail the machine 

to service area. For long-distance move a transporting van will be needed. 

The trailer should have a shield to protect operator in case towing line or towing lever breaks. 

Machine to be towed is not allowed to carry people unless an operator is necessary to control 

direction or brake. 

Make sure that the towing line or towing lever is in good order and has adequate strength to pull the 

machine before operation. The towing line or towing lever should be capable of towing a weight 

that is 1.5 times of machine gross weight to pull the machine out of mud or over a slope. 

The towing line angle should be minimized: the angle between towing line and dead-ahead 

direction should not exceed 30º. 

Too fast machine movement will break towing line or towing lever. Slow and smooth machine 

movement will facilitate the operation. 

Generally the trailer should be equipped with adequate brake capacity, weight and power to control 

the upward movement of both vehicles on slopes and the traveling distance thereof. 

The machine should be followed by a larger trailer or other equipment when going down a slope, so 

as to provide adequate control and braking capacity and prevent the machine from being out of 

control and rolling down. 

For example, a smaller trailer is sufficient in towing the loader on level and smooth road surfaces 

while a larger trailer is necessary for sloped roads with bad surface conditions. Specific instructions 

for various situations are not to be further described here. 

For more information on towing a loader out of service please contact Chenggong. 

Working Engine 

 

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CAUTION 

If power system and steering system of the loader still works with a working engine, the 

loader may be towed for a small distance to get out of muddy road or to the roadside. 

The operator of machine being towed must steer in the direction indicated by towing line. 

Make sure that loader is towed in strict accordance to instructions provided in this part. 

Shut-Down Engine 

Go through the following procedure before towing a loader with a shut-down engine: 

1． Connect piston chamber and dedicated hose in the same turning cylinder to allow free 

movement of turning cylinder. 

CAUTION 

Make sure that cylinder hose is properly connected before operating the loader. In case the 

hose is connected in reverse direction, steering system will not work. 

2． In case a failure of gearbox or transmission system possibly occurs, dismount driving axle split 

shaft. 

Refer to service manual for information on mounting and dismounting of driving axle split shaft. 

WARNING 

Loader will lose its parking brake when driving axle split shaft is dismounted, and the 

slippage of loader may cause personal injury or death. 

Wedge all tires to prevent the loader from moving. 

Trailer must be firmly connected, or the loader must be towed by two trailers in the same size 

as or larger size than the loader to be towed. In this case, both trailers should be connected 

with the loader, one in the front and the other in the back. 

Make sure that all repairs and adjustments are done before a serviced loader is reused. 

3． Release parking brake. 

4． Firmly apply towing lever. 

Remove tire wedges and tow the loader slowly at a speed no higher than 2km/h. 

 

 

 

 

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Production Information 

I. General Information on Loader 

1.1 Applicability 

   

Loader is applicable to bucketing, stacking and towing operations in mines, roads, water conservancies 

and constructions, as well as conveying earth, sands, gravels and other loose materials in stock yard in 

factories, railway stations and ports. 

—  Requirements for working environment   

1.  Ambient temperature: -15℃-40℃ 

2.  Elevation: ≤3000m 

3.  Wading depth: ≤650mm 

  This loader is a common machine and is not applicable for the flammable, explosive, much 

dust or noxious gas environment. 

—  Operation prohibited   

1.  Overload. 

2.  Directly hang the hanging cable on the bucket tooth to lift the heavy articles. 

3.  Lift the bucket to excavate on the upper side of the machine. 

—  Precautions: 

The precautions for operation, maintenance and safety in this manual are only applied to the 

use of this machine as per the specified purposes. If the user uses the machine beyond the 

application scope specified in this manual, Sichuan Chengdu Chenggong Construction 

Machinery Co., Ltd. will bear no any responsibility for this, and the safety responsibility of 

such operations shall be born by the user. At any circumstances, the operations against this 

manual shall not be conducted.