Repair Procedures BPU 2440/2950 Repair
wc_tx000329gb.fm 38
5.9 Servicing Exciter
Recommended Tools
Allen wrench – 5 mm, 8 mm
Snap ring pliers – external type
Torque wrench – 38 ft.lbs. (50 Nm)
Screwdriver
Rubber mallet
Arbor press
Wooden V-block
Loctite sealants – 242, 271, 515
5.10 Disassembling the Exciter
See graphics: wc_gr001443, wc_gr001444, wc_gr001445
Refer to Cross Section Component List for item numbers ( ).
Remove exciter as shown in section
Removing Exciter
.
5.10.1 Mark front corner of housing on side that exciter pulley attaches to.
5.10.2 Jam the gears to prevent them from turning and remove all exciter
weights (21).
5.10.3 Remove snap rings (7, 10) from drive shaft.
5.10.4 Mark location of all flange covers (1, 2, 9, 13) and remove covers from
exciter.
Note:
Flange covers (9, 13) on drive shaft are equipped with threaded
pusher holes (a)
.
5.10.5 Remove drive shaft (2).
Place exciter in an arbor press pulley side up. Press on pulley side of
drive shaft (b) until the shaft is pushed completely through the side of
the housing. The shaft will press out with sleeve gear (12), piston
assembly (14), and inner bearing races intact.
Note:
During this step the roller bearing on the opposite end of shaft
will be pressed out of exciter housing. Remove bearing as it becomes
free of housing to prevent it from falling.
5.10.6 Use arbor press or 2-jaw puller to remove bearing races and sleeve
gear bearing (12a).
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