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For Serial No. 2L2948 and Higher
Models:
57902 — 13,000 RPM, Wet Dynafine
Always operate, inspect and maintain this tool in accordance with the Safety Code for portable air tools (ANSI B186.1) and any other applicable safety codes
WARNING
!
and regulations. Please refer to Dynabrade's Warning/Safety Operating Instructions for more complete safety information.
Index Key
No. Part # Description
1 97328 Screw (2)
24 01448 Throttle Lever
01462 Safety Lock Lever
2 58030 2" Vinyl Face Pad
25 12132 Pin
3 11016 Bearing
26 57936 Housing
4 57975 Boot Assembly
27 01449 Valve Stem
5 97326 Boot Clamp
Assembly
28 95730 O-Ring
6 57961 Cam Assembly
29 01024 O-Ring
7 57962 Exhaust Cover
30 01469 Speed Regulator
8 56305 Bearing
31 01464 Seal
9 53161 Front Bearing Plate
32 01472 Tip Valve
10 50777 Rotor
33 01468 Spring
11 01480 Blades (4/pkg.)
34 96065 O-Ring
12 01476 Cylinder
35 57970 Air Control Ring
13 50767 Pin
36 95711 Retaining Ring
14 02673 Rear Bearing Plate
37 95438 O-Ring
15 02696 Bearing
38 94521 Muffler Base
16 02679 Shield
39 94528 Felt Muffler
17 57779 Housing
40 94522 Muffler Cap
18 01548 Gasket
41 95375 O-Ring
19 01461 Lock Nut
42 94526 Spacer
20 01558 Collar
43 94523 Inlet Adapter
21 95523 O-Ring
44 94519 Muffler Assembly
22 01470 Insert
45 94407 1/4" Flow Control
23 95558 Retaining Ring
O
Oil: O
= Air Lube
1
A
Loctite: A
= Loctite #609
1
A
= Loctite #271
2
A
= Loctite #567
8
Torque: N•m x 8.85 = In. - lbs.
T
G
Grease: G
1
®
17
16
A
8
Left Hand
Threads
Assembly
18
19
20
Right Hand
Threads
21
KEY
Wet Dynafine
= Lubriplate 630 AA
15
13
12
10
A
8
O
14
11
1
T
45 N•m
24
25
23
A
8
27
22
26
31
28
29
30
Air Motor and Machine Parts
28 N•m
T
7
0.7 N•m
T
5
G
1
A
T
17 N•m
9
8
6
2
57777 Wet Assembly On Page 4.
33
34
35
32
36
37
38
39
Parts Page Reorder No. PD03•31
Effective September, 2003
Supersedes PD02•20T
®
Sander
A
3
2
1
1
4
O
1
45
A
8
T
23 N•m
40
41
42
43
44
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Summary of Contents for Dynabrade Dynafine 57902
- Page 1 Always operate, inspect and maintain this tool in accordance with the Safety Code for portable air tools (ANSI B186.1) and any other applicable safety codes WARNING and regulations. Please refer to Dynabrade’s Warning/Safety Operating Instructions for more complete safety information. Index Key 28 N•m...
-
Page 2: Operating Instructions
Notice All Dynabrade motors use the highest quality parts and metals available and are machined to exacting tolerances. The failure of quality pneumatic motors can most often be traced to an unclean air supply or the lack of lubrication. Air pressure easily forces dirt or water contained in the air supply into motor bearings causing early failure. It often scores the cylinder walls and the rotor blades resulting in limited efficiency and power. - Page 3 7. Apply a small amount of #271 Loctite (or equivalent) to the threads of the 57961 Cam Assembly and install it onto the rotor , torque to 17 N•m/150 in.-lbs. 8. Remove this assembly from the vise and install 01480 Vanes that have been lubricated with Dynabrade Air Lube (10W/NR) or (equivalent oil).
-
Page 4: Optional Accessories
Motor should now be tested for proper operation at 90 PSIG. If motor does not operate properly or operates at a higher RPM than marked on the tool, the tool should be serviced to correct the cause before use. Before operating, place 2-3 drops of Dynabrade Air Lube (P/N 95842) directly into air inlet with throttle lever depressed.
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