Dynabrade 53522 Anweisungen zu Sicherheit, Betrieb und Wartung - Seite 5

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mportant: Manufacturer's warranty is void if tool is disassembled before warranty expires. Please refer to parts complete tool

assembly for part identification.

Disconnect tool from power source before tool repair.

Extension Disassembly:

1. Remove accessory or abrasive product from the tool assembly.

2. Using 51989 Repair Collar (order separately) or padded vise, secure front end of Housing using machined flats on the silver ring.

3. Secure 93686 Adapter with wrench and remove 93687 Extension Housing (LEFT HAND THREAD) from Adapter (turn extension housing clockwise).

4. Secure 51969 Coupling Nut (using 9/16 deep hex socket) remove Threaded Adapter.

5. Secure 93687 Extension Housing, using wrench flats and remove 93689 Extension Cap using 96347 Adjustable Pin Wrench (order separately).

6. Pull Extension spindle and bearings from Extension Housing.

Gear Case Disassembly:

1. Remove 93686 Adapter from 53695 Planetary Retainer.

2. Slide Ring Gear from planet retainer and remove 04014 Set Screw.

3. Secure 53676 Carrier using 53698 Wrench (order separately) and remove 93696 Adapter from Carrier.

4. Press carrier from planetary retainer and press 53679 Shafts from carrier to remove gears.

5. Remove 96498 Wave Spring from carrier.

6. Slide 53620 Adapter and Press 54520 Bearing from carrier.

Motor Disassembly:

1. Pull motor assembly from housing assembly.

2. Remove governor assembly by using a slotted screw driver (LEFT HAND THREAD, turn clockwise).

3. Secure 51925 Cylinder using 96209 Repair Collar (order separately) and place a 1/8" (3 mm) drift pin to the base of the internal thread and press the

rotor from the 02057 Rear Bearing.

4. Slide 02057 Rear Bearing from 51923 Rear Bearing Plate.

5. Remove 51925 Cylinder and 51926 Blades.

6. Press rotor through 54520 Bearing, 51922 Front Bearing Plate and 51927 Rotor Spacer.

7. Slide 54520 Bearing and shims from 51922 Front Bearing Plate.

Motor Disassembly Complete.

Housing Disassembly:

1. Secure housing using 51989 Repair Collar ( see back cover for Optional Accessories ).

2. Remove inlet bushing with muffler assembly (turn counterclockwise).

3. Remove 53682 Gasket, 51943 Spring, 96442 O-Ring, 51940 Spacer, 94528 Felt Silencer, 53686 Muffler Cap, 94924 Wave Spring and 53683 Spacer

from 53681 Inlet Bushing.

4. Remove 51944 Tip Valve and 51945 Valve Seat.

5. Remove housing and 51989 Repair Collar and lay collar on bench with flange facing down so it is supporting throttle lever. Place a 3/32" (2.4 mm)

drift pin on 96444 Pin and tap pin thru housing.

6. Remove 51946 Valve Stem Assembly.

7. Remove 96443 O-Ring from 51946 Valve Stem Assembly.

Housing Disassembly Complete.

Motor Assembly:

Important: Be sure parts are clean and in good repair before assembling. Follow grease, oil and torque specifications.

1. Place rotor into padded vise with spline facing upwards.

2. Slip 51927 Rotor Spacer over rotor shaft and down against rotor body face.

3. Press 96441 Coiled Pin into 51922 Front Bearing Plate. Make certain, coiled pin does not protrude beyond

internal bearing surface.

4. Place a .002" shim into the base of 51922 Front Bearing Plate as an initial spacing and slide 54520 Bearing to the front plate base.

Note: 51951 Shim Pack contains .001" and .002" shims.

5. Press bearing/bearing plate assembly onto rotor, using 96244 Bearing Press Tool (order separately) .

6. Check clearance between rotor and front bearing plate by using a .001" feeler gauge. Clarence should be between .001" – .0015".

Adjust clearance by repeating steps 4 and 5 with different shims if necessary.

7. Once proper rotor gap clarence is achieved, install well lubricated 51926 Blades (4) into rotor slots. Dynabrade recommends lubricating blades

with 95842 Air Lube.

8. Install 51925 Cylinder over rotor and front plate raised boss. Align coiled pin on front to cylinder slot.

9. Press 96441 Coiled Pin into blind hole on 51923 Rear Bearing Plate. Press (2) 96445 Coiled Pins into the back side of

rear bearing plate.

10. Peel backing off 51924 Gasket and apply it firmly in place onto 51923 Rear Bearing Plate.

11. Place 51923 Rear Bearing Plate over rotor mandrel and insert raised boss on rear bearing plate into cylinder diameter, while inserting

short coiled pin into cylinder slot. Be sure inlet slot on rear bearing plate line up with inlet slot on cylinder. Flip cylinder end to end and

repeat step 8 for correct assembly.

Disassembly Instructions

Assembly Instructions

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