(c) Hose bulkhead (see paragraph 7-10).
(see paragraph 7-15).
(d) Foot (see paragraph 7-11).
(h) Chain adjuster (see paragraph 7-14).
(i) Feed chain (see paragraph 7-23).
(c) Centralizer (see paragraph 7-9).
(j) Slabback (set paragraph 7-8).
(f) Feed motor and gearbox assembly (see para-
graph 7-16).
(k) Drifter drill (see paragraph 7-7).
(g) Feed chain sprockets, bearings, and shafts
(3) Adjust chain tension (see paragraph 7-13).
Note: Gaskets on gearbox covers are laminated. Record thickness of
7-21. Gearbox Repair
gaskets after removing. Use the same thickness when installing gearbox
covers.
a. Disassembly.
(1) Remove feed motor and gearbox assembly (see
(6) Remove six screws (14) and lockwashers (15).
paragraph 7-16).
Remove cover (16) and gasket (17) from housing (18). Dis-
card lockwashers and gasket.
(2) Remove drain plug (1) and allow oil to drain.
Reinstall drain plug.
(7) Remove shaft (19) from housing (18).
Note: Scribe feed motor and quill motor flange to ensure proper reas-
Note: Gaskets on gearbox covers are laminated. Record thickness of
sembly.
gaskets after removing. Use the same thickness when installing gearbox
covers.
(3) Remove four screws (2) and lockwashers (3) se-
(8) Remove four screws (20) and lockwashers (21).
curing feed motor (4) to quill motor flange (5). Remove
Remove fan brackets (22), cover (23) and gasket (24) from
feed motor and key (6). Discard lockwashers.
gear housing (18). Discard lockwashers and gasket.
(4) Remove four screws (7) and flatwashers (8).
(9) Remove four screws (25) and lockwashers (26).
Remove fan cover (9).
Remove quill motor flange (5) and gasket (27) from gear
(5) Hold quill shaft (10) in place and remove screw
housing (18). Discard lockwashers and gasket.
(11) and lockwasher (12) securing fan (13) to quill shaft.
(10) Block gear housing (18) with fan end facing up.
Remove fan. Discard lockwasher.
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