Supplies
The following customer supplied items
are recommended for best results
when installing a heater:
• Heater power demand is 8.3 amps
for 12 vdc and 4.2 amps for 24
vdc. Due to power demand, we
recommend our relay kit for the
safest method of installation. We
offer several relay kits available
from your Racor distributor.
• Refer to the Heater Relay Kit
Selection Guide
• A ON-OFF toggle switch (customer
supplied) may be used to control
power to heater relay. This allows
the operator to cut power to the
heater relay during summer use or
servicing procedures.
• All wires should be 14 AWG
(American Wire Gauge) minimum.
• Threadlocker such as Loctite #242.
• Motor oil, shop towels, clean fuel
and torque wrenches.
Installation
This procedure may be done with
the unit on the vehicle (if space
permits) or on a work bench. When
performing procedure on vehicle,
remove ground cable from battery as
a safety measure before starting.
Note: Use a toothpick to remove
old gaskets that are stuck in the
sealing gland so the surfaces are not
scratched. Clean all sealing surfaces
with a clean, dry cloth.
Refer to Exploded View on page
4 as you read these instructions
and install the heater.
1. Drain all fuel from the Racor by
opening drain valve (item# 17).
2. Remove T-handle (item# 1) and lid
(item# 3), discarding old T-handle
O-ring (item# 2) and lid gasket
(item# 4).
3. Remove filter element (item# 5)
from base/housing (item# 8).
4. Remove the four (4) bowl ring
capscrews (item# 19) and pull the
bowl (item# 15) from the base/
housing (item# 8). You may need
to tap the side of the bowl (item#
15) with a rubber mallet to free it. Remove the rubber bowl gasket (item#
14) and discard. Clean the base (item# 8) gasket gland of any debris with a
soft shop cloth.
5. Grasp the turbine centrifuge (item# 13) with a gloved hand and unthread it
counter-clockwise to remove it. The conical baffle (item# 12) will also come
off with the centrifuge. An aluminum checkball (item# 11) should be inside
it along with a light red colored checkball seal (item# 10).
6. Notice how the checkball seal (item# 10) is positioned within the base
(item# 8)—the radiused side faces toward the checkball—see image below.
Install your new check ball seal at this time in the same orientation so it is
not forgotten in the re-assembly process. Set these parts to the side, you
will use them later.
7. Apply a light coating of motor oil on the o-ring of the 2-wire feed-thru
(item# 9) and insert connector end thru the base port (next to the fuel inlet
port). Tighten the feed-thru housing into the base port. Tighten the 5/8”
feed-thru housing hex (specification: 90 inch pounds). The o-ring will seal
with just light hand tightening.
8. Carefully lower the heater (item# 6) into the filter housing –thermostat end
first - over the center tube and pull the wires
through the correct opening
at bottom of base
(item# 8). See image below.
Conical
Baffle
Checkball
500FG Partial
Cutaway
Base
Seal
Содержание Racor RK15438-01
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