Advertisement
GROUP 3 TESTS AND ADJUSTMENTS
1. HYDRAULIC OIL CLEAN UP PROCEDURE USING PORTABLE FILTER CADDY
Service equipment and tool.
Portable filter caddy
Two 3658mm(12ft)
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 system.
Disassemble and clean major components
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
disassemble steering cylinders to clean
debris from cylinders.
2)
Install a new return filter element.
filter 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.
1" I.D. 100R1
Clean
5-17
Advertisement
