Assembly Of Gears - Johnson Pump Top Wing Series Manual

6. Adjust the thickness of the shim by peeling of the required number of layers of
0.025 mm (coloured).
7. Remove the retainers from both shafts and take off the rotors.
8. Remove screws (0510).
9. Screw 2 bolts in the flange of the bearing holder and push the bearing
holder approx. 2 mm backwards out of the rotor case.
10. Remove the 2 bolts.
11. Place the shim between the flange of the
bearing holder and the rotor case.
12. Tighten the bearing holder with screw (0510).
13. Place the rotors on the shafts, tighten them
with the retainers in the same way
as mentioned above and check all axial
clearances between rotor and pump cover.
4.7.5

Assembly of gears

1. Place the gear (0190) with locking assembly (0652)
(locking elements (0651) for TW1) on
the lay shaft (0051).
2. TW1
Check if the screws of the locking elements are clean,
lubricate them with clean oil and fit them in place.
3. Place the gear (0190) with locking assembly (0652) (locking
elements (0651) for TW1) on the drive shaft (0050).
Use the torque wrench to tighten the bolts on the lay shaft
with the specified torque following the tightening sequence
shown below.
4. Check proper running of the gears (''no heavy points'') by
measuring axial run out of the gears (max 0.05 mm).
5. If the gears cannot be turned smoothly re-adjust the gears.
A.0500.301/314.C – IM-TW/10.00 GB (0401)
0050
0190
0652
0051
0651
Bolt
0510
TW 1
0520
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