SkyTrak 8042 Service Manual - Manual (Page 815)

Electrical System
9.224 Model 8042, 10042, 10054 Legacy Rev. 10/03
Examine the fluid in the hydraulic oil sight glass (1) to
check whether there is a sufficient amount of fluid in the
system (the oil level should be at the bottom of the sight
glass with all hydraulic cylinders retracted) and whether
the fluid is contaminated. Replace the hydraulic oil filter
as required. Explore other causes for excessive
temperature, such as high air temperature, plugged oil
cooler or lines, loose fan belt, plugged radiator, etc.
(Refer to Section 9.8.33, “Hydraulic Oil Temperature
Warning Indicator Troubleshooting.”)
a. Hydraulic Tank Oil Temperature Switch Removal
1. If the vehicle has one battery, disconnect the
negative (-) battery cable at the negative (-) battery
terminal (2).
If the vehicle has dual batteries, disconnect both
negative battery cables from both negative (-) battery
terminals (3).
2. Drain oil from the hydraulic tank reservoir into a
clean container for reuse.
3. Label and disconnect the temperature switch wiring
connector (4) from the harness connector.
4. Unthread the switch (5) from the hydraulic reservoir
welded fitting (6).
b. Hydraulic Oil Temperature Switch Disassembly
DO NOT disassemble the hydraulic oil temperature
switch. Replace a defective or faulty switch with a new
switch.
OH2340 1
MH4890
2
3
MA7670
4
5
6