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4990616006 Date: 06/16
GD150 Installation, Operating & Maintenance Manual
4
Tick when completed
Commissioning
4.1
Pre-operating check list
Flexible and welded pipe bores etc cleaned after fabrication.
All flanges, fasteners and mountings secure.
Vehicle PTO disengaged.
Engine management system set-up correctly for the application.
Blow (ball) valve open (if starting against a tank pressure).
Commissioning/testing 1.5 - 2”gate valve and silencer fitted.
Discharge pressure gauge fitted (0-3 bar g)
Ancillaries correctly fitted and sequenced as per instructions
1 Check that the gate valve on the discharge pipework is open.
2 Start the engine, depress the clutch and allow the vehicle
gearbox parts to stop rotating (5 seconds should be sufficient).
3 Engage the PTO and slowly raise the clutch, then set the engine
speed to drive the compressor at the operating speed of the
application.
Note: The compressor input speed range is 1000 - 1600 rpm.
4 Check that the inlet blockage indicator does not indicate (show
red) a blocked filter/inlet pipe work (see inlet filter section)
5 Whilst the compressor is operating, check the pipe work for
leaks. Stop the machine and tighten fasteners if necessary.
6 Partially close the gate valve to raise the discharge pressure to
0.2 bar below the relief valve full bypass setting (stamped on
relief valve). Check the system for leaks. Stop the machine and
tighten fasteners if necessary.
7 If all is well, continue to run the compressor until the total test
time reaches 30 minutes. Re-check for air leaks.
8 Slowly increase the pressure beyond the stamped setting
(on valve) to operate the relief valve.
The relief valve should crack (begin to lift/open/blow off) within
10% below the set pressure. Slight leakage prior to cracking is
permitted at up to 0.5 bar g below the set pressure.
The relief valve should then fully open (full bypass) at within 5%
of the set pressure.
9 Slowly reduce the pressure until the relief valve re-seats (should
be before 0.5 bar g (7 psi) under the full bypass pressure).
10 Check that all fastenings are still tight and flanges are leak free.
11 Return the engine speed to tick over, disengage the PTO, and
then stop the engine.
12 Remove any test apparatus, disconnect discharge hose and fit a
blanking cap.
4.2 Test and operating procedure
Max. Discharge Pressure
2,5 bar g (36 psi)
Max. Inlet Depression
50mbar under all
circumstances.
CAUTION
Gardner Denver Drum’s
own tests show noise levels
fall between 81-86 dB(A) at
1 metre and ear protection
is recommended for long
periods of exposure.
Never start the compressor
against a pressurised tank or
discharge line.
CAUTION
Tick when completed
CAUTION
Pipework will become HOT
during test/running.
