Installing The Pressure Relief Oil Line Back To The Tank - Saturn 125 Operator's Manual

Installing the 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.
Operator's Manual: Models Saturn™ 140 & Saturn™ 230
# PART #
1 32475
2 32526
3 INSTALLER SUPPLIED
4 INSTALLER SUPPLIED
5 INSTALLER SUPPLIED
6 INSTALLER SUPPLIED
7 32037
5
4
3
2
1
Figure 4K - Pressure Relief Oil Line Back to the Tank
DESCRIPTION
METERING PUMP HEAD (7720)
MINI BALL VALVE 1/8 MNPT X 1/8 FNPT
1/8 MNPT X 3/8 OR 1/2 FLARE
3/8 OR 1/2 COPPER OR ALUM. TUBING
3/8 OR 1/2 TUBE FLARE NUT
1/4 COPPER OR ALUM. TUBING
1/8 MNPT X 1/4 TUBE COMP. FITTING
6
7
4-16