10
Disassembly and Reassembly of the Gear Section
(cont.)
UOW-T60 Gear Section
Disassembly
Note:
The UOW-T60 has gearings both before and after the 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 Set of Gearing
1.
Remove the gear casing from the hammer casing nut.
2.
Remove the gear cage and planet gear from the internal gear.
3.
Remove the bearing from the gear casing.
4.
Clean all parts thoroughly.
Inspection
1.
Gears:
Inspect the teeth of the gear casing and planet gears for pitting and grooving.
2.
Needle Rollers:
Inspect the needle rollers for wear.
3.
Bearings:
Inspect the bearing for side play and knocking.
4.
Replace all worn parts.
Assembly
Note:
Assembly is the same on both gear assemblies.
1.
Install the bearing into the gear cage.
2.
Install the gear cage into the gear casing.
3.
Install the needle roller and planet gears into the gear casing. Put a small amount of grease by each
planet gear and on the gear cage.
4.
On the first gear assembly, install the rotor gear onto the rotor. On the second gear assembly, install
the second middle gear and gear cage spacer onto the cam guide.
5.
Install the gear casing assembly onto the tool and test.
