User manual
Defect
Slewing chassis is difficult or
impossible
Cause
Brakes do not release
Insufficient lubrication
Rectification
Authorized workshop
Lubricate slewing ring hose
connections
Authorized workshop
Top up hydraulic oil
Warm up the engine
See engine
Authorized workshop
Authorized workshop
W ORKING E QUIP ME NT
Slewing motor defective
Equipment does not work, or only
at low working/grab performance
Insufficient hydraulic oil
Hydraulic oil not warm
Insufficient engine power
Coupling or pump damaged
Pressure limiting valves set
too low
Hydraulic cylinder damaged
Control valves damaged
Cylinders lower too quickly Seals contaminated or defective
Heavy leakage at control spools
Secondary cartridges defective
Hydraulic lines overheat Hydraulic oil filter blocked
Insufficient hydraulic oil in oil
reservoir
Seccondary cartridges set too low
Cooling system not in working
order
Authorized workshop
Authorized workshop
Authorized workshop
Authorized workshop
Authorized workshop
Clean or change filter
Top up hydraulic oil
Authorized workshop
Clean oil cooler
9707672_user manual_en
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