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HYDRAULIC OIL FILTER 1.5
The hydraulic oil filter is located in the engine
compartment, accessed by opening the rear door and
lifting the engine compartment cover. The filter is
mounted on the left side, on the oil reservoir.
All oil returning from the control valve is filtered before
being used up by the hydraulic system.
The hydraulic oil filter is a spin on type with a 10 micron
rating. The filter material is a resin impregnated cellulose
which features an accordion pleated design to provide
maximum filtration area. Only Thomas approved filters
should be used.
The filter mounting head has a built in bypass valve that
diverts oil around the filter when more than 25 psi (34
nm) differential pressure is required to force oil through
the filter.
General Information
Filter Replacement
The hydraulic oil filter must be changed after the first
50 hours of operation and every 150 hours thereafter,
or sooner if the pressure gauge dictates.
1 Lower the boom arms, shut off the engine and
engage the parking brake.
2 Open the rear door and raise the engine compartment
cover to gain access to the hydraulic filter. (fig. C2347,
C2354)
3 Clean the area of excess dirt if necessary to prevent
contaminating the new filter when installing
4 Remove the hydraulic oil filter using a proper sized
filter wrench. Check to make sure the o-ring seal has
come off with the used filter. (fig. C1868)
5 Lubricate the new filter seal with clean system oil.
6 Install the filter and fit hand tight.
7 After start up, check the system for oil leaks.
Replenish the oil reservoir as required with API 10W30
class SE / CD. (fig. C892, C1108)
C2354
C2347
C1108C892
Filler cap
Oil level
site gauge
C1868
Check seal
WARNING
Never repair or tighten hydraulic lines while the
engine is operating or the system is under pressure.
Access the engine compartment
Hydraulic oil filter
Oil level site gauge
Pressure gauge
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