TM-9-2510-247-13-P

FIFTH WHEEL TOWING DEVICE MODEL 250M

TECHNICAL MANUAL; OPERATOR’S, UNIT, AND DIRECT SUPPORT MAINTENANCE MANUAL, REPAIR PARTS AND SPECIAL TOOLS LIST

JULY 2004
TM-9-2510-247-13-P

  TM-9-2510-247-13-P - Page 301 of 522

TM 9-2510-247-13&P
0064 00
HYDRAULIC CYLINDER (MAST TO BOOM) REPLACEMENT
REMOVAL, INSTALLATION
INITIAL SETUP:
Equipment Conditions
Materials/Parts
Fifth Wheel Towing Device in
None
loading configuration (WP 0002).
Hydraulic pressure relieved (WP 0056 00-5).
Personnel Required:
2
Tools/Test Equipment
General Safety Instructions
Tool Kit, Mechanics General,
None
A suitable lifting device for 115 lbs (53 kg)
REMOVAL
WARNING
HYDRAULICS
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.
NOTE
Hydraulic hoses should be capped and/or plugged when disconnecting to
prevent contamination of hydraulic system.
The following procedures are for removal of both mast to boom cylinders.
Adjust maintenance steps as necessary to achieve required maintenance.
0064 00-1


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