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Section 7
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C. Changing Hydraulic Oil Filter Element
The hydraulic oil filter should be changed after every 500
hours of operation or annually, whichever occurs first.
1. Remove the oil filter element (Figure 7-3) and
properly discard it. Fill the new filter with clean oil
and install the filter. Hand tighten only.
2. Run the engine at idle speed with the speed control
lever in neutral for five minutes.
3. Check the oil level in the hydraulic tank. It must be
3-1/4" inches from the top of the filler neck. If
necessary, add SAE 20W50 motor oil.
7.4 ENGINE OIL
A. Checking Engine Crankcase Oil Level
The engine oil level should be checked after every 8
hours of operation or daily as instructed in the Engine
Operators Manual furnished with this mower.
B. Changing Engine Crankcase Oil
Figure 7-4 Engine Fill Stick
390S0155
HYDRAULIC OIL
FILTER
390S0156
ENGINE OIL
DIPSTICK
Figure 7-3 Hydraulic Oil Filter
After the first 5 hours of operation, change the engine
crankcase oil and replace the oil filter. Thereafter, change
the engine crankcase oil after every 100 hours of operation
or bi-weekly, whichever occurs first. Refer to the Engine
Operators Manual furnished with this mower for
instructions.
Figure 7-5 Drain Plug and Oil FilterLocation
C. Changing Engine Oil Filter
After the first 5 hours of operation, replace the engine oil
filter. Thereafter, replace the oil filter after every 200
hours of operation or every month, whichever occurs
first. Refer to Engine Operators Manual for
instructions.
STT99CEC
ENGINE OIL FILTER
DRAIN
PLUG
Summary of Contents for STT
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