SECTION I: ENGINE COOLING FANS
TM 9-2350-256-20
5— 5 REPLACE/REPAIR ENGINE COOLING FAN VERTICAL SHAFT OIL SEALS
THIS TASK COVERS
a. Removal
b. Disassembly
c. Assembly
d. Installation
INITIAL SET-UP
Tools:
Material/Parts:
Reference:
·Tool kit, general mechanic's
·Compound, sealing
TM 9-2350-256-10
(Appendix C, item 53)
(Appendix D, item 25)
·Screws, cap (jackscrews) (2)
·Gaskets (2) (Appendix G,
Equipment Condition:
(Appendix C, item 44)
item 78)
Cooling fans removed (see
paragraph 5-2)
·Lockwires (2) (Appendix G,
item 156)
·Seals, oil (2) (Appendix G,
item 264)
NOTE
Removal and installation are the same for both the front and rear cooling fan oil seals.
a.
REMOVAL
1
Cut and remove lockwire (1).
2
Remove six screws (2) and six flat washers (3)
securing vertical drive shaft oil seal housing
assembly (4) to fan drive housing cover (5).
3
Install two 5/16-18 by 4-in.- (101.6-mm-) long
jackscrews (6) in screw holes provided in oil seal
housing assembly (4).
4
Alternately tighten the two jackscrews (6) until oil
seal housing assembly (4) separates from fan drive
housing cover (5).
5—
7
