75 - 12
Ram Piston Head Nut (cont’d)
Nut Fitting (cont’d)
Note: The gauge pressures in the above table assume that
the rig is used with spanners having 500 mm centres (see
Service Tools, Hydraulics, Ram Dismantling and
Assembly, Spanner Requirements).
Section E
Hydraulics
9803/6400
Section E
75 - 12
Issue 1
Hydraulic Rams
JS200
Ram Location Piston Nut Piston Nut Torque Gauge Pressure
AF (mm) Nm (lbf ft) bar (lb/in
2
)
Boom 95 5000 (3700) 35 (500)
Dipper 100 9340 (6912) 65 (935)
Bucket 90 7140 (5284) 50 (715)
JS240
Ram Location Piston Nut Piston Nut Torque Gauge Pressure
AF (mm) Nm (lbf ft) bar (lb/in
2
)
Boom 100 5790 (4285) 40 (580)
Dipper 115 13200 (9769) 90 (1320)
Bucket 100 9340 (6912) 65 (935)