Maintenance - Bottarini GDP21 Maintenance And Operating Manual

9. Maintenance

9.1 General maintenance
Danger
Install a "Caution maintenance work"
warning sign and cordon off a wide
area around the workplace before
starting any work.
During inspection, adjustment, or
maintenance work, remember that the
surfaces of machine parts can be hot,
particularly the exhaust system (risk
of burning) and that the control device
may move during operation (risk of
crushing).
Clean the screw compressor at regular,
not too long intervals:
* Blow-clean all valves, controllers,
fittings, pressure tank, oil cooler,
radiator, screw compressor, and
engine with compressed air or a steam
jet appliance.
* Inspect the cooling ribs of the radiator
to make sure that air can pass through.
* Clean the body at regular intervals.
Then grease or oil the hinges of the
body hood with multi-purpose grease.
If sound-absorbing matting has to be
replaced, remove the retaining brackets,
replace the old sound-absorbing matting
with new matting, replace the retaining
brackets.
30
9.2 Engine maintenance
The maintenance of the engine is to be
carried out in accordance with the engine
operating manual.
Attention
In addition to the maintenance
intervals given in the engine operating
instruction the following items apply
after 50 operating hours after the start-
up of new or overhauled engines:
* Check engine for leaks,
repair if necessary
* Change engine oil
* Replace oil filter cartridge
* Changing the fuel filter cartridge
and advance fuel filter
* Check tappet clearance,
adjust if necessary
* Check engine mounts,
tighten if necessary
*
Check V-belt, tension if necessary
Full load speed is factory-set by the
manufacturer and must not be
modified.
The idling speed must not be changed
either, as this might cause serious
damage to the screw compressor,
e.g. damage to the coupling!
9.3 Maintenance of the fuel
system
Fig. 31
1 Fuel tank - Filler socket
2 Fuel prefilter
3 Electrical fuel pump
4
Fuel filter with fuel/water separator
Advance fuel filter (2)
The filter changing intervals are
specified in the engine manual. Change
the advance filter more often if there is
considerable dirt.
Danger
Change filters only with the engine off
and in cool condition.
Do not spill fuel.
Note
Ensure the system is free from leakage.
Check the hoses for cracks and replace
if necessary.
Changing the advance fuel filter:
* Release the clamps.
*
Draw the ends of the hoses off.
* Insert a new filter.
* Fit the hose ends.
*
Fasten the clamps.
* Dispose of contaminated filters in
accordance with the regulations.
Attention
The fuel system must be bled in
accordance with the engine operating
manual!