Isuzu 85KW Aerial Working Truck Bucket Trucks 200kg Load 5-Speed Manual Hexagonal Jib Strobe Light

Product Description:

                                                              Aerial work vehicle common problems and solutions

Fault 1: The hydraulic system can not reach the required working pressure, increase the engine throttle can not go on. Phenomenon: the leg can not be put in, the swing arm can not be lifted, and the turntable does not rotate. Judging from the pressure gauge, the pressure of each mechanism is very low.

Reasons: (1) The opening pressure of the relief valve is too low. (2) The oil level of the tank is too low, or the suction pipe is blocked. (3) The pressure pipeline and the return pipeline collude or leak too much, so that a large amount of oil does not work on the flow back to the tank. (4) The oil pump is damaged or leaked too much.

Elimination method: (1) Adjust the opening pressure of the relief valve (2) Add new oil or check the suction pipe (3) Check the oil circuit, especially all kinds of valve locks, motors, etc. (4) check the oil pump, repair, or replace.

Fault 2: Control gear failure
Reasons: (1) joystick failure (2) fork damage (3) Positioning bead spring failure
Elimination method: or repair or replace

Fault 3: Leakage of hydraulic system
Causes: (1) the joint is loose; (2) the seal is damaged; (3) the pipe edge is broken or the welded pipe joint has oil sand holes
Elimination methods: (1) tightening (2) replacement (3) Repair welding or replacement

Fault 4: Throttle control valve is not working
Reasons: (1) The wire rope in the system is stuck (2) the spring is damaged (3) the stroke changes due to the loosening of the rope clamp (4) Lack of lubricating oil

Elimination methods: (1) maintenance (2) replacement (3) Adjustment of travel; Fasten and lubricate each P position
Fault 5: Pressure gauge oil does not indicate, or pressure does not rise

Reasons: (1) The liquid level of the tank is too low or the suction pipe is blocked (2) The relief valve adjustment pressure is too low (3) The pipe edge of the oil pump before the oil inlet is not sealed (4) The oil pump is damaged or the pressure pipe or the return pipe is collusive or the leakage is too large (6) The pressure gauge is damaged

Elimination methods: (1) Add oil and remove foreign matter (2) Adjust the pressure appropriately according to the regulations (3) Eliminate the unsealed place (4) repair or replace (6) repair or replace (6) repair or replace

Fault 6: Noise and vibration of the oil circuit are serious
Reason: (1) There is air in the pipeline (2) component failure (3) pipe side components are not tight (4) The commutation is too fast (5) The oil temperature is too low (6) insufficient oil ⑺ pipeline blockage

Elimination method: (1) Each mechanism repeatedly operates, eliminates the internal gas, and repairs the oil pump. (2) Repair or replace (3) tighten the pipe card (4) Slow operation (5) no-load operation heating (6) Oil injection ⑺ dredging

Fault 7: The oil temperature is too hot
Reasons: (1) The internal leakage is too large (2) the pressure is too high (3) The continuous operation time is long, the ambient temperature is high (summer)

Elimination methods: (1) Repair components (2) Adjust the pressure (3) Stop the machine, rest and cool down before working.
Fault 8: The movement of the cylinder and motor is uneven, and there is a climbing phenomenon

Reasons: (1) There is air load in the hydraulic system is significantly compressed, so that the movement is not uniform. (2) Lack of lubrication between moving friction surfaces. (3) The gap between the moving parts and non-parts is too small, or the moving working parts are deformed.

Elimination method: (1) Fill the oil tank with enough oil and reciprocate each cylinder at high speed for several times. (2) Often lubricate with butter. (3) Check and adjust the appropriate tightness of the gap between the moving parts.

Fault 9: Leg movement is slow, retracting failure or even motionless
Reasons: ⑴ relief valve failure or pressure is too low. (2) Oil leakage in the cylinder, oil seal damage and reduce the volume efficiency of the cylinder, insufficient oil pump displacement, reversing valve failure or serious internal leakage. (3) There are foreign bodies or scars between the cone of the slide valve in the two-way hydraulic lock and the contact line of the seat. There is air in the cylinder.
Elimination method: (1) maintenance, replacement or pressure regulation. (2) Replace the oil seal, oil pump displacement is insufficient, do not increase the throttle, increase the engine speed, the reversing valve failure, light repair, heavy change. (3) Disassemble and clean, replace the heavy, and reconfigure the light. (4) Reciprocating movement several times to eliminate air.

Fault 10: The turntable does not work
Reasons: (1) The relief valve relief pressure is too low or completely out of order (2) The oil pump or rotary motor is not working (3) The pinion and the tooth circle are not meshing well (4) The worm gear reducer is not working (5) The reversing valve is out of order
Elimination method: (1) maintenance or adjustment (2 or repair or replacement) (3) Adjustment (4) or correction or replacement (5) Maintenance or replacement

Fault 11: Working arm does not rise
Reasons: (1) The overflow pressure of the relief valve is too low (2) the pipeline is blocked, the oil is blocked (3) the cylinder is seriously leaking (4) the reversing valve fails
Elimination methods: (1) pressure regulation (2) section by section inspection, in addition to stolen goods, rotating oil pump mechanism is not operated, one by one to loosen the pipe joint to see whether there is oil injection, can find out the specific location of the pipeline is blocked. (3) Replace the oil seal (4) Repair or replace

Fault 12: Working arm does not fall
Reasons: (1) The control pressure in the balance valve is too high (2) the pipeline is blocked, the oil is blocked (3) the reversing valve is out of order
Elimination method: (1) Adjust the pressure of the balance valve (2) exclude the working arm without rising (3) repair or replace

Fault 13: There is vibration in the falling arm
Reasons: (1) There is air in the cylinder cylinder (2) The speed limiting valve is improperly adjusted
Elimination method: (1) Remove air according to the maintenance method (2) re-adjust

Fault 14: Variable amplitude cylinder cannot be locked
Reasons: (1) There are scratches or foreign bodies on the cone of the balance valve and the oil seal cover of the valve seat; (2) The balance valve spring is broken and stuck; (3) The joint oil leakage (4) the cylinder leakage
Elimination method: (1) repair or replace (2) repair or replace (3) Fastening (4) repair or replace

Fault 15: Oil leakage from cylinder piston rod protruding
Reasons: (1) The sealing ring is damaged (2) the piston rod has scratches
Elimination method: (1) Replace the oil seal (2) Repair or replace it and remove the foreign body.

Fault 16: The traffic is insufficient
Reasons: (1) The engine speed is too low (2) the oil pump is seriously worn
Elimination method: (1) proper acceleration (2) repair or replacement

Fault 17: Noise is generated
Reasons: (1) The suction tubing joint is loose and inhaled air (2) The viscosity of the oil is too high (3) The speed of the pump is too high (4) There is air in the tank and the oil system (5) The connection of the pump shaft and the transmission device of the force box is different (6) The quality of the pump is not good, the movement is not uniform, the trapped oil phenomenon is not well eliminated or the plunger is stuck. The tube side or component is not well fastened, and the tube card is loose. ⑻ The oil temperature is too low.
Elimination method: (1) Tighten the joint (2) change the specified oil (3) Reduce the speed (4) exclude air (5) Reinstall the adjustment (6) clean and check the fastening of the components and pipe side of the pipe card (8) low speed empty car operation will warm the system.

Fault 18: The working bucket is not perpendicular to the bottom surface
Reason: The working bucket pin shaft, balance tie rod hinge shaft, pendulum rod and other places lubrication is not enough.
Elimination method: oil lubrication

Features:

• Product Name: Aerial Work Platform Truck
• Jib Structure: Five Section Hexagonal
• Engine Power(KW): Isuzu 85
• Maximum Operating Height(m): 25
• Number of Axles: 2
• Maximum Operating Radius Amplitude(m): 13.5
• Keywords:
  • vehicle mounted platform
  • telescopic aerial working platform truck
  • truck mounted aerial work platform

Technical Parameters:

FAQ:

Q1: What is the brand name of the Aerial Work Platform Truck?

A1: The brand name of the Aerial Work Platform Truck is dongfeng.

Q2: Can you provide the model number for the dongfeng Aerial Work Platform Truck?

A2: Yes, the model number for the dongfeng Aerial Work Platform Truck is CLW5070BPG.

Q3: Where is the dongfeng Aerial Work Platform Truck manufactured?

A3: The dongfeng Aerial Work Platform Truck is manufactured in suizhou hubei.

Q4: What kind of maintenance is required for the dongfeng Aerial Work Platform Truck?

A4: Regular maintenance for the dongfeng Aerial Work Platform Truck includes engine checks, hydraulic system inspections, structural integrity assessments, and safety equipment verifications to ensure proper functioning and compliance with safety standards.

Q5: What safety features are included in the dongfeng Aerial Work Platform Truck?

A5: The dongfeng Aerial Work Platform Truck is equipped with numerous safety features, such as guardrails, emergency stop buttons, anti-slip surfaces, and stability control systems to provide a secure working environment for operators at heights.