Gearbox Maintenance - VERDER PACKO ZL Series Operation & Maintenance Manual

6.7 GEARBOX MAINTENANCE

Gearbox Disassembly
1. Remove the drain plug and drain the oil.
Remove the shaft key (7) on the drive shaft and Gearbox cover
bolts (6) from the rear cover (4).
2.
Pull the cover off the drive shaft extension. If the cover is stuck,
use a soft mallet carefully to loosen it. Heavy hitting by mallet
may cause damage to the cover and dowel (15).
Remove the rear cover oil seal (11) from the rear cover if the oil
seal is needed to be replaced. Remove the paper gasket from
the cover or Gearbox.
3. Straighten the locking tab of the bearing lock washer. Remove
the lock nut (12-1) and lock nut washer (12) from the drive
shaft (8) & idle shaft (9).
4. Pull the two helical-gears (14) off from the drive shaft (8) & idle
shaft (9).
5. Remove the gear keys (10) for both drive & idle shafts.
6. Remove the front bearing gland set bolts (23) as shown in
Figure 34.
7. Place the gearbox (1), wet end (rotor side) down, under a
press.
Protect the shaft ends with a wooden block and press the drive
& idle shafts to pull out of the gearbox.
Fig. 31
Fig. 32
Fig. 33
Fig. 34
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