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    Economic Development Zone, Yueqing, ZheJiang ,China
    Tel:0086-577-62665777 62665858
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    "Quality First, Credit Prior, Client Above All" is our company's highest motto. We warmly welcome customers from all over the world for any kind of cooperation with us to build a mutual benefit future.
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    Our company has more than 30 years manufacturing experiences in the industry of pneumatic tools, drill bits, woodworking router bits, chisel and hole saw. Dongya has the advanced process technology, complete quality control and testing facility and modern production lines, including a set of Germany-made auto brazing machine line for making drill bits.
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    ZHEJIANG DONGYA FACILITY CO., LTD., is a professional manufacturer of various air tools, and accessory parts of building tools and power tools. Our major products include air nailers, electric hammer drill bits, masonry drill bits, chisels, how saw, router bits and etc.
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    ZHEJIANG DONGYA FACILITY CO., LTD., is a professional manufacturer of various air tools, and accessory parts of building tools and power tools. Dongya owns the advanced process technology, complete quality control and testing facility and modern production lines, including a set of Germany-made auto brazing machine line for making drill bits.
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NORMAL TROUBLES REPAIRS

 

No. Symptom Problems Solutions
1.1 Air Leak Air leak in the cylinder cap when tools don't work 1.Loose head valve piston seal or o-rings Check and replace the head valve piston set
2.Worn or damaged o-ring or cylinder cap gasket under cylinder cap Check and replace o-ring or cylinder cap gasket under the cylinder cap
1.2 Air leak in Trigger area  when tools don't work 1.Damaged o-ring in trigger valve Check and replace  o-ring
2.Damaged o-ring in trigger valve stem Check and replace o-ring
3.Dirt in the trigger valve Check and clean the trigger valve
1.3 Air leak in cylinder cap when tools are working 1.Damaged head valve piston o-rings Check and replace  o-rings
2.Damaged seal under cylinder cap Check and replace seal
1.4 Air leak in nose when tools are working 1.Worn or damaged bumper Check and replace bumper
2.Loose driver(piston unit) thread Check and replace driver(piston unit)
1.5 Air leak in Trigger area when tools are working 1.Worn or damaged trigger valve head Check and replace trigger valve head
2.Damaged head valve piston o-rings Check and replace head valve piston o-rings
2 Failed to get driver(piston unit) back to the correct position completely. 1.The driver(piston unit) is not straight or the driver guide(nose) is wrong assembled. Straighten the driver(piston unit) or verify driver guide(nose) and magazine
2.Worn or damaged nozzle Check and replace nozzle
3.The space between piston o-ring and  cylinder is too tight. Check if the cylinder is adequate lubrication or replace the o-ring on the piston.
3 Work weakly and sluggishly 1. Worn or damaged  piston o-ring Check and replace piston o-ring
2.Inadequate lubrication for head valve piston o-rings or too tight head valve piston o-rings Place 2 or 6 drops of oil on o-rings or replace  head valve piston o-rings
3.Dirt in the nozzle Check and clean the nozzle
4 Tool jams frequently 1.Damaged or Worn driver (piston unit) Check and replace driver (piston unit)
2.Damaged or Worn driver guide (nose) Check and replace  driver guide (nose)
3.Driver guide cover is bent，so the space between driver guide cover and driver guide is too big Check and replace driver guide cover
5 Nail can not be shot 1. Driver (piston unit) can't return to the correct position Refer to No. 1 Symptom
2.Driver guide(nose) can not match magazine well Check and correct the position between driver guide(nose) and magazine
3.Worn or damaged nail pusher compression spring Check and replace nail pusher compression spring
Add:Economic Development Zone, Yueqing, Zhejiang Prov tel:86-577-62665788 62665858 62665777 Email:dongya@dongyagroup.com ICP:11062504-1
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