Jungheinrich DFG 660 Operating Instructions Manual page 149

Hydraulic Operation
Check lateral clearance of the mast connections and the fork
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carriage.
Visually inspect the mast rollers. Check the wear on the running
10
surfaces.
Check the running surfaces of the mast for wear and damage, and
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lubricate if necessary.
12 Test hydraulic system.
13 Test hydraulic system.
14 Replace hydraulic reservoir discharge paper filter.
15 Replace hydraulic oil filter.
Check that hydraulic ports, hose and pipe lines are secure, check for
16
leaks and damage.
17 Test emergency lowering system.
18 Check hydraulic oil level and top up if necessary.
19 Check hydraulic oil level and top up if necessary.
20 Test pressure limitation valve and adjust if necessary.
21 Replace hydraulic oil.
22 Check fork tines or load handler for wear and damage.
23 Check fork tines or load handler for wear and damage.
24 Check mast tilt.
Check piston rod screw depth and counter fixing / clamp. Where two
25 tilt cylinders with the same stroke length are used, check their setting
in respect of each other.
26 Check tilt cylinders and mounting.
27 Test lift and lowering speeds.
Agreed performance levels
Carry out a test run with rated load, if necessary with a customer-
1
specific load.
2 Demonstration after servicing.
3 Lubricate the truck according to the lubrication schedule.
Steering
1 Test hydraulic steering and its components.
2 Test the hydraulic steering for leaks.
3 Check steer axle and stub axle for wear and damage.
4 Check the stub axle and adjust if necessary.
5 Grease the steer axle.
6 Check mechanical parts of steering column.
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