Hydraulic Fluid Filter; Changing The Hydraulic Fluid Filter; Maintaining Hydraulic Oil Cooler Effi Ciency - HAKO PowerBoss Nautilus User Manual

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Hydraulic Fluid Filter

The reservoir tank has a pressure gauge to monitor hydraulic
fl uid pressure and to indicate when the hydraulic fl uid fi lter
needs to be replaced.
The pressure gauge needle indicates green, yellow, and red
pressure zones. When the needle reaches the red pressure
zone, the fi lter needs to be replaced.
Note: The pressure gauge should be observed when engine
is on. This gauge can be viewed from the sight hole below
the operator seat.

Changing The Hydraulic Fluid Filter

1. Turn off the engine and engage the parking brake.
2. Access the fi lter by tilting the operator seat forward and
engaging the seat lock. The fl uid fi lter will be visable on
top of the reservoir tank.
3. Unscrew the fi lter with a 15/16 in (24 mm) wrench, and
remove the fl uid fi lter from the top of the reservoir.
4. Screw the new fi lter in position and tighten with a 15/16 in
(24 mm) wrench.
Note: Do not over tighten.
5. Start the machine, shut it off , then check for leakage.
Page 68
HYDRAULIC
FLUID FILTER
Fig. 2: Hydraulic Filter & Pressure Gauge
Maintaining Hydraulic Oil Cooler Effi ciency
Your machine is equipped with a hydraulic oil cooler, it is
integrated with the radiator and utilizes exhausted radiator
air from the engine fan to cool the hydraulic fl uid.
To maintain its effi ciency, periodically blow out the radiator
and oil cooler fi ns with compressed air 100 psi (689 kPa) is
maximum.
Nautilus Rider Scrubber/Sweeper #988749UM Rev. K 04/21
© 2014-2015 Minuteman International, Inc.
PRESSURE
GAUGE