HYDRAULIC CYLINDER (MAST TO BOOM) REPLACEMENT
Fifth Wheel Towing Device in
Personnel Required: 2
General Safety Instructions
Tool Kit, Mechanics General,
A suitable lifting device for 115 lbs (53 kg)
Ensure hydraulic protection valve is open (breather switch in line with
breather) prior to operating hydraulics. Failure to comply could cause
injury or death to personnel or damage to equipment.
High pressure is present in the 250M Fifth Wheel Towing Device
hydraulic system. Do not disconnect any hydraulic system component
unless hydraulic system pressure has been relieved. Ensure each hydraulic
control lever is moved several times through all positions . Failure to
comply may result in severe injury or death to personnel.
Spilled hydraulic oil is very slippery. Be careful when entering or working in
area. Wipe up any spilled oil immediately. Failure to comply may result in
severe injury or death to personnel.
Hydraulic hoses should be capped and/or plugged when disconnecting to
The following procedures are for removal of both mast to boom cylinders.
Adjust maintenance steps as necessary to achieve required maintenance.