Gardner Denver GD150 User manual

S er vice
Instru ction
Man ual
GD150
ROTARY VANE
COMPRESSOR
4990716000
November 25, 2014

Page 2
Contents
Chapter
Page
1 Health & Saf et y
Health & Safety Issues ....................................................................................................................................................... 3
2 G ener al
2.1 Identification..................................................................................................................4
2.2 Precautions........................................................................................4
2.3 Inspections ........................................................................................4
3 Blade R eplac emen t
3.1 Blade Removal ....................................................................................5
3.2 Blade Replacement ............................................................................6
4 Sideplate A ssemblies
4.1 Removing the Drive Coupling ..............................................................7
4.2 Cowl Removal .....................................................................................8
4.3 Fan Removal.......................................................................................8
4.4 Sideplate Removal ............................................................................9
4.5 Bearing and/or Seal Removal ............................................................10
4.6 Sideplate Re-assembly ....................................................................12
5 R ot or Assembly
5.1 Removing the Rotor Assembly ...........................................................15
5.2 Bearing Inners ...................................................................................15
5.3 Refitting the Rotor Assembly ................................................................16
6 Setting Clear ances
6.1 Free Movement Check .......................................................................17
6.2 Establishing Shim Pack Size ...............................................................17
6.3 Checking Side Plate Clearance ..........................................................18
6.4 Checking the ‘Float’ ............................................................................18
7 T echnical Data .....................................................................................19
8 R eplac emen t parts ...................................................................20 -21
Compressor parts...................................................................................22-23
W ar r an t y
One screw in each bearing housing cap and
Side plate is fitted with a lead plug. Removal of these will invalidate the
warranty if the machine is still within that period.

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1
Health & Safety
SERVICING.
READ THE WHOLE MANUAL BEFORE COMMENCING AN Y
ENSURE THE DRIVE TO THE MACHINE CANNOT BE ENGAGED
WHILST SERVICING IS IN PROGRESS
Static elec tr icit y .
Ensure, that where required, the compressor and ancillaries are earthed
In accordance with BS5958 Part 1 1983; ‘Control of Undesirable Static
Electricity’.
Powder-air combinations are potentially explosive.
Drive line .
It is the responsibility of the installer of the equipment to ensure that all
Rotating and moving parts of the installation are adequately guarded to
a standard which complies with the prevailing safety legislation.
C ompressor .
The compressor has internal moving parts, some of which may be accessed
Through the inlet and outlet apertures. Do not place any objects especially
fingers into these apertures since personal injury could result.
I nstallation.
A relief valve must be fitted in the outlet pipe work as close to the
compressor as possible. The valve must be positioned so as not to vent air
on to any personnel since the air discharged will be hot and can cause
severe burns.
S er vic e .
The compressor and other installed components may contain accumulated
dust. Appropriate respiratory protection is recommended in line with
normal safe working practices.
F ir e .
The compressor includes seals made of fluoroelastomer polymers which
degrade if exposed to temperatures above 300°C. If the material has been
so exposed then it must not be handled with bare hands.
Relief V alv e Check
This procedure should be carried out every month to clear the valve seat and
check the valve is functional. (Ear protection is recommended). Function of
the relief valve should always be checked after major servicing.
In
accordance with our policy of continuous product improvement, Gardner Denver
Drum reserve the right to alter details and specifications without notice.

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2
General
2.1
Iden tifica tion
The
body number of the machine is shown on the body number
label, attached to the machine.
Body numbers are also stamped along one of the compressor body
corners/ edges next to the ‘T’ (Tested) stamp.
The suction / delivery ports and the direction of rotation are clearly
marked to permit the orientation to be identified.
CAUTION
Oil, grease or dirt must not
be allowed to enter the
internals of the machine.
2.2 P r ecautions
The exterior of the machine and ancillaries should be
steam cleaned prior to removal from the vehicle and /or
before commencement of any dismantling.
All mating parts should be marked during dismantling
to ensure correct re-assembly.
2.3 I nspection (prior to servicing)
Excessive radial movement of the machine drive shaft
indicates bearing wear, with the result that the rotor may
have damaged the bore of the body or the faces of the
side plates. If this is the case, the machine should be
returned to the Gardner Denver Drum representatives
for examination and possible refurbishing.
See installation, operating & maintenance
instructions to check the blade wear status.