01986 Motor Assembly
35
01469
Speed Regulator Assy.
36
01464
Seal
37
01472
Tip Valve
38
01468
Spring
39
01564
Air Control Ring
40
95711
Retaining Ring
41
95438
O-Ring
42
94521
Muffler Base
43
94524
Sintered Muffler
44
94525
Felt Muffler
45
94522
Muffler Cap
46
95375
O-Ring
47
94526
Spacer
48
94523
Inlet Adapter
49
94520
Muffler Assembly
18
02696
Bearing
19
02679
Shield
20
01041
Grease Fitting
21
50784
Set Screw
22
50776
Motor Housing
23
01548
Gasket
24
01461
Lock Nut
25
01558
Collar
26
95523
O-Ring
27
01470
Insert
28
12132
Pin
29
01448
Throttle Lever
30
95558
Retaining Ring
31
02115
Housing -
13300
32
01449
Valve Stem
33
95730
O-Ring
34
01024
O-Ring
2
1
50781
Rear Exhaust Cover
2
50782
Adapter
3
54552
Bearing (2)
4
54472
Gear Shaft (2)
5
54519
3,200 RPM Gear (2)
6
50786
Planetary Carrier
7
54468
Ring Gear
8
50778
Spacer
9
02649
Bearing
10
54529
O-Ring
11
01478
Front End Plate
12
50676
Pin (2)
13
01479
Spacer
14
54554
Rotor
15
01480
Blade (4/pkg.)
16
01476
Cylinder
17
02673
Rear Bearing Plate
Index Key
No. Part # Description
3
4
6
7
3
8
9
12
13
11
10
14
16
12
17
22
18
19
23
24
25
26
27
31
32
33
34
35
49
48
47
46
45
44
43
42
41
40
39
38
37
36
28
29
30
A
8
O
1
G
1
G
1
A
8
O
1
A
8
A
8
Right Hand
Threads
Left Hand
Threads
Disassembly/Assembly Instructions - .4 Hp/7°/Rear Exhaust
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.
Motor Disassembly:
1.
Disconnect tool from power source. Remove pneumatic wheel or accessory from spindle.
2.
Loosen
01678
Lock Screw and remove handle assembly. Remove
53154
Spindle from motor shaft.
3.
Secure motor housing using
52296
Repair Collar in vise with motor spindle facing upwards. Using an adjustable pin wrench, or
50971
Lock Ring Tool remove exhaust cover.
4.
Remove
50784
Set Screw and pull
50782
Adapter and planetary carrier assembly from
50776
Housing.
5.
Press planetary carrier assembly from rear
54552
Bearing. Remove ring gear and gears from
50780
Planetary Carrier.
6.
Secure planetary carrier in soft vise (bronze or aluminum) jaw and remove
50782
Adapter. Press carrier from front
54552
Bearing.
7.
Pull on the pinion gear of the
54554
Rotor and remove the air motor assembly from the
01488
Housing.
8.
Fasten the
96346
Bearing Separator around the rear portion of the cylinder and place the separator on the table of the
96232
Arbor Press with the pinion gear pointing towards the
floor. Press on the rear shaft of the rotor with flat nose 3/16 in. diameter punch, as a press tool, and remove it from the
02696
Bearing. The vanes can now be removed.
9.
Place the flat side of the of the
01478
Front Bearing Plate on the
96231
Tool Plate of the arbor press and push the pinion end of the
54554
Rotor from the
02694
Bearing.
The
02649
Bearing can be pushed out of the front bearing plate allowing the removal of the
54529
Shims. The
01479
Spacer can be slipped off the rotor.
10.
Remove the
02696
Bearing from the
02673
Rear Bearing Plate with the
96210
Bearing Removal Tool.
Motor Disassembly Complete.
17 N•m
28 N•m
T
23 N•m
T
45 N•m
T
21
20
15
2
A
2
T
1
Adhesive:
A
2
= Loctite #271
A
8
= Loctite #567
Torque:
N•m x 8.85 = In. - lbs.
Oil:
O
1
= Air Lube
O
A
T
KEY
G
Grease:
G
1
= Lubriplate 630 AA
5