Group 3 Tests And Adjustments - Hyundai HL955 Manual

GROUP 3 TESTS AND ADJUSTMENTS

GROUP 3 TESTS AND ADJUSTMENTS
1. HYDRAULIC OIL CLEAN UP PROCEDURE USING PORTABLE FILTER CADDY 1. HYDRAULIC OIL CLEAN UP PROCEDURE USING PORTABLE FILTER CADDY
※
Service equipment and tool.
·Portable filter caddy
·Two 3658 mm (12 ft) × 1" I.D. 100R1
hoses with 3/4 M NPT ends
·Quick disconnect fittings
·Discharge wand
·Various size fittings and hoses
※
Brake system uses oil from hydraulic oil
tank. Flush all lines in the steering sys-
tem.
Disassemble and clean major compon-
ents for steering system.
Steering components may fail if steering
system is not cleaned after hydraulic oil
tank contamination.
1) If hydraulic system is contaminated due to
a major component failure, remove and dis-
assemble steering cylinders to clean debris
from cylinders.
2)
Install a new return filter element. Clean fil-
ter housing before installing new element.
※
For a failure that creates a lot of debris,
remove access cover from hydraulic oil
tank. Drain and clean hydraulic oil tank of
fill the specified oil to hydraulic oil tank
through upper cover.
3)
To minimize oil loss, pull a vacuum in
hydraulic oil tank using a vacuum pump.
Connect filter caddy suction line to drain
port at bottom of hydraulic oil tank using
connector. Check to be sure debris has not
closed drain port.
4) Put filter caddy discharge line into hydraulic
oil tank filter hole so end is as far away from
drain port as possible to obtain a through
cleaning of oil.
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