VERDER JEC PUMPS JRZS Series Operation And Maintenance Manual page 15

Gearbox Assembly
1. Clean and lubricate the front & rear bearing areas of the drive & idle shafts with oil.
Fit the front bearing, spacer and rear bearing on the shaft sequentially by arbor press (or heat
120℃(250F) up by heater).
Position the gearbox (1) with wet end side facing up and be sure to place carefully for the gasket
face(downside) of cover during this time.
Clean and lubricate the front and rear bearing areas with oil.
Insert the shaft perpendicularly one by one to the gearbox properly. There should be a tight
sliding fit between the gearbox and the bearing outer rings. Press the shaft into gear case until
bearings are fully seated.
2. Lubricate and install the front bearing oil seals set
(21,22,24) on the gearbox.
Place the front bearing gland set on the both screws and
insert carefully for the Oil seal spring inside of the gland
set would not be deflected during insert. Set the Bolt &
washer, and tighten.
3. Place the gear spacer (5mm) and insert gear key on the
slots of drive shaft.
4. Place the gear (14), lock washer (12) and lock nut (12-1)
sequentially onto the drive shafts and hand tighten.
At this time, before insert lock washer, one sawtooth of
lock washer should be bent and inserted into the hole of
timing gear.
5. Insert helical gear and power lock on the idle shaft and
fasten power lock temporarily. Put the wedge between
timing gears and tighten the gear lock nut on the drive
shaft.
The other sawtooth also fitted in the lock nut to fasten
each other and release the power lock in order to insert
screws.
Ver. JRZSM-1807
Fig. 20
Fig. 21
Fig. 22
Fig. 23
14