Aimco Brakes Nutrunner UOW Series Repair Manual

- 8   -Disassembly and Reassembly of the Gear Section   (cont.)  
UOW - 11 Gear Section  
Part 
Number   Description   Part 
Number   Description  
1  
2  
3  
4  
5  
6   Gear Casing  
Bearing  
Spacer  
First Gear Cage  
Pl anet Gear  
Spacer   7  
8  
9  
10  
11  
12   Bearing  
Second Gear Cage  
Planet Gear  
Needle Roller  
Needle Roller  
Spacer   

- 9   -Disassembly and Reassembly of the Gear Section   (cont.)  
UOW - T60 Gear Section  
Disassembly  
Note :    The UOW - T60 has gearings both before and after th e clutch.  
1. Remove the hammer casing connector from the air motor casing.
2. Remove the gear from the rotor.
3. Remove the gear cage and planet gear from the internal gear.
4. Remove the bearing from the internal gear.
5. Clean all parts thoroughly
Second  S et of  G earing  
1. Remove the gear casing from the hammer casing nut.
2....

- 10   -Disassembly and Reassembly of the Gear Section   (cont.)  
UOW - T60 Gear S ection  
Part 
Number   Description   Part 
Number   Description  
1  
2  
3  
4  
5  
6   Gear Casing  
Bearing  
Needle Roller  
Planet Gear  
Spacer  
Second Internal Gear   7  
8  
9  
10  
11   Hammer Casing Nut  
Hammer Casing Connector  
First Internal Gear  
First Gear Cage  
Second Gea r Cage   

- 11   -Disassembly and Reassembly of  Bevel Gear Casing Assembly  
Pinion and Bevel Gear Section  
Disassembly  
1. Remove the bevel gear casing from the gear casing.
2. Remove the clamp ring (left - hand thread) and slide the pinion gear and bearing out of the ho using.
3. Remove the four flush head screws from the bevel gear casing cover and remove the cover.
4. Remove the driven gear spindle assembly from the housing.
5. Press the bearing and bevel gear off of the driven gear spindle.
6. Clean parts...

- 12   -Disassembly and Reassembly of  Bevel Gear Casing Assembly   (cont.)
Socket and Gearing Section  
Disassembly  
1. Remove the flush head screws holding down the cove r plate.
2. Remove the cover plate.
3. Remove the gears, socket, and needle roller.
4. Remove the spring, checker, and notch pin.
5. Clean parts thoroughly.
Inspection  
1. Gears :    Inspect gears for pitting and grooving.
2. Needle Bearings :    Inspect the needle bearings   in gears for loose and/or missing needles.
3. Needle...

- 13   -Disassembly and Reassembly of  Bev el Gear Casing Assembly   (cont.)
UOW Bevel Gear Casing  
Part 
Number   Description   Part 
Number   Description  
1  
2  
3  
4  
5  
6  
7  
8  
9  
10  
11  
12  
13  
14  
15  
16  
17   Bearing  
Driven Gear  
Key  
Flush Head Screw  
Spur Gear  
Ratchet Gear  
Needle Roller Bearing  
Needle Rolle r  
Socket  
Spur Gear  
Gear Casing Cover  
Flush Head Screw  
Needle Roller  
Needle Roller  
Needle Roller  
Needle Roller Bearing  
Needle Roller   18  
19...

- 14   -Troubleshooting  
UOW - T60  
TROUBLE   CAUSE   SOLUTION  
Tool operates intermittently   One or   more of the shoulders 
on the pilot pin is rounded   Replace pilot pin  
Tool shuts off as soon as it is 
started, or tool shuts off but 
will not restart   Spring un der pilot pin has lost 
tension;  notch pin is rounded.    Replace notch pin, band and/or 
pilot pin.  Replace spring  
Band spring is stretched out of 
shape.  
The shoulders on pilot pin are 
rounded  
Loss of RPM   Exhaust filter is...

Notes:  

Notes:  

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LIT - MAN470  
Rev. 
03/2016  Printed in USA  
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