10-8. CAB DEFOGGER FANS MAINTENANCE
This task covers removal, disassembly, cleaning,
inspection, reassembly, and in -
stallation of the cab defogger fan .
TOOLS: No. 1 Common Organizational Maintenance Tool Kit
Fixed open end wrench set
Socket wrench set, 3/8 inch drive
Socket head screw key set
E l e c t r i c a l r e p a i r t o o l k it
Soldering iron (25 watts)
MATERIALS/PARTS: Clean cloths (Appendix C, item 1)
Cleaning solvent P-D-680 (Appendix C, item 2)
Detergent (Appendix C, item 3)
Insulation tape (Appendix C, item 5)
Adhesive (Appendix C, item 8)
Isopropyl alcohol (Appendix C, item 15)
PRELIMINARY PROCEDURE: Battery ground cable disconnected (page 5-148).
Pull back cab foam (1) at top of cab ceiling just enough to gain access
wiring harness wire terminal (2).
Disconnect wire terminals (2) by grasping terminals with your fingers and
firmly pulling them apart.
Support defogger fan and loosen and remove three nuts (3), lock washers (4),
and screws (5).
Remove defogger fan (6). Terminal (7) was disconnected when screw (5) was re-