CM220 Chipper 6. MAINTENANCE 6-7
©GreenMechLtd 6-7 08/17
6.16 Bearings and Pivots
Weekly
See paragraph 6.1 for routine lubrication.
250 hours
Check rotating components for excessive movement and noise in operation.
Replace as required.
6.17 Hydraulic connections
First
50 hours, weekly, every 250 hours
With the aid of the circuit diagram to follow the hose routings, check all hoses and
connections for leaks and damage.
Replace any worn or damaged hoses with the correct type and length.
Before removal, check routing and ensure replacement hose is fitted free of strains, twists
or kinks.
CAUTION! Ensure any residual pressure is released before dismantling.
CAUTION! Ensure hoses are refitted free of twists and kinks.
6.18 Mountings
First
50 hours, weekly and every 250 hours
Check that all mounting bolts are tight.
6.19 Hydraulic Return Filter
250 hours
1 Check oil is cool.
2 With a drip tray underneath, unscrew the filter
element and discard safely (fig 6.19).
3 Fit a new filter to the correct specification.
CAUTION! Do not overtighten.
6.20 Number not used
6.21 Hydraulic Oil change
1000 hours
1 Remove hydraulic oil with suction pump at filler and replace with new oil of correct specification.
2 Replace suction filter.
3 Dispose of waste oil according to local authority environmental procedures.
6.22 Fuses and No Stress system
There are two fuses.
A 40 amp in-line fuse protects the engine pre-heat and start circuit.
A 20 amp fuse protects the No Stress system.
Note The engine operating speeds for the No Stress system are factory set for particular machine
builds and must not be readjusted.
Fig 6.19 Hydraulic Return Filter
Hydraulic filter
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