© HAMM AG 2009 73
MAINTENANCE
3.9 MAINTENANCE ONCE EVERY 2000 OPERATING HOURS, AT LEAST ONCE A YEAR
(see also engine operating instructions)
Perform all maintenance work as described
under 10, 250 and 500 operating hours. Ad-
ditionally:
General:
After longer standstill periods (e.g. winter)
perform the following maintenance works
prior to start of usage. Condensed water
and dirt deposits can impair the function of
the engine and of the hydraulic system.
3.9.1 Replacement of hydraulic oil
• Unscrew purge filter A.
• Screw out oil drain screw B at the bottom
of the oil tank and let the used oil drain out.
• Screw in oil drain screw and tighten.
• Fill up specified oil through filling spout.
• Correct oil level: Between the Min. and
Max. there is a mark on the dipstick which
applies when the purge filter is screwed in
Do not exceed this oil level!
• Start the engine, actuate driving lever
(501) with low engine speed until the drive
activates, furthermore actuate the steer-
ing.
• Pipes and hoses are filled with oil and
purged.
• Check oil level with the motor at a stand-
still, please fill up oil as necessary.
Danger of burning or scalding!
Do not use cleaning rag for cleaning!
Catch used oil in a receptacle and dispose
of properly! Do not let it seep away into the
ground!
15114-10
MAX
MIN
A
15010-10
B
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