104
Maintenance
SP 500 / 750-15 / 750-18 / 1000 / 1250 Operation Manual
Semi-annual maintenance
Change hydraulic oil for temperature reasons.
If the machine will be used in a location where sea-
sonal temperature changes are extreme, replace the
machine’s hydraulic oil every 6 months. Use an oil of
the correct viscosity for the temperature in which the
machine will be operated. If the used oil is saved in
clean barrels that are then properly stored, the same
oil can be reinstalled in the machine when another sea-
sonal temperature change occurs. Hydraulic oil can be
used for a maximum of two 6-month seasons. Contact
your hydraulic oil dealer to obtain clean barrels and the
proper storage procedures. If you ignore proper storage
procedures, the oil will become so contaminated that
reuse will become destructive to the machine. Use a
lter cart for transferring hydraulic oil. If you do not own
one, consider buying or renting one. When you change
the hydraulic oil for temperature reasons, use the same
procedure “Change hydraulic oil for age reasons” on
page 105
Change hydraulic oil return lter
1. Make sure the engine is shut o. Put the key in
your pocket to prevent someone else from start-
ing the engine.
2. Position a pan or bucket under the lter housing
to catch drips. The check valve built into the lter,
which prevents back ow, should not allow much
leakage oil, but there will be some. Oil spills con-
taminate the environment.
3. Unscrew the lter element. Use an oil lter
wrench, if needed.
4. Remove the spin-on element, and pour the oil out
into the catch pan. Do not reuse this oil.
5. Remove the old element and replace with a new
element.
6. Apply light grease around the gasket of the new
lter, such as Lubriplate 105.
7. Tighten by hand, with the oil lter wrench, tighten
another half turn.
8. Start the engine, and check for leaks.
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