Specifications

MAINTENANCE
71
550 Gas/LPG 330650 (8--01)
PARKING BRAKES
The parking brakes are mechanically activated by
the parking brake lever and two cables.
The parking brake cables should be adjusted after
every 200 hours of operation or whenever the
machine rolls after setting the parking brake or
when it becomes very easy to set the parking
brake. To adjust the brake cables, turn the knurled
knob on the end of the parking brake clockwise.
T ighten the brake cable enough to make the
parking brake slightly resist being set.
TIRES
The machine is equipped with four pneumatic
tires. The air pressure in these tires is critical to
machine performance. Check the tire pressure
daily. The correct tire pressures are: 55 psi
(380 kPa) front, 35 psi (240 kPa) rear.
T ighten the wheel lug nuts in the pattern shown,
after every 200 hours of operation. Tighten lug
nuts85to95ftlb(115to130Nm).
2
3
4
1
5
6
OPTIONS
HIGH PRESSURE SPRAYER
The high pressure sprayer option requires some
periodic maintenance to keep it operating
properly.
Fill the crankcase and oil wicks according to the
following instructions. Operate and maintain the
pump only as directed.
The pump must not be run dry and must be
drained of water prior to exposure to freezing
temperatures.
NOTE: Do not pump acids, abrasive, or
flammable fluids with this unit.
Crankcase -- Fill crankcase t o the dot on the
oil gauge window with 1.25 pt (0.6 L) of
genuine Cat Pump Crankcase Oil.
Change the oil after a 50 hour run-in period.
Then change the oil every three months or
at 500 hour intervals when using genuine
Cat Pump Crankcase Oil. If other approved
oil is used, change oil every month or at 200
hour intervals.
Piston Rod Wicks -- Prior to initial operation,
saturate the piston rod wicks and fill the
reservoir (approximately 60 drops of oil --
two pumps of a push-type oil can in each of
the three lubricator housing holes). Add 30
drops of oil to each hole every week or 100
hours of operation.
Filter -- The in-line solution filter must be
cleaned or replaced after the 50 hour run-in
period and every three months or 500 hours
of service.
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