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TM 55-1905-223-24-18-2
3-17. Replace Vertical Gear Assembly
This task covers:
a. Removal
b. Replacement
Equipment Condition
Tool kit, general mechanic's,
Bowl assembly removed as specified
Gear puller P/N 3375016
Pump connection assembly removed as
Arbor press P/N 4920-00-373-9376
specified in paragraph 2-18 .
Double gear pump assembly removed as
specified in paragraph 2-19 .
Vertical Gear Assembly P/N
Lubricating oil
Preformed packing
a. Remove oil drain screw (9, 11, Figure 3-10) and drain oil.
b. Remove three machine screws (13) from housing (2) and remove revolution indicator housing (12).
c. Set brake by turning handle (1) counterclockwise.
d. Loosen three hexhead screws (9) on worm wheel (10) enough to slide worm wheel to the right and
clear off worm spindle.
Two soldiers are required.
e. Remove four hex plain nuts (3) and cup springs (4) from mounting studs (8).
f. Lift frame off of caps (5), rubber cushions (6), caps (7), and mounting studs. Position frame assembly
with bottom exposed.
Refer to Figure 3-11 for the remaining removal procedures.
g. Remove three machine screws (13) and lockwashers (14) from bearing cover (15) on bottom frame.


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