Dynabrade 56743 Panduan Keselamatan, Pengoperasian, dan Pemeliharaan - Halaman 5
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Disassembly Instructions - 1 hp Vacuum Die Grinders
Disassembly/Assembly Instructions - 1Hp/Straightline/ Rear Exhaust/Vacuum Die Grinders.
Important: The Dynabrade Pneumatic Power Tool Lifetime Warranty Policy does NOT cover normally wearable parts and products. Before servicing
this tool please contact Dynabrade Inc. or a Dynabrade Subsidiary for information regarding the Dynabrade Pneumatic Power Tool Lifetime
Warranty Policy. Notice: Special repair tooling referred to in these instructions can be ordered from Dynabrade. (See Page 8)
Disconnect the die grinder from the air supply.
Motor Disassembly:
1. Loosen the clamp and remove the shroud.
2. Remove 50012 Collet Cap and collet insert.
3. Secure front end of housing in a soft (aluminum or bronze jaw) vise, align the vise jaws with machined flat on the silver ring.
4. Using 50971 Pin Wrench ( order separately ) or an adjustable pin wrench, remove 51961 Housing Cover.
5. Remove remaining assembly from vise.
6. Remove 96498 Wave Spring.
7. Pull Motor Assembly from housing assembly, and remove 53620 Motor Adapter with 95438 O-Ring.
8. Remove Governor Assembly by using a slotted screw driver. (LEFT HAND thread)
9. Secure 51925 Cylinder and place a 1/8" (3mm) drift pin to the base of the internal thread and press the 51921 Rotor from the 02057 Rear Bearing.
10. Slide 02057 Rear Bearing from 51923 Rear Bearing Plate.
11. Remove 51925 Cylinder and 51926 Blades.
12. Secure 51921 Rotor in a soft (aluminum or bronze jaw) vise and remove 50011 Collet Body (twist counterclockwise).
13. Slide 51922 Front Bearing Plate and 51927 Rotor Spacer from 51921 Rotor.
14. Slide 54520 Bearing and shims from 51922 Front Bearing Plate.
Motor Disassembly Complete.
Housing Disassembly:
1. Secure housing using 51989 Repair Collar ( order separately–see back cover for Optional Accessories ).
2. Remove 53681 Inlet Bushing (twist counterclockwise).
3. Remove 51944 Tip Valve and 51945 Valve Seat.
Disassembly Complete.
Assembly Instructions - 1 hp Vacuum Die Grinders
Motor Assembly:
Important: Be sure parts are clean and in good repair before assembling. Follow grease, oil and torque specifications.
1. Place 51921 Rotor into a padded vise with 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, torque 50011 Collet Body onto rotor shaft to 17 N•m (150 lb.-in.).
6. Check clearance between rotor and front bearing plate by using a .001" feeler gauge. Clearance should be between .001" - .0015". Adjust clearance by
repeating steps 4 and 5 with different shims if necessary.
7. Once proper rotor gap clearance is achieved, install well lubricated 51926 Blades (4) into rotor slots. Dynabrade recommends lubricating blades with
95842 Air Lube. Important: Make certain beveled edge of blade follows rotor outside diameter.
8. Install 51925 Cylinder over rotor and front plate raised boss. Align coiled pin on front plate 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 align 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.
12. Press 02057 Bearing onto rotor and into 51923 Rear Bearing Plate hole until it is seated. Important: While pressing 02057 Bearing, make certain to
contact inner race of bearing. 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 bearings.
13. Add one drop of Loctite
®
243 (or equiv.) to governor assembly male thread and screw governor assembly into place (LEFT HAND thread) with a slotted
screw head. Torque to 2 N•m (18 lb.-in.).
14. Install motor assembly into housing, making sure motor drops all the way into housing. Note: Align both 96445 Coiled Pins to slots in insert and against
51924 Gasket.
15. Install 95438 O-Ring onto 53620 Adapter and slide adapter into housing and over 54520 Bearing.
16. Place 96498 Wave Washer onto 53620 Adapter.
17. Apply a small amount of Loctite
adjustable pin wrench. Torque cover to 35 N•m (310 lb.-in.).
18. Install collet insert and 50012 Collet Cap.
19. Install the shroud and secure it with the clamp.
Motor Assembly Complete.
®
567 to housing thread, and install 51961 Housing Cover using 50971 Pin Wrench ( ordered separately ) or an
(continued on next page)
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