Portable Compressor 7/20
9---8
SEPTEMBER 2003
WARNING
DO NOT, UNDER ANY CIRCUMSTANCES, REMOVE ANY
DRAIN PLUGS OR THE OIL FILLER PLUG FROM THE
COMPRESSOR LUBRICATING AND COOLING SYSTEM
WITHOUT FIRST MAKING SURE THAT THE MACHINE IS
STOPPED AND THE SYSTEM HAS BEEN COMPLETELY
RELIEVED OF ALL AIR PRESSURE (REFER TO
8.4. STOPPING THE MACHINE
IN THE
8.OPERATING
INSTRUCTIONS
SECTION OF THIS MANUAL).
Completely drain the receiver/separator system including the
piping and oil cooler by removing the drain plug(s) and
collecting the used oil in a suitable container.
Replace the drain plug(s) ensuring that each one is secure.
NOTE
If the oil is drained immediately after the machine has been
running, then most of the sediment will be in suspension and
will therefore drain more readily.
CAUTION
SOME OIL MIXTURES ARE INCOMPATIBLE AND RESULT IN
THE FORMATION OF VARNISHES, SHELLACS OR
LACQUERS WHICH MAY BE INSOLUBLE.
NOTE
Always specify I---R Pro--- Tec
TM
oil for use at all ambient
temperatures above ---23
˚
C (---11.4
˚
F).
9.21.5.
COMPRESSOR OIL FILTER ELEMENT
Refer to the
Table 9---1. MAINTENANCE SCHEDULE
in this
section for service intervals.
9.22.
RUNNING GEAR WHEEL BEARINGS
Wheel bearings should be packed with grease every 6 months.
The type of grease used should conform to specification
MIL---G---10924.
9.23.
SPEED AND PRESSURE
REGULATION ADJUSTMENT
Normally, regulation requires no adjusting, but if correct
adjustment is lost, proceed as follows:
Refer to the
Figure 9---4 SPEED AND PRESSURE REGULATION
ADJUSTMENT
.
1.
Adjusting screw
2.
Speed control lever
1
2
Figure 9-- 4.
SPEED AND PRESSURE REGULATION ADJUSTMENT
Start the machine (refer to
8.3. STARTING THE MACHINE
in the
8.OPERATING INSTRUCTIONS
section of this manual).
Inspect the throttle arm on the engine governor to see that it is
extended in the full speed position when the engine is running
at full---load speed and the service valve is fully open (refer to the
7. GENERAL INFORMATION
section of this manual).
Adjust the service valve on the outside of the machine to
maintain 7 bar/100 psi without the throttle arm moving from the
full speed position. If the throttle arm moves away from the full
speed position before 7 bar/100 psi is attained, then turn the
adjusting screw clockwise to increase the pressure. Optimum
adjustment is achieved when the throttle arm just moves from its
full speed position and the pressure gauge reads 7.2 bar
(104 psi).
Close the service valve. The engine will slow to idle speed.
