•
operation of the machine with defect safety devices or improperly fixed or non•functioning
safety and protection devices,
•
not considering of the instructions in the operating instruction booklet concerning transport,
storage, assembly, startup, operation, maintenance and setting up of the machine,
independent structural alterations or settings on the machine beyond the intended purpose,
•
inadequate supervision of wear parts,
•
improperly carried out repairs, inspections or maintenance,
•
catastrophic cases due to foreign objects, acts of god or other reasons which are beyond our
control.
Disassembly
Disassembly and re-assembly should be done according to the sectional drawing only.
Observe the safety instructions of the operation and maintenance manual.
Disassemble into main components 1. Handle, 2. Motor, 3. Gearbox Remove complete
handle after loosening screw item 31.
Remove screws item 441 and separate gearbox from motor. Continue disassembling.
1. Handle
Remove quick coupling or reducing nipple from connecting nipple item 29. Take connecting
nipple out of handle item 22.
Remove pressure spring item 28, steel ball item 27 and valve pin item 25. Seal item 26 is
lightly stuck on and will be replaced only when necessary.
Knock out the double-notched pin item 24 and pull out the valve trigger item 23. Unscrew
complete valve trigger locking assembly items 40-43.
2. Motor
After loosening the socket head screws item 20 from the motor housing item 1, remove the
motor cover item 19. Pull out all motor parts and continue disassembling. If necessary, pull off
the rotary sleeve item 5 from motor housing item 1 and take out sound absorbing material item 4.
3. Gearbox
Unscrew complete water connection item 210-218. Loosen screws item 429 and pull gear
head item 401 from intermediate housing item 417. If necessary, disassemble inner gear parts.
After removing the snap ring item 433, the switch lever item 431 can be pulled off. Loosen snap
ring item 427, pull off spur wheel item 406 and wheel item 405. Remove steel ball item 418,
pressure spring item 419 and feather key item 426 from output shaft item 402. Remove snap
ring item 425 and spur gear item 404.Loosen snap ring item 421 from the gear head item 401
and pull out output shaft item 402.
Remove intermediate disc item 422 and snap ring item 423 and pull off grooved ball bearing
item 420. Press shaft sealing rings item 435 and item 436 out of the gear head.
After removing the snap ring item 437, pull countershaft, assy. item 403, 407-414 and 416
out of the intermediate housing item 417. If the spur gear item 407 has to be replaced, loosen
REPAIR AND SPARE PARTS LIST
REPAIR
47