TM 5-3895-346-14
SHOP NOTES
ENGINE OVERHAUL
reworked spacer should be mated with the fan hub assembly. If a former thin spacer (0.500-inch thick) is used
in conjunction with the reworked thick spacer, it should be positioned against the fan.
NOTE
The 0.500-inch thick spacer cannot be reworked into the new O.560-inch thick
spacer.
A grease fitting may be added to former fan hub assemblies used on vehicle engines to permit periodic
lubrication of the bearings.
Rework the fan hub as follows:
1.
Refer to Engine Cooling Fan and disassemble the fan hub assembly, and clean the parts
thoroughly.
2.
Drill and tap the fan hub, at the location shown in Fig. 1, to accept a 1/8 PTF x 11/16 inch threaded
lubricator fitting. Clean the hub to remove any metal chips.
3.
Refer to Engine Cooling Fan and reassemble the fan hub. Discard the
4.
Install a new fan hubcap which is threaded for a relief valve (Fig. 1).
5.
Install a grease fitting in the fan hub and a relief valve in the fan hubcap. Refer to Preventive
Maintenance for the maintenance schedule.
Figure 2 . Location of Fan Hub Grease Fitting and Relief Valve
358
