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Disassembly
Disassembly and re-assembly should be done according to the sectional drawing only.
Observe the safety instructions of the operation and maintenance manual.
Replace wear parts – in particular the vanes – in due time. Vanes are considered to be worn
when the width is less than 16 mm.
Disassembly and Re-assembly
Refer to the sectional drawing and spare parts list when disassembling and re-assembling.
Disassembly:
Disassemble into main components: 1. Motor, 2. Gearbox Separate gearbox from motor after loosening
screws item 441. Continue to disassemble.
Motor
Remove motor cover item 19 after loosening screws item 21 with air guide item 20 from motor housing
item 1. Remove sleeve item 36 with pinion item 51 if they are still sitting on the shaft butt of rotor item 13.
Loosen screws item 34 and take bearing housing item 33 with bearing item 35 out of motor housing.
Remove feather key item 32. Pull out inner motor parts and carry on disassembling. If necessary, draw
off rotary sleeve item 5 from motor housing item 1 and take out sound absorber item 4.
Gearbox
Unscrew complete water connection items 210-218. Loosen screws item 429 and remove gearbox
head item 401 from intermediate housing item 417. If necessary, disassemble inner gearbox parts. After
removing snap ring item 433 draw off control lever item 431. Take off snap ring item 427 and draw off
spur gear item 406 and notched wheel item 405. Take steel ball item 418, pressure spring item 419 and
feather key item 426 out of output shaft item 402. Remove snap ring item 425 and draw off spur gear
item 404. Loosen snap ring item 421 from gearbox head item 401 and pull out output shaft item 402.
Take out intermediate washer item 422, remove snap ring item 423 and draw off grooved ball bearing
item 420. Press out shaft seals items 435 and 436 of gearbox head. Draw assembled countershaft item
403 - 416 out of intermediate housing item 417 after removing snap ring item 437. If spur gear item 407
has to be exchanged, loosen nut item 410. After that remove cup springs item 409, pressure disc with
bore hole item 411 and spur gear item 407. After removing thrust washer item 408 and snap ring item
413 the grooved ball bearing item 412 can be drawn from the seat.
Pay attention to torque adjustment!
If necessary, pull needle bearings items 415 out of items 401 and 417.
FREPAIR AND SPARE PARTS LIST
REPAIR
Installation new 17,5 mm
replace < 16 mm
45
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