© HAMM AG 2009 71
MAINTENANCE
3.8 MAINTENANCE ONCE EVERY 500 OPERATING HOURS
(see also engine operating instructions)
Perform all maintenance work as described
under 10 and 250 operating hours. Addi-
tionally:
3.8.1 Replacing the filter insert for the
hydraulic system
• Unscrew the cup-shaped housing.
• Pull the filter insert from the filter head and
replace with a new one.
• Clean the inside of the cup-shaped hous-
ing from dirt deposits, screw it back to the
filter head and tighten.
3.8.2 Replacing the preliminary fuel
filter
• Loosen the hose clamps B on both sides
and pull off the fuel hose from the used fil-
ter A.
• Plug on new the filter and tighten the hose
clamps. Observe the flow direction!
Danger of burning or scalding!
15121-10
Increased fire hazard during fuel handling!
Do not smoke! No open fire during works
at the fuel system! Catch spilling fuel, do
not let it seep away into the ground!
15009-10
BAB
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