SUCTION VALVE
LOCATION
(MOTOR BARREL
END)
CYLINDER HEAD
COOLING FAN
MOUNTING STUDS
NAMEPLATE
SIGHT GLASS
CRANKCASE HEATER
(ACCESSORY)
INSERTS
INTO WELL IN
BOTTOM COVER
7/16" - 20 SAE OIL DRAIN CONNECTION (OLDER MODELS HAVE 1/4" NPT)
BEARING HEAD
1/4" NPT OIL FILL
(SUMP) CONNECTION
ALSO LOW SIDE OIL
SAFETY SWITCH
CONNECTION
1/4" NPT OIL PUMP
PRESSURE (HIGH
SIDE OIL SAFETY
SWITCH
CONNECTION)
CYLINDER HEAD
COOLING FAN
MOUNTING STUDS
(06DR MODELS
ONLY)
DISCHARGE
VALVE LOCATION
1/4" NPT HIGH
PRESSURE CONNECTION
1/4" NPT LOW PRESSURE CONNECTION
(BEHIND CYLINDER HEAD)
(DO NOT ADD OIL HERE)
1/8" NPT
OIL PRESSURE TAP
OLD STYLE 06D
BEARING HEAD ASSEMBLY
NOTE: Bolt sizes and thread pitch: Compressors are built using English unit
bolts. The bolts have no exact metric equivalents. Therefore, to prevent possible
cross-threading, loose bolts, or damage to threaded portions of the casing,
comparable metric measurements are not included.
Fig. 11 — 06D 6-Cylinder Compressor (25, 28, 37,
and 41 Cfm) Connection Points