Operator's Manual: Models Saturn™ 140 & Saturn™ 230
4-16
Installing the Pressure Relief Oil Line Back to the Tank
Figure 4K - Pressure Relief Oil Line Back to the Tank
ATTENTION: It is critical that you adhere to the following specifications for plumbing the pressure relief
back to the tank.
The metering pump requires the installation of a pressure relief oil line back to the tank that you are pulling oil
from as shown in Figures 4H, 4J, and 4K.
• The pressure relief will open and relieve pressure if there is a restriction in the pressure oil line,
clogged nozzle, etc.
Be sure to use Permatex #2 non-hardening gasket sealer to seal every threaded fitting. DO NOT use teflon
tape or teflon pipe dope compounds.
1. Refer to Figure 4K.
2. Remove the plug from the relief port on top of the metering pump head.
3. Install the 1/8 NPT x 1/4 tube compression fitting in the relief port on top of the metering pump head.
4. Install 1/4" O.D. copper tubing (user-supplied) from the pressure relief port back to the oil tank.
Refer to Figure 4J as needed.
# PART # DESCRIPTION
1 32475 METERING PUMP HEAD (7720)
5 INSTALLER SUPPLIED 3/8 OR 1/2 TUBE FLARE NUT
6 INSTALLER SUPPLIED 1/4 COPPER OR ALUM. TUBING
3 INSTALLER SUPPLIED 1/8 MNPT X 3/8 OR 1/2 FLARE
4 INSTALLER SUPPLIED 3/8 OR 1/2 COPPER OR ALUM. TUBING
7
3
1
7 32037 1/8 MNPT X 1/4 TUBE COMP. FITTING
2
4
5
6
2 32526 MINI BALL VALVE 1/8 MNPT X 1/8 FNPT
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