Dynabrade 50371 Belangrijke bedienings-, onderhouds- en veiligheidsinstructies - Pagina 3

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Ook voor Dynabrade 50371: Belangrijke bedienings-, onderhouds- en veiligheidsinstructies (4 pagina's)

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Important: Manufacturer's warranty is void if tool is disassembled before warranty expires.
Notice: Dynabrade strongly recommends the use of their 52296 Repair Collar (sold separately) during assembly/disassembly activities. Failure to
use this collar will highly increase the risk of damage to the valve body of this tool. Please refer to parts breakdown for part identification.
Angle-head Disassembly:
1. Disconnect tool from power source. Remove abrasives from tool.
2. Insert tool into padded vise with spindle facing upward.
3. Remove 50384 Spindle Bearing Cover with a pin wrench (left hands threads).
4. Pull spindle assembly from housing.
5. Remove 52089 Washer, 52088 Spacer and 52120 Shim from spindle assembly.
6. Grip onto bevel gear and remove spindle nut (right hand threads). Remove 50412 Felt Ring and 50431 Bearing.
7. Press gear from spindle.
8. Press 50424 Bearing Washer and 12152 Bearing from angle housing by using a push pin thru access hole in top of angle housing.
9. Remove 50511 Screws (2) from housing and 07149 Clamp. Disassemble muffler assembly.
10. Reposition angle housing in vise so motor housing is facing upwards.
11. Slide back 50383 Collar to expose 50381 Lock Nut.
12. Loosen lock nut from angle housing (left hand threads).
13. Separate 01295 Valve Body/Motor Housing from angle housing.
Motor Disassembly:
1. Remove 50381 Lock Nut from 01295 Valve Body/Motor Housing (right hand threads).
2. Pull motor assembly from valve body.
3. Press 50379 Rotor from 02649 Rear Bearing and 01722 Rear Bearing Plate.
4. Remove cylinder and blades.
5. Clamp 50379 Rotor in padded vise with 50363 Pinion facing up and unscrew pinion from rotor.
6. Remove 50332 Pinion Spacer, 01007 Bearings (2), 50368 Bearing Plate and 01010 Spacer from rotor.
Valve Body Disassembly:
1. Position valve body in padded vise with air inlet facing up.
2. Remove air fitting by securing 01494 Inlet Adapter with a wrench and twist air fitting from inlet adapter.
Important: 01494 Inlet Adapter must be secured before attempting to remove air fitting to avoid damaging valve body housing.
3. Remove 53190 Block Plate and 95375 O-ring.
4. Using needle nose pliers, remove 01468 Spring, 01472 Tip Valve and seal.
5. Using a 2.5mm drift pin, tap 01017 Pin from housing and remove throttle lever.
6. Remove 95558 Retaining Ring using retaining ring pliers.
7. Push 01247 Regulator from valve body housing and remove o-rings.
Disassembly complete.
Valve Body Reassembly:
1. Insert 01247 Speed Regulator Assembly with O-rings into valve body. Secure with 95558 Retaining Ring.
2. Secure valve body in padde vise with air inlet facing upwards.
3. Insert 01464 Seal into housing.
4. Line up hole in valve stem with hole in housing (looking past brass bushing). Insert 01472 Tip Valve so that the metal pin passes through the hole in the
valve stem. Install 01468 Spring (small end towards tip valve).
5. Lubricate 95375 O-ring with a slight amount of air-tool oil and install into 53190 Block Plate.
6. Install 53190 Block Plate (O-ring side first) into housing.
7. Apply Hernon #940 PST Pipe Sealant to threads of 01494 Inlet Adapter and install valve body (torque 34 N•m/200 in. - lbs.).
8. Install 57334 Throttle Lever and 01017 Pin.
Motor Reassembly:
1. Place 50379 Rotor in padded vise with threaded spindle facing upward.
2. Slip 01010 Spacer onto rotor shaft.
3. Place a .002" Shim into 50368 Bearing Plate as an initial spacing (Note: 01121 Shim Pack contains .001" and .002" Shims). Slip 01007 Bearings (2)
into bearing plate.
4. Slip bearings and bearing plate onto rotor shaft. Place 50332 Pinion Spacer onto outer race of bearing.
5. Tighten pinion thru pinion spacer onto rotor shaft (torque 17 N•m/150 in. - lbs.).
6. Check clearance between rotor and bearing plate using a .001" feeler gauge. Clearance should be at .001" to .0015". Adjust clearance by repeating steps
1-5 with different shims if necessary. Remove rotor from vise.
7. Once proper rotor gap clearance is achieved, install well lubricated 01185 Blades (4) into rotor slots. Dynabrade recommends using their 95842
Dynabrade Air Lube.
8. Install cylinder over rotor. Be sure air inlet holes of cylinder face away from 50368 Bearing Plate.
Disassembly/Assembly Instructions
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