Spearhead TWIGA
120
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Filtration Maintenance
The machine is protected by low pressure 10 micron full flow return line filler.
Return Line Filter
The element should be changed after the first 50 hours of use and thereafter at 500 hour
intervals. It is important to note hours worked as if the filter becomes blocked an internal
by-pass within the canister will operate and no symptoms of filter malfunction will
occur to jog your memory.
Hydraulic Pumps
The hydraulic pump complete with its drive coupler is used with all machines with
independent hydraulics when used on tractors with high speed PTO shafts. The pump is
anti-clockwise in rotation.
No routine maintenance is necessary on the pumps other than a periodical check for
tightness of the mounting bolts and a visual check for oil leakage, especially around the
pump supply and pressure unions. Two hose clips are used on the pump supply hose and
their worm-drive barrels should be placed opposing each other at 180°. These clips should
regularly be checked for tightness, especially during the first few hours of work, to avoid
the possibility of air being drawn into the hydraulic system.
Hydraulic Pump Seals
The illustrations below show the part numbers of the individual seal kit components for
differing pumps.
Summary of Contents for TWIGA 120
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