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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 right side, on the fuel reservoir.
All oil returning from the control valve is cooled and then
filtered before being used up by the hydraulic system.
The hydraulic oil filter is a spin on type with a 5 micron
rating. The filter material is a synthetic media 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.
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. C4223,
C1472)
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. C1968)
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 SJ. (fig. C3431, C1108)
C1472
C4223
C1108
C3431
Filler cap
Oil level
site gauge
C1968
Check seal
WARNING
Never repair or tighten hydraulic lines while the
engine is operating or the system is under pressure.
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