Monaco SIGNATURE 2001 series, Owner'S Manual

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The Interceptor series hydraulic filter system located in
the engine compartment has special features to protect the
precision tolerance hydraulic components. The filter head
assembly has a built in sight gauge which indicates fluid
flow through the filter. A specially designed media filter
absorbs harmful contaminants such as moisture and dirt.
When the engine is running, use the sight gauge to check
the filtering process. The green zone indicates the
hydraulic fluid is being properly filtered and flowing unre-
stricted through the filter and head assembly back to the
reservoir. As the filter traps harmful debris and contami-
nants, the indicator will move into the red zone. When the
indicator is in the red zone, it is indicating filter is clogged
and fluid is bypassing the element returning to the reser-
voir. The filter head is equipped with a built in bypass valve. This prevents a
clogged filter from developing a leak due to excess hydraulic fluid pressure
inside a clogged filter.
The filter is rated at ten micron*. Change the filter before the built in
sight gauge is operating in the red zone. This will ensure the hydraulic fluid
is properly filtered.
Filter number: Parker IN HC 5720 (ten micron)
*One micron is one millionth of one meter.
Maintain the grease pack behind the output shaft
dirt and water seal as a general maintenance proce-
dure at least twice a year. The grease fitting is pro-
vided in the housing trunnion. Use NLGI grade 2 or
3 multipurpose chassis lube and use only a hand
operated grease gun on the fitting. Add grease until
it begins to extrude past the sector shaft dirt and
water seal.
Power steering is provided by using hydraulic
pressure to assist rotating the output shaft of the
steering gear. Located at the end of the input shaft
of the steering gear is poppet valve and worm drive.
The poppet valve directs the hydraulic fluid pres-
sure to a type of spool. The worm drive threads in the center of the spool.
When in the center position pressurized hydraulic fluid bypasses the spool.
When a turn is made the poppet valve shifts to one direction or the other,
directing the hydraulic pressure to one side of the spool depending on turning
direction. The hydraulic fluid is then cooled before returning to the reservoir.
Inspect for signs of leakage when performing fluid level checks. Changing
the hydraulic filter at regular intervals will help ensure trouble free operation.
Chassis Information
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S I G N A T U R E 1 0 • 3 0 4
Hydraulic Filter (ISM Engine)
STEERING GEAR
Hydraulic filter for the power steering and hydraulic cooling
fans.