Repair Procedures BPU 2440/2950 Repair
wc_tx000329gb.fm 42
Timing Exciter Weights
Refer to Cross Section Component List for item numbers ( ).
See graphics: wc_gr001448, wc_gr001449, and wc_gr001450.
5.11.9 Align timing marks on gears with piston extended. View shafts from
piston side and compare position of bolt holes in shafts and timing
marks on gears with those shown. If bolt pattern does not match sleeve
gear was installed incorrectly. Back gear off bearing and rotate it one-
half turn.
5.11.10 Install wear ring (17).
5.11.11 After installation is complete, operate piston by hand and make sure
both sleeve gear and piston slide freely.
5.11.12 Using Loctite 515 gasket eliminator or equivalent on flange, assemble
it to housing. Coat M10 screws with Loctite 242 or equivalent and
secure flange to housing. Torque screw to 7 ft.lbs. (10 Nm).
5.11.13 Install retaining ring (7) on end of drive shaft.
5.11.14 Once assembled, exciter weights can cause exciter shafts to turn
unexpectedly and with considerable force. Keep fingers and hands
away from gears and weights when handling exciter assembly to
prevent being pinched.
Install exciter weights. Coat threads of M10x25 screws with Loctite 271
or equivalent and secure weights to drive shaft. Coat threads of
M10x35 screws with Loctite 271 or equivalent and secure weights to
idler shaft. Torque screws to 38 ft.lbs, (50 Nm).
5.11.15 Re-install the exciter assembly to plate.
CAUTION
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