18
Shaft and Bearing Replacement
Gearbox Disassembly
1.
Remove the oil drain plug and drain the oil.
2.
Remove the gear box cover bolts (33) from the gear box cover (2).
3.
Pull the gear box cover off the drive shaft extension. If the cover stuck use a soft hammer
carefully to loosen it. Heavy hitting the hammer may be cause damage to gear box cover
(2) and dowel (27).
4.
Remove the rear cover oil seal (22) from the gear box cover (2)
5.
Remove the paper gasket from the gear box cover (2) or gear box (1).
6.
Straighten the locking tab of the bearing lock washer. Reinstall the rotors (5) on the drive
and idle shafts. Lock the rotor with a plastic dowel. Remove the lock nut (19) and lock nut
washer from the drive shaft (7) and idle shaft (8).
7.
Pull the two helical-gears (18) off the pump shafts. Remove the gear keys (14).
8.
Remove the front bearing gland set bolts.
9.
Place the gearbox (1), wet end (rotor side) down, on an arbor press.
10.
Protect the shaft ends with a wood block and press the drive and idle shaft out of the
gearbox.
11.
Remove the bearings and spacers together by press the shaft out from the shafts.
12.
Or remove bearings by puller.
13.
The taper roller bearings for 400 series must be keep together with in-outside spacer and
separated for drive and idle shafts.
Содержание JEC JRZLF Series
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