Section 6 Maintenance HP7A Manual
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I
MAINTENANCE
Contents
Maintenance .................................................................................................................6-1
Lubrication ............................................................................................................................ 6-1
Grease Fittings ..................................................................................................................................6-1
Gear Housing ....................................................................................................................................6-1
Drive Tube Pivot and Universal Joint .............................................................................................. 6-2
Automatic Lubricator ........................................................................................................................ 6-3
Air Filter / Regulator .........................................................................................................................6-4
Coolant Pump Honing Oil .................................................................................................... 6-5
Hydraulic System ................................................................................................................. 6-5
Muffler Exhaust ..................................................................................................................... 6-6
Air Valve Lubricants ............................................................................................................. 6-7
Hydraulic System ........................................................................................................6-8
System Description .............................................................................................................. 6-8
System Check ...................................................................................................................................6-8
System Refilling and Bleeding ........................................................................................................6-8
V-Belt Adjustment and Removal .......................................................................................6-11
V-Belt Adjustment ...........................................................................................................................6-11
V-Belt Removal ................................................................................................................................6-11
Adjusting Pivot Lock Cylinder Assembly......................................................................... 6-12
Gear Housing Removal ...................................................................................................... 6-13
Adjusting Drag Pin Tension ............................................................................................... 6-17
Adjusting Feed Out Actuator Housing ............................................................................. 6-18
Gear Housing Disassembly ............................................................................................... 6-19
Replacing Shear Pin ........................................................................................................... 6-54
Removing Drive Tube Assembly ....................................................................................... 6-55
Removing Adjusting Shaft Assembly ............................................................................... 6-56
Replacing Hydraulic Cylinder ............................................................................................ 6-58