TechFact - Fuel Filter Bowl (RG / UG)

As of August 2014 production, Carrier Transicold Container has implemented a change to the 90 degree fuel filter return
fitting on top of the fuel filter on both UG and RG Genset units going from a reduced flow to a full flow fitting. This
change will reduce the pressure in the filter, reducing the sensitivity to the torque requirement on the filter (18ft / Ibs, 2.5 m-
Kg). The fitting (P/N 74-00318-00) can be added to any RG or UG genset in the field.

In parallel to this, we have developed a tool to be used when replacing the fuel filter. This tool (P/N 07-00537-00) will help
ensure that the fuel filter bowl is torqued appropriately. The torque tool assembly includes a black socket (P/N 07-00537-
11) and torque base (P/N 07-00537-02).

Following is an overview of the instructions to install the fitting and use the new tool.

WARNING : Be sure power is turned off and the negative battery cable is disconnected before
working on the generator set.

A- Instructions for replacing the Fuel Fitting Kit (P/N 74-00318-00) / pictured:

9.
10.
11.

B- Instructions for replacing the Fuel Filter using the Torque Tool Assembly:

1.

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Remove cover from Genset unit.

Drain a few ounces of fuel from filter by turning the black bleed port (drain valve) counter
clockwise.

Remove hose clamp and discard.

Remove hose from fitting.

Remove brass fitting (with orifice) and discard.

Add Teflon pipe sealant to the new fitting (without orifice).

Install the new fitting into the fuel filter head (position fitting to the side of the head
assembly).

Mark top of new fitting with white marker/paint pen to show fitting has been changed.
Inspect hose, if compromised cut off small section.

Reinstall hose and install new clamp.

Reinstall cover.

07-00537-02

a a Z

Bleed the fuel from the filter bowl assembly by turning the black bleed port (drain valve)

counter clockwise 2 turns. Loosen the filter element to provide faster flow.

Close the bleed port (drain valve) once the bowl is empty.

Remove filter element/bowl assembly from the unit using a strap wrench.

Drain any excess fuel from the filter.

Secure tool base (P/N 07-00537-02) and element in a table vise and remove plastic bowl using the
black socket tool (P/N 07-00537-11).

Discard used black bevel cut gasket or used blue O-ring, and lubricate the new filter bowl O-ring
provided in the kit using clean diesel fuel.

Insert the lubricated blue O-ring gasket into the bowl’s O-ring gland/slot.

Step 10

Coat black threads of filter element with clean diesel fuel.

Reinstall the clear bowl until first contact with blue O-ring and filter element.

. Using black socket (P/N 07-00537-11) with torque wrench, torque to 18ft/lbs. / 2.5 m-Kg.

. Lubricate the black element square cut gasket using clean diesel fuel.

. Fill element with clean fuel.

. Reinstall filter element/bowl assembly to the metallic filter head assembly.

. Using a strap wrench, tighten assembly ~% turn after gasket touches the filter head assembly.