P 11/20
Repair
[3]DISASSEMBLY/ASSEMBLY
[3]-5. Air Motor Section
ASSEMBLING
2)Assemble Upper drum cap to Drum as described in Fig. 20.
Fig. 20
Assemble Spring pin | Visually check if Upper drum cap is properly set on Drum. |
Then set Upper drum cap on Drum, | If properly set, two holes of Drum can be seen through the |
with Spring pin | |
corresponding insertion hole of Upper drum cap. |
|
|
Spring pin
Upper | Upper |
drum cap | drum cap |
Drum
Drum
[Top view]
two holes
3)Assemble Lower drum cap to Drum as described in Fig. 21.
Fig. 21
1.Assemble Ball bearing 689ZZ to Lower drum cap using 1R027 and arbor press.
Set Drum on Lower drum cap, with Spring pin
1R027 | Drum |
|
Ball bearing 689ZZ
Lower drum cap
2.Support Drum with 1R027 at the Ball bearing 689ZZ of Lower drum cap. Then apply another 1R027 to the Ball bearing 689ZZ in Upper drum cap, and firmly assemble Upper drum cap and Lower drum cap to Drum by pressing down Upper drum cap and Drum using arbor press until they stop.
1R027
Upper drum cap
1R027
3.Assemble Spur gear 21 to the hexagonal end of Rotor shaft protruding from Lower drum cap.
4.Assemble Internal spur gear section to Air motor section, with the ribs of Internal spur gear 44 fitting in the cut portion of Lower drum cap.
Spur gear 21
Lower 
drum cap
Upper 
drum cap
| Lower drum cap |
|
Air motor | cut portion |
|
|
| |
section |
|
|
|
| ribs with larger |
| Flat washer 15 | intervening width |
| Internal spur gear 44 | |
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