31 - 4
Dismantling and Assembly
Assembling
1 Wash all components and apply hydraulic oil
immediately afterwards to prevent moisture collecting.
2 Renew all seals and 'O' rings using JCB Special
Hydraulic fluid as a lubricant.
3 Fit inner shaft seal 17 into mounting flange 6 with the
garter spring B facing toward the pump.
4 Fit circlip 16 and outer shaft seal 15 with garter spring
C facing away from the pump. Coat seal lips with JCB
HP grease.
5 Fit seal 26 and back up seal 27 to balance plate 25,
locate assembly into main body 5.
Note: Make sure that the two small holes D in the balance
plate are on the low pressure side of the pump, i.e. the side
adjacent to the threaded inlet port.
6 Fit drive shaft 20 and driven gear 24 into their original
bores.
7 Fit seal 22 and back up seal 23 to balance plate 21,
locate assembly over drive shaft 20 and driven gear 24.
Note: Make sure that the two small holes D in the balance
plate are on the low pressure side of the pump, i.e. the side
adjacent to the threaded inlet port.
8 Fit 'O' ring 19 to mounting flange 6. Apply a small
amount of JCB Multi-gasket to main body mating face,
shown at E.
9 Fit protective sleeve over driveshaft, locate mounting
flange to main body in its original position, drain hole to
low pressure side i.e. the side with the threaded inlet
port.
10 Secure with washers 14 and nuts 13, torque load.
11 Pour a small amount of clean hydraulic oil into the inlet
port and check that the drive shaft can be turned by
hand without undue force.
12 Fit key 4, drive gear 1, tab washer 2 secure with nut 3.
Torque load nut 3 and lock with tab.
Torque Settings
Item Nm Kgf. m Ibf. ft
3 100 10 74
13 95 9.7 70
Section E Hydraulics
9803/7130
Section E
31 - 4
Issue 1
Main Pump
To Next Page
Loading...
Need help?
General
