Hog Technologies SK5500, Operation Manual

Page: 127 / 161

127
Section 5 - Scheduled Maintenance
5.18 Hydraulic System
Scheduled Maintenance
Hydraulic System
The hydraulic pump operates at very high pressure
and has specific maintenance requirements. You
should perform all recommended maintenance ac-
cording to the pump manufacturers’ specifications.
Hydraulic fluid should be changed and the tank
flushed on a regular schedule in accordance with
Hog Technologies and the hydraulic component
manufacture’s recommendations. Hog Technolo-
gies recommends changing the fluid at least once
every 600 hours.
Daily Inspection and Maintenance
• Check the hydraulic fluid level each day or im -
mediately following the repair of a blown hose,
leaking fitting or any hydraulic system service.
• Inspect all hoses, fittings, valves and seals for
leaks and proper operation. Repair or replace
leaking or malfunctioning components before
operating the system.
• Check the pressure indicator on the high pres-
sure filter and make sure it is well within the
green zone. Change the filter when the indicator
moves near or into the red zone.
• Monitor cooling fan operation and make sure
they are activating when the water blasting
system is started. They should sound normal
and pull a strong flow of air through the coolers.
Refer to the Maintenance Matrix in this section for
fluid specifications.
200 Hour Inspection and Maintenance
• Change the low pressure filters in the return
line at the hydraulic oil reservoir and in the
Reservoir tank. The filters remove debris that
may enter the system and should be changed
every 200 hours or more frequently if neces-
sary.
• Inspect the cooling fins for the coolers and
clean as necessary. The coolers are critical
in maintaining acceptable oil temperatures in
the hydraulic system and must be kept clean
to maintain efficiency.
600 Hour Inspection and Maintenance
• Drain hydraulic fluid and flush hydraulic tank.
Hydraulic Fluid Reservoir & Low Pressure Filter
High Pressure Filter & Indicator