Maintenance; Schedule; Checking The Relief Valve Operation; Inspecting The Check (Non-Return) Valve - Gardner Denver GD150 Installation Operating & Maintenance Manual

5
NOTE
The compressor can be
carefully cleaned with steam
or water jets, but only when
the machine is cold as serious
damage could result.
NOTE
The relief valve should be
operated every month to clear
the valve seat and check the
valve is functional.
(Ear protection is
recommended)
NOTE
If the maximum pressure
reading is higher than the set
pressure by more than 0.2 bar,
stop the test and replace the
relief valve before running the
compressor again.
NOTE
New gaskets may be required
when inspecting the check
valve.
4990616006 Date: 06/16

Maintenance

5.1

Schedule

Daily • Monitor the inlet filter blockage indicator.
Weekly • Clean the fans, fan covers and body ribs.
• Check air filter and pipe work for leaks.
Where the compressor is mounted on a vehicle and located outside, it
should be operated for at least 15 minutes each week (twice a week In
damp/cool conditions)
Monthly • Check Function of Relief and Check (non-return) Valve
• Check inlet and discharge pipe work for leaks.
3 Monthly • Clean filter carcass and element - Air Filter element and
carcass - replace if necessary.
• Check security of compressor feet fixing bolts to both
machine and chassis. Tighten if necessary (M10 bolts -
torque to 35 Nm)
6 Monthly • Check blade wear
Annually • Examine the internals of the check valve
• Examine pipes, silencers and pipework fixings for corrosion
and replace as required
Tamperproof lead seals have been fitted into several cap
screw heads on each of sideplates. Removal of these seals
during the warranty period will invalidate the warranty.
5.2

Checking the relief valve operation

Check the relief valve operation as detailed in section 4 and visually check
for any sign of obvious defects.
5.3

Inspecting the check (non-return) valve

The check (non-return) valve should be removed and visually checked for
signs of wear. If in any doubt, replace the entire valve.
5.4 Silencers / Pipe work
Silencers (if fitted) and pipework should be inspected for signs of damage
or corrosion. When paintwork is damaged, clean off any corrosion and
treat with rust inhibitor before repainting. Use paints that can withstand
temperatures of 180°C.
5.5

Lubrication

The bearings are packed with grease on assembly and need no regular
attention.
Any additional greasing of the bearings (see service instructions) should only be
undertaken using Petamo GHY 443.
GD150 Installation, Operating & Maintenance Manual
and located outside, it
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