page 32
page 32
page 32
page 32
page 32
475 A CRL
800-00167
PRESSURE
PRESSURE
PRESSURE
PRESSURE
PRESSURE
ADJUSTING
ADJUSTING
ADJUSTING
ADJUSTING
ADJUSTING
SCREW
SCREW
SCREW
SCREW
SCREW
COMPENSATOR
COMPENSATOR
COMPENSATOR
COMPENSATOR
COMPENSATOR
GRAPPLE PUMP
GRAPPLE PUMP
GRAPPLE PUMP
GRAPPLE PUMP
GRAPPLE PUMP
BOOM & TRAVEL VALVE
BOOM & TRAVEL VALVE
BOOM & TRAVEL VALVE
BOOM & TRAVEL VALVE
BOOM & TRAVEL VALVE
(secondary shown)
(secondary shown)
(secondary shown)
(secondary shown)
(secondary shown)
ACORN
ACORN
ACORN
ACORN
ACORN
NUT
NUT
NUT
NUT
NUT
MAIN RELIEF
MAIN RELIEF
MAIN RELIEF
MAIN RELIEF
MAIN RELIEF
JAM NUT
JAM NUT
JAM NUT
JAM NUT
JAM NUT
BOOM & TRAVEL PUMP (NEW STYLE)
BOOM & TRAVEL PUMP (NEW STYLE)
BOOM & TRAVEL PUMP (NEW STYLE)
BOOM & TRAVEL PUMP (NEW STYLE)
BOOM & TRAVEL PUMP (NEW STYLE)
COMPENSATOR
COMPENSATOR
COMPENSATOR
COMPENSATOR
COMPENSATOR
ADJUSTING
ADJUSTING
ADJUSTING
ADJUSTING
ADJUSTING
SCREW
SCREW
SCREW
SCREW
SCREW
JAM NUT
JAM NUT
JAM NUT
JAM NUT
JAM NUT
11. Then reset the grapple pump compensator to
2500 PSI.
NOTE:
NOTE:
NOTE:
NOTE:
NOTE: 2500 PSI is the maximum factory
recommended pressure for the grapple pump.
12. Raise the main relief PSI settings on both Boom
& Travel Function Valves above 5600 PSI by
removing the acorn nut (cap), loosening the jam
nut, and turning the exposed adjusting screw with
a screwdriver, all the way in and then back out a
quarter turn.
13. On the New Style
New Style
New Style
New Style
New Style Boom & Travel Pumps, with
machine running and gauges on the pressure
check ports, raise the compensator setting above
5600 PSI by loosening the jam nut and turning
the adjusting screw in with a 3mm Allen wrench.
Then retighten the jam nut.
NOTE:
NOTE:
NOTE:
NOTE:
NOTE: On Old Style
Old Style
Old Style
Old Style
Old Style Boom & Travel Pumps, before
raising the compensator setting as described
below in item 13, be sure to back out the small
adjusting screw on the conpensator, using a 3mm
Allen Wrench, as far as it will go and then tighten
the jam nut.
13. On the Old Style
Old Style
Old Style
Old Style
Old Style Boom & Travel Pumps, with
machine running and gauges on the pressure
check ports, raise the compensator setting above
5600 PSI by loosening the adjusting nut and
turning the threaded sleeve in. Then retighten
the adjusting nut.
BOOM & TRAVEL PUMP (OLD STYLE)
BOOM & TRAVEL PUMP (OLD STYLE)
BOOM & TRAVEL PUMP (OLD STYLE)
BOOM & TRAVEL PUMP (OLD STYLE)
BOOM & TRAVEL PUMP (OLD STYLE)
THREADED SLEEVE
THREADED SLEEVE
THREADED SLEEVE
THREADED SLEEVE
THREADED SLEEVE
ADJUSTING
ADJUSTING
ADJUSTING
ADJUSTING
ADJUSTING
NUT
NUT
NUT
NUT
NUT
COMPENSATOR
COMPENSATOR
COMPENSATOR
COMPENSATOR
COMPENSATOR
ADJUSTING
ADJUSTING
ADJUSTING
ADJUSTING
ADJUSTING
SCREW
SCREW
SCREW
SCREW
SCREW
JAM NUT
JAM NUT
JAM NUT
JAM NUT
JAM NUT
HYDRAULIC PRESSURE ADJUSTMENT PROCEDURE CONTINUED...