Hummer H1 Service Manual page 331

5-132 Transmission/Transfer Case
4. Remove the discharge hose, reconnect the cooler feed and
return pipes to the transmission and refill the unit to the
proper level. Inspect the transmission oil cooler pipe
connections at the radiator and transmission for leaks.
Cleanup
1. Disconnect the water supply hose from J–35944-A and
bleed any remaining air pressure from the can. Remove the
fill cap from J–35944-A and return any unused flushing
solution to its container. Rinse J-35944-A with water. Do
not store J–35944-A with flushing solution in it.
2. After every third use, clean J–35944-A as described in the
instructions included with the tool.
3. Dispose of any waste water/solution/transmission fluid in
accordance with local regulations.
Transmission Fluid And Filter Replacement
1. Support transmission/transfer case assembly with jack
positioned under transfer case.
2. Remove bolts attaching rear mount to transmission
(Figure 5-28).
3. Remove bolts attaching crossmember to frame brackets
and remove crossmember.
FRAME
BRACKET
Figure 5-28: Transmission-to-Crossmember
Mounting
4. Loosen transmission oil pan bolts and allow fluid to drain.
5. Move shift rod bracket aside and remove pan gasket, and
oil pan (Figure 5-29). Pan gasket is reusable.
6. Remove oil filter from valve body (Figure 5-30).
7. Inspect filter seal (Figure 5-30). Undamaged seal is re-
usable.
8. Remove magnet from oil pan. Then clean pan and magnet.
9. Install seal in valve body.
ADAPTER
REAR
MOUNT
___________________________________________
10. Insert filter pipe in case with twisting motion. Align filter
with valve body and work into place (Figure 5-30).
11. Position magnet in oil pan.
12. Install gasket on oil pan and install pan on transmission.
Tighten pan bolts to 18 lb-ft (24 N•m) torque.
13. Install rear crossmember and transmission mount.
14. Remove support jack.
15. Refill transmission with Dexron III fluid.
OIL PAN
MAGNET
SHIFT ROD
BRACKET
Figure 5-29: Oil Pan Removal/Installation
FILTER
PIPE
Figure 5-30: Oil Filter Removal/Installation
TRANSMISSION
OIL PAN
VALVE BODY
INLET PORT
SEAL
OIL FILTER
®
PAN
GASKET