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Weichai WD615 Engine Parts air compressor
  • Weichai WD615 Engine Parts air compressor
  • Weichai WD615 Engine Parts air compressor
Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Min. Order: 1 Piece/Pieces
Delivery Time: 1 Days
Packaging: box
Productivity: 10000
Transportation: Ocean,Land,Air
Place of Origin: CHINA
Supply Ability: 1000 Pc per day
Certificate: ISO
Port: Shanghai,Qingdao,Guangzhou
Basic Info

Model No.: 612600130430

Product Description

AIR COMPRESSOR 612600130430 suitable for Wei chai WD615 Engine Spare Parts

9 common faults and solutions of air compressors

   1. The air compressor suddenly stops during operation

  The reasons are:

  (1) The suction pressure is too low, which is lower than the low pressure lower limit of the pressure relay;

   (2) Exhaust pressure is too high, causing the high-voltage relay to operate and power off;

   (3) The oil pressure is too low, and the oil pressure relay acts as a relay;

   (4) Motor overload, thermal relay action relay;

elimination method:

  (1) Check the reason. If the pipeline is blocked, the pipeline should be unblocked. If the system refrigerant is insufficient, add it;

  (2) Check the cooling capacity or cooling air volume of the condenser;

  (3) Check the pipelines and pumps of the oil delivery system;

  (4) Check whether the power supply voltage is low or the cooling load is too large;

   2. Exhaust gas compression is too high

  The reasons are:

  (1) The cooling water volume of the water-cooled condenser is insufficient or the cooling air volume of the air-cooled condenser is insufficient;

   (2) The surface of the condenser tube cluster is too thick or oily, which causes difficulty in heat dissipation;

  (3) There is air in the refrigeration system;

   (4) Overfilling of refrigerant;

  (5) The valve in the exhaust pipe fails, causing the pressure to be too high;

elimination method:

  (1) Check whether the valve is fully open, increase the water supply or check the motor voltage, speed, and whether the transmission belt is too loose;

   (2) Clean the scale and brush the oil stains to make the surface of the condenser tube clusters clean;

   (3) let out the air;

   (4) Exhaust excess refrigerant;

  (5) Check and correct the valve;

   3. Causes the wet stroke of the air compressor

  The reasons are:

   (1) The thermal expansion valve fails and the opening is too large;

   (2) The solenoid valve fails, a large amount of refrigerant enters the evaporation pipe after the shutdown, and enters the air compressor when it is turned on again;

  (3) The system is filled with too much refrigerant;

   (4) The temperature sensing bulb of the thermal expansion valve is loose and not tied, causing the opening of the thermal expansion valve to increase;

elimination method:

   (1) Close the liquid supply valve and overhaul the thermal expansion valve;

  (2) Overhaul the solenoid valve;

   (3) release excess refrigerant;

   (4) Check the binding of the temperature sensor bag;

   4. The air compressor is stuck

  The reasons are:

   (1) There are dirty impurities in the lubricating oil;

   (2) The oil pipe of the oil pump is blocked, causing the cylinder to run out of oil and the piston is stuck;

   (3) The shank pin of the main gear of the oil pump inserted into the crank is twisted, causing the oil system to cut off;

elimination method:

  (1) Replace with new lubricant;

  (2) Repair the oil pump pipeline;

  (3) Repair and replace the main gear shaft of the oil pump;

   5. There is a strange sound in the cylinder

  The reasons are:

  (1) The dead center clearance in the cylinder is too small;

   (2) The clearance between the piston pin and the connecting rod bushing is too large;

  (3) The valve plate is broken;

  (4) The sound of oil hitting caused by the crankshaft crank or the big end of the connecting rod;

elimination method:

  (1) Adjust the thickened cylinder gasket;

   (2) Replace the piston pin or bushing;

  (3) Shut down immediately to replace the valve;

   (4) It is not necessary to shut down for a short time, such as stopping for inspection after a few minutes;

   6. There is sound in the crankcase

  The reasons are:

  (1) The connecting rod nut is loose;

   (2) The gap between the connecting rod and the bearing bush is too large;

elimination method:

   (1) Stop and re-tighten;

  (2) Replace the tiles;

  7. The air compressor does not start

  The reasons are:

  (1) The fuse is in poor contact or blown out when the power is off;

   (2) Poor contact of the vertical contact point of the starter;

  (3) The temperature controller is out of adjustment or malfunctions;

  (4) The adjustment of the pressure relay is not suitable;

elimination method:

  (1) Check the power supply and fuse;

   (2) Check the starter and clean the contacts with gauze;

   (3) Check the temperature indication position and check the various components;

  (4) Check the components or setting values of the pressure relay;

   8. The air compressor has insufficient cooling capacity

  The reasons are:

   The piston ring is worn or the gap between the piston and the cylinder is too large due to wear;

elimination method:

   Replace with new piston ring or overhaul with new parts;

   9. There is noise in the air compressor and motor coupling

  The reasons are:

   (1) The air compressor and the motor coupling are not properly matched;

  (2) The key and the keyway of the coupling are not properly matched;

  (3) The elastic ring of the coupling is loose or damaged;

  (4) The belt is too loose;

  (5) The inner hole of the coupling and the shaft fit loosely;

elimination method:

  (1) Reassemble according to the correct assembly requirements;

   (2) Adjust the fit of the key and the keyway, change the key;

  (3) Fasten the elastic ring or replace it with a new one;

  (4) Adjust and tighten the belt;

  (5) Adjust and tighten the coupling;

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Shandong Tianfu International Trade Co.,Ltd.

  Wheel Loader full spare patrs including: XCMG,LIUGONG,SDLG,LONKING ,SEM,XGMA,CHENG GONG ,SHANTUI,FOTON LOVOL ,DOOSAN, etc. Spare parts of each system including:Diesel engine system(Weichai,Shangchai,Xichai,DEUTZ),torque converter system,transmissoin system,transmission control system,axle system,implement hydraulic system,steering system,foot and hand brake system,front frame,tank,cab group,cover system,air conditioner system,electric system , etc. Wheel Loader Multi-function Auxiliaries :Wood grabber, pipe grabber, cotton grabber, grass grabber, sweeper, marble fork, snow shovel, snow thrower, ditch opener, etc.

Company Info
  • Company Name: Shandong Tianfu International Trade Co.,Ltd.
  • Representative: Hongxin Gao
  • Product/Service: Loader Parts , Road Roller Parts , Wheel Loader Parts , Excavator Parts , Bulldozer Parts , Auto Parts
  • Capital (Million US $): 10000000RMB
  • Year Established: 2019
  • Total Annual Sales Volume (Million US $): Below US$1 Million
  • Export Percentage: 61% - 70%
  • Total Annual Purchase Volume (Million US $): Below US$1 Million
  • No. of Production Lines: 4
  • No. of R&D Staff: Fewer than 5 People
  • No. of QC Staff: 5 -10 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): Below 1,000 square meters
  • Factory Location: 2-2-101, Sanjian Ruijingyuan, No. 3 Lanxiang Middle Road, Tianqiao District
  • Contact Person: Mr. Hongxin Gao
  • Tel: 0086-531-82793636
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