Dynabrade 51395 Manuel - Sayfa 5

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Dynabrade 51395 Manuel
Disassembly Instructions - 1hp Right-Angle Buffer/Polisher
Important: Manufacturer's warranty is void if tool is disassembled before warranty expires.
Disconnect tool from power source before tool repair.
Right Angle Head Disassembly:
1. Remove side handle and polishing pad.
2. Secure 53600 Right Angle Housing, against both side handle bosses, in a padded vise with spindle facing upward.
3. Using 97782 Pin Wrench ( ordered separately ) or an adjustable pin wrench, remove 50963 Retainer. (Left Hand Threads)
4. Remove 50899 Shaft Seal from retainer.
5. Pull spindle and gear assembly from housing.
6. Press spindle through 97679 Bearing and spiral bevel gear.
7. Remove shims and 53608 Wick from right angle housing.
8. Remove 53650 Lock Ring from right angle housing (Left Hand Threads) and from 53695 Gear Casing (Right Hand Threads). Note: For 4,500 RPM models, remove
lock ring from motor housing (Right Hand Threads).
9. Remove angle head from vise and remove 96325 Bearing by pressing 53649 Gear Oil Plate through housing.
10. Pull pinion gear, bearing and coupler sub-assembly from angle housing.
11. Secure gear, bearing and coupler sub-assembly by the pinion gear wrench flats and remove the 51935 Flexible Coupler (twist counterclockwise).
12. Secure 53635 Adapter using an allen wrench and remove pinion gear (twist counterclockwise).
13. Press 53635 Adapter through 01266 Bearing.
Note: For 4,500 RPM models, omit steps 14 through 17.
14. Remove 04014 Set Screw from 53695 Gear Casing and remove gear casing (Right Hand Thread) from motor housing.
15. Slide 53665 Ring Gear from gear casing.
16. Secure planetary carrier using 53698 Wrench ( ordered separately ) and remove 51935 Coupling (twist counterclockwise).
17. Press planetary carrier thread end through 54520 Bearing.
18. Remove 96498 Wave Spring.
19. Press 53679 Pins from carrier to remove gears.
Right Angle Head Disassembly Complete.
Motor Disassembly:
1. Remove 53651 Spacer and 96498 Wave Spring from housing assembly.
2. Pull motor assembly from housing.
3. Remove 53620 Motor Adapter with 95438 O-Ring. Note: Step 3 applies to 4,500 RPM models only.
4. Remove governor assembly by using a slotted screwdriver. (Left Hand Thread)
5. Secure 51925 Cylinder using 96209 Motor Repair Clamp ( ordered separately ) and place a 1/8" (3 mm) drift pin to the base of the terminal thread and press 51921 Rotor
from the 02057 Rear Bearing.
6. Slide 02057 Rear Bearing from 51923 Rear Bearing Plate.
7. Remove 51925 Cylinder and 51926 Blades.
8. Secure 51921 Rotor in a padded vise and remove 51935 Extension Coupler (twist counterclockwise). Note: Steps 8 applies to 4,500 RPM models only.
9. Press rotor through 54520 Bearing, 51922 Front Bearing Plate and 51927 Rotor Spacer.
10. 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 (twist 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" (3 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.
Assembly Instructions - 1hp Right-Angle Buffer/Polisher
Motor Assembly:
Important: Be sure parts are clean and in good repair before assembling. Follow grease, oil and torque specifications.
1. Place rotor into a padded vise with gear teeth or male thread 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. Slip bearing/bearing plate assembly onto rotor. Add one drop of Loctite
17 N•m 150 lb.-in.). Note: Step 5 applies to 4,500 RPM models only, omit step 6.
6. Press Bearing/Bearing Plate assembly onto rotor.
7. Check clarence between rotor and front bearing plate by using a .001" feeler gauge. Clarence should be between .001" – .0015". Adjust clarence by repeating steps 4,5
and 6 with different shims if necessary.
8. Once proper rotor gap clarence is achieved, install well lubricated 51926 Blades (4) into rotor slots. Dynabrade recommends lubricating blades with 95842 Air Lube.
9. Install 51925 Cylinder over rotor and front plate raised boss. Align coiled pin on front plate to cylinder slot.
10. 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.
11. Peel backing off 51924 Gasket and apply it firmly in place onto 51923 Rear Bearing Plate.
12. 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 lines up with inlet slot on cylinder. To correct alignment flip cylinder end to end and repeat step 9 for correct assembly.
13. Using 96243 Bearing Press Tool ( ordered separately ) press 02057 Bearing onto rotor and into 51923 Rear Bearing Plate hole until it is seated. Important: Cylinder must
fit snug between bearing plates. If too tight, rotor will not turn freely. Rotor must be lightly tapped at press fit end until rotor spins freely while still maintaining a snug fit. A
loose fit will not achieve the proper preload on motor. While pressing 02057 Bearing, make certain to contact inner race of bearing.
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#243 (or equiv.) to 51921 Rotor 3/8-24 male thread and screw 51935 Coupler into place (Torque to
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