Control - Bottarini GDP21 Maintenance And Operating Manual

9. Maintenance

9.5.7 Control

Fig. 38
The control system takes the form of a
stepless speed/volumetric flow regulation
system. It consists of:
* The intake control valve,
* The engine control cylinder,
* The regulator.
The intake control valve comprises:
*
the control piston / check valve piston
for the volume flow-rate throttle control
and for preventing flooding of the
suction control valve and the air filter
with oil when the screw compressor is
switched off.
9.5.8 Battery maintenance
Fig. 39
Danger
The gases released by the battery are
explosive.
Avoid sparks and open fires in the
vicinity of the battery.
Do not allow acids to come into contact
with skin or clothing. Wear safety
goggles.
Place no tools on the battery.
The battery is maintenance-free in
accordance with DIN.
Attention
Check the acid level after a maximum
of 1,000 operating hours, or after
24 months, whichever occurs first, and
fill up with distilled water if necessary.
For battery maintenance please also
refer to the manufacturer's instructions
and the engine operating manual.
9.5.9 Torque specifications
The following tightening torques apply to
screwed connections:
Wheel screws
Pressure vessel cover
Safety valve
Engine bearing/
rubber metal element
Compressor bearing/
rubber metal element
Rubber metal element / frame
Chassis mounting screw
suspension / frame
property class 12.9
(Durlok screw)
property class 8.8
suspension cross girder
hose clips
(engine, compressor/cooler)
hose clips
(compressor/pressure container)
9.6 Spare parts for maintenance
purposes
Designation
Service Package 1000 h
GDP21-GDP31
Service Package 1000 h
GDP21-GDP31
(air-oil separator)
Spare parts list
Service parts
90 Nm
Filter element
13 Nm
Spare filter
50 Nm
Spare cartridge for fuel filter
Fuel line filter
90 Nm
Spare cartridge for motor oil
filter
90 Nm
Air-oil separator el
50 Nm
Seal
90 Nm
169 Nm
169 Nm
90 Nm
3 Nm
30 Nm
Identification No.
A19052574
A19051574
100009334
A13306974
A04819974
100012359
100008391
100008389
ement 100007223
A93185860
35