necting them to the compressor. Use a new dis-
REMOVING AND INSTALLING
charge fitting gasket.
REMOVING
A l i g n compressor drive and adjust proper belt
tension.
These instructions are general and in some cases
additional precautions must be taken.
Tighten mounting bolts securely and evenly.
Drain air brake system.
After installation run compressor and check for
air, oil, or water leaks at compressor connections.
Drain engine cooling system, compressor cylin-
Also check for noisy operation.
der head and block.
Disconnect all air lines, water and oil lines to and
DISASSEMBLY
from compressor.
Clean compressor exterior of road dirt and grease
using a good cleaning solvent.
Remove compressor mounting bolts and com-
pressor from engine.
Before compressor is completely disassembled
the following items should be marked to show their
Use a gear-puller to remove the gear or pulley
relationship when the compressor is assembled:
from compressor crankshaft.
The cylinder block in relation to crankcase.
INSTALLATION
End covers' relation to crankcase.
Clean oil supply line. Before connecting this line
to the compressor run the engine briefly to be sure
Position of crankshaft in relation to crankcase.
oil is flowing freely through the supply line.
The cylinder head's relation to the block.
C l e a n the oil return line or return passages
t h r o u g h the brackets; these passages must be un-
restricted so oil can return to the engine.
Prelubricate compressor cylinder walls and bear-
ings with clean engine oil before assembling com-
pressor.
Always use a new mounting gasket and be sure
oil hole in gasket and compressor is properly
aligned with oil supply line.
Inspect pulley or gear and associated parts for
wear or damage. They must be a neat fit on com-
pressor crankshaft. Replace pulley or gear if worn
or damaged.
Figure 7
Cylinder Head-Exploded View
Install pulley or gear on compressor crankshaft
making sure it properly contacts the shaft and does
CYLINDER HEAD (Fig. 7)
not ride the key. Tighten crankshaft nut securely
and install cotter pin.
Remove cap screws and lift off cylinder head. It
may have to be tapped with a rawhide hammer to
Be sure the air cleaner is clean and properly in-
break gasket joint.
stalled, If the compressor intake is connected to
either the engine air cleaner or supercharger, these
Remove inlet valve springs from head and inlet
connections must be tight with no leakage.
valves from their guides in the block.
C l e a n or replace any damaged or dirty air or
Scrape off cylinder head gasket from cylinder
water fines which may be corroded, before con-
head and block.
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