4
Frequency of filter replacement is
determined by the contamination
level of the fuel. Replace filter
every 10,000 miles, every 500
hours, every other oil change, when
vacuum gauge (optional) reads
between 6 to 10 inches of mercury
(inHg), if power loss is noticed, or
annually, whichever occurs first.
Note: always carry extra
replacement filters as one tankful
of excessively dirty fuel can plug
a filter.
1. Bypass filter assembly with
bypass valves, if applicable.
2. Remove T-handle and lid.
3. Remove filter by holding bail
handles and slowly pulling
upward with a twisting motion.
Dispose of properly.
4. Replace old lid gasket and
T-handle O-ring with new
seals (suppled with new filter).
Lubricate both seals with clean
motor oil or diesel fuel before
installation.
5. Refer to
Priming Instructions
otherwise, fill filter with clean
fuel, then replace lid and
T-handle and tighten snugly by
hand only—
do not use tools.
Element Replacement
Note: above ground tanks or
transfer pump applications may
use head pressure to prime filter.
2020N
2040N
Installing Optional In-Filter Heater
Please read and understand all
instructions prior to installation.
The in-filter heater option is a
cold weather starting aid with an
internal automatic thermostat that
turns the heater ON when the fuel
temperature drops below 50°F
(10°C) and turns OFF when the
fuel reaches 80°F (27°C). Heat
is supplied in the filter assembly
just below the replacement filter
to melt wax crystals and allow
fuel to pass through the filter for
quick, easy starting. The 325 watt
heater is operated by turning the
ignition switch ON for a minimum
of five minutes prior to starting
the engine.
HEATER WIRING
INSTALLATION
Caution! Please read carefully
before beginning installation.
See schematic on next page.
1. Never power up the heater if
there is no fuel in the Racor
filter,
severe damage
may
result to the heater and filter
assembly.
2. During equipment or vehicle
servicing, always ensure
power to the Racor heater is
turned off. We recommend
the installation of a customer-
supplied power control switch
(see electrical schematic).
3. Check contaminant collection
bowl daily for accumulated
water. Water is heavier than
diesel fuel and will fall to the
bottom of the bowl. Drain
water before the level reaches
the bottom of the turbine
centrifuge. Do not allow water
to rise to the level of the
heater.
4. Ensure wiring installation
diagram is closely followed and
the proper safety fuse is used.
If a fuse should fail, determine
the cause and correct it before
installing a new fuse and using
the heater again.
5. Exterior wiring connections
should be soldered, crimped
and sealed for protection
against shorting.
6. Route wires in protected
locations, away from hot
or moving surfaces and
places that could expose
them to chemical contact or
environmental debris.
7. Inspect all wiring and
connections for unsafe
conditions annually or every
12,000 miles, whichever occurs
first.
8. Study the wiring schematic
before starting. Due to the
power consumption of the
heater (12 vdc = 27 amps, 24
vdc = 13.5 amps) an external
relay is required. Racor offers
relay kits for this application;
refer to the Heater Relay Kit
Selection Guide, below. Racor
Relay kits include instructions
on how to attach them to the
Racor heater.
See schematic on next page.
