REMOVAL OF ISOLATED MOTOR
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 and hydraulic
tank relief valve is slowly loosened to relieve pressure. 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.
No personnel shall perform maintenance above or below the main frame
without the main frame being supported at the front by use of a jack stand
or the prime mover. Failure to comply may result in injury or death to
There are two hydraulic motors - primary (3) and isolated (11).
The solenoid to isolated motor wire and ground wire must be
removed from isolated motor prior to removal.
Loosen two mounting bolts (1) on primary motor (3) and two mounting bolts (1) on isolated
Remove solenoid to motor wire (12) and ground wire (13) from isolated motor (11).
Disconnect hose from elbow (4) on isolated motor (11).
Remove hose (14) from elbow (15) on isolated motor (11).
Disconnect two straight adapters (5).
Remove two screws (16), lockwashers (17), and flatwashers (18) from bracket (19) on isolated
Loosen two screws (20) and slide primary and isolated motors to allow for removal of isolated
motor from bracket.