1, check the cylinder pressure or vacuum.

2. Check and adjust the valve clearance.

3, check the thermostat work is normal.

4. Check whether the multi-way reversing valve, lift cylinder, tilt cylinder, steering cylinder and gear pump are working properly.

5. Check if the gear shift of the transmission is normal.

6. Check and adjust the gap between the brake pads of the hand and foot brakes and the brake drum.

7. Replace the oil in the oil pan and check that the crankcase ventilation pipe is in good condition. Clean the oil filter and the diesel filter element.

8. Check whether the generator and starter motor are installed firmly, and whether the wiring head is clean and firm, and check whether the carbon brush and the commutator have worn.

9. Check the tightness of the fan belt.

10. Check if the wheel is firmly installed, whether the tire pressure meets the requirements, and remove the debris embedded in the tread.

11, due to carry out maintenance work and dismantle parts, when re-assembled after the forklift road test.

(1) The braking performance under different degrees shall be free from deviation and meandering. On a steep slope, after the brakes are tightened, it can be stopped reliably.

(2) Listen to the engine running under conditions of acceleration, deceleration, heavy load or no-load, etc., with or without abnormal sound.

(3) After the road has been tested for a period of time, check for overheating at the brake, transmission, front axle housing, and gear pump.

(4) Whether the fork carriage's lifting speed is normal and shaking or not.

12. Check whether the oil tank oil inlet filter plugs are damaged and clean or replace the filter.