water separator protects the
precision components of your
engine from dirt, rust, algae,
asphaltines, varnishes and
especially water, which is
prevalent in low distillate fuels.
Contaminants are removed from
fuel using the following legendary
three stage process:
Stage 1—Separation
Using the fuel flow, the stationary
turbine separates large solids and
free water through enchanced
centrifugal force.
Stage 2—Coalescing
Smaller water droplets and solids
coalesce on the conical baffle and
fall to the collection bowl.
Stage 3—Filtration
Engines will benefit from near
100% water separation and fuel
filtration with Racor’s proprietary
Aquabloc® water repelling media.
The replaceable filters are
available in 2, 10, and 30 micron
ratings.
Note: Mount lter assembly as close to vertical (V) as possible.
Do not exceed 10° from vertical or assembly may not function
properly. Fastener size is 3/8" (M10) for mounting brackets.
4.5 in
(11.4 cm)
10°
V
10°
90°
5.8 in.
(14.7 cm)
1000 Models
4.5 in
(11.4 cm)
5.0 in
(12.7 cm)
10.9 in
(27.7 cm)
Adjustable
by ±2.1 in.
(5.3 cm)
Adjust mounting brackets (900 models have
one, 1000 models have two) for a secure fit.
Installation Diagram
Optional Bypass Installation and Operation
(allows user to service filter without shutting down engine.)
Valves123
Unit On-lineOpenOpenClosed
Unit Off-lineClosedClosedOpen
Suction (vacuum) Side:
Primary (first) filter - use 30 micron.
If it is the only filter in the system,
use 2 or 10 micron.
Engine
Fuel transfer pump
(IDEAL vacuum side installation)
Maintain a clearance
above the filter assembly
of 5 in. (12.7 cm) (900MA),
and 10 in. (25.4 cm) (1000MA)
for filter removal.
Valve 3
Maintain a service clearance below
filter assembly of at least 2 in. (5.1 cm)
for draining and servicing bowl.
Pressure Side:
Fuel transfer pump not to exceed
maximum PSI or flow rate of filter.
Not ideal - pumps emulsify water
hindering filter performance.
Valve 1Valve 2
Fuel tanks above filter
head pressure should not
exceed maximum PSI of filter.
Fuel Tank
(Pressure Side Installation)
Install a shut-off valve when
fuel tank is higher than filter
Fuel Tank
(Ideal Vacuum
Side Installation)
Install a check valve
(with light or no restriction)
when tank is lower than filter
to maintain prime.
Fuel Tank
(Vacuum Side Installation)
Fuel tank below filter
Do not exceed 5’ (1.5m) of lift
or 4 inches of mercury (inHg)
of inlet piping restrictions
Page 3
Installation Guidelines
These customer supplied
materials should be on hand
before beginning installation.
• Shop Towels
• Mounting Hardware (3/8”)
• Inlet/Outlet Fittings
• Fuel Hose
• Clean Diesel Fuel (about 1 gal.)
• Clean Motor Oil
• Thread Sealant (no thread tapes)
Positioning The Filter Assembly
Install filter assembly on suction
side of fuel transfer pump for
optimum water separating
efciency. See Installation Diagram.
Keep fuel line restrictions to
a minimum. Locate the filter
assembly between horizontal
planes of the bottom of the fuel
tank and inlet of fuel pump, if
possible. If filter assembly is
installed in an application where
the fuel tank is higher than the
filter, a shut-off valve must be
installed between the tank and
filter assembly INLET. This will
be used when servicing the
replacement filter.
BEFORE Installing The Filter
Assembly
• Obtain good ventilation and
lighting.
• Maintain a safe working
environment.
• Engine must be off for
installation.
• DO NOT smoke or allow open
flames near installation.
Installing The Filter Assembly
•Completelyremoveanysuction
side filters in fuel system
between fuel tank and fuel
pump. This is where the Racor
filter will mount. Leaving these
filters in place will add to fuel
system restriction. Filter heads
cast into the engine or that are
non-removable or hard piped
should be serviced with a new
filter and left in place.
•Keepfuelflowrestriction
to a minimum. Always use
the maximum size fuel hose
possible. Do not make sharp
bends with flexible hose as kinks
may occur. Avoid use of two 45°
elbow fittings where one 90°
elbow will work.
•Whenroutinghose,avoid
surfaces that move, have sharp
edges, or get hot (such as
exhaust piping).
•Avoidusingone-waycheck
valves that have an opening
pressure higher than 0.5 PSI
(0.03 bar).
Priming Instructions
1. Remove T-handle and lid from
top of filter assembly.
2. Fill filter with clean fuel.
3. Lubricate lid gasket and
T-handle O-ring with clean fuel
or motor oil.
4. Replace lid and T-handle and
tighten snugly by hand
only—do not use tools.
5. If applicable, refer to
equipment operator’s service
manual to complete fuel
priming procedure.
6. Start engine and check for
fuel system leaks. Correct as
necessary with engine off and
pressure relieved from filter
assembly.
Service Instructions
Draining Water
Frequency of water draining is
determined by the contamination
level of the fuel. Inspect or drain
collection bowl of water daily or as
necessary. Collection bowl must
be drained before contaminants
reach the bottom of the turbine
(inside the bowl), or when the
WaterDetectionModule(optional)
indicates a drain is required.
Suction Side
Applications
1. Close inlet valve (or valve #1)
and open self-venting drain on
bottom of bowl.
2. Close drain after all water
and contaminants have been
evacuated—DO NOT leave
drain open too long as it will
eventually completely drain
entire filter of water AND fuel.
3. Follow Priming Instructions.
Pressure Side
Applications
1. Open self-venting drain
on bottom of bowl. Head
pressure will push any water
and contaminants out of drain
while keeping filter primed.
2. Close drain after all water
and contaminants have been
evacuated—DO NOT leave
drain open too long as it will
eventually completely drain
entire filter of water AND fuel,
and possibly drain entire tank.
Page 4
Filter Replacement
Frequency of filter replacement is
determined by the contamination
level of your fuel. Replace filter
every 500 hours, every other oil
change, when vacuum gauge
(optional) reads between 7 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.
Use only genuine Racor Aquabloc®
replacement filters—see Part List.
All Applications
1. Isolate the filter assembly with
bypass or shut-off valves, if
applicable.
2. Remove T-handle and lid.
3. Remove filters by holding bail
handles and slowly pulling
upward with a twisting motion.
Dispose properly according to
local regulations.
4. Remove and discard old lid
gasket and T-handle O-ring and
clean seal glands of any dirt or
Specifications
Maximum Flow Rate:
debris. Lubricate new gasket
and seal (supplied with new
filter) with motor oil or diesel
fuel before installation.
5. Refer to Priming Instructions,
otherwise, fill unit with clean
fuel, replace lid and T-handle
and tighten snuggly by hand
only—do not use tools.
6. Open any closed valves; if
applicable.
Note—above ground tanks or
transfer pump applications may
use head pressure to prime filter
assembly.
900MA
or
900MAM
90 GPH (341 LPH)180 GPH (681 LPH)
1000MA
or
1000MAM
Port Size
Min. Service Clearance:
Above Assembly
Below Assembly
Bowl Drain fitting Kit (includes 12a, 12b,
and 12c)
Tighten 30 in. lbs (3.39 Nm) max.
Bowl Fasteners (4ea.)
Tighten 60 in. lbs (6.78 Nm) max.
1
1a
2
2a
3
4
A
6
7
8
9
10a
10
11a
11
12b
12c
13
12
12a
14
15
5
5a
1
1
RK 21069 (water sensor for MA units)
RK23191 (water sensor for MAM units)
16
Page 6
Troubleshooting
Damaged, worn, or dirty seals will allow air ingestion.
Inspect and replace all seals as needed. Clean the sealing
surfaces of dirt or debris every time the filter is replaced.
Hand tighten T-handle only! Do not
use tools for leverage.
If filter is changed or assembly
drained for any reason, reprime
assembly. Fill to just above
top of filter before replacing
lid. It is normal for the fuel
level to drop during use. This
is especially apparent at filter
element change-out.
Do not overtighten carriage
bolt as this may distort the
bracket position.
Do not over tighten selftapping capscrews to avoid
stripping out body threads.
After disassembly, start
threads by hand prior to using
tools. Tighten to 55-65 in. lbs.
The hollow aluminum checkball
floats up against the seal when
fuel is stopped, preventing
fuel bleed-back. If unit looses
prime, inspect upstream hose
connections first, disassemble
unit to inspect seal and ball.
(It is normal to hear a "rattling"
sound at any time).
Air bubbles or fuel leakage
appearing from drain may indicate
drain is not closed completely
or seal has been clogged
with contaminants. Tighten or
disassemble and inspect. Tighten
to 30-35 in. lbs.
Replace T-handle o-ring and lid
gasket with each filter element
replacement.
Replace filter every 500 hours, every
other oil change, annually, or at first
indication of power loss, whichever
occurs first.
Filter safety valve
SAE O-ring ports should have a
smooth angled seat for sealing.
Do not scratch this surface. Check
O-ring for damage.
Optional heater port not used on
marine models. Plug feed-thru O-ring
must not be damaged or swollen.
Tighten to 15-20 in. lbs.
Air bubbles appearing from turbine
are an indication of an upstream
leak between Racor inlet and fuel
tank pick-up tube.
Drain water (if present) before it
gets to this level. At some time, the
see-thru contaminant collection
bowl may become dirty on the
inside. Remove the four bowl ring
capscrews and drop the bowl. Clean
the inside with hot soapy water,
dry off and re-install. Ensure bowl
gasket is cleaned, and lubricate with
silicone grease prior to reuse.
A plug is installed as standard,
butcanbereplacedwithaWater
Sensor. Tighten to 15-20 in. lbs.
The water sensor (if equipped)
should activate when water
contacts tips. Air bubbles or fuel
leakage appearing from sensor
may indicate it is loose or O-ring is
damaged. Tighten to 15-20 in. lbs.
Page 7
Troubleshooting
Note—Correct external fuel
leaks immediately! These
conditions are dangerous and
are a fire hazard. Additionally,
reduced engine performance
such as: hard starting,
stalling, reduced power, and
other associated problems
will result.
New filter installations
must be filled with fuel
and fuel system must be
adequately primed following
the engine manufacturer’s recommendations, if
applicable. Existing installation
difficulties are usually
associated with improper
priming procedures or damage
to the unit or fuel system.
The result is either internal
air suction or external fuel
leakage. Diagnosis should be
in these following steps:
1. Check fuel tank level and
make sure any fuel delivery
valves are in open position,
as applicable.
2. Ensure T-handle, bowl
fasteners, and fuel fittings
are tight. Also verify that
bowl drain is closed.
3. If filter is new, check
potential restriction at fuel
tank draw tube. An in-tank
strainer may be plugged.
Correct Application—It is
very important that filter is
not ‘under specified’ for the
application. The maximum
fuel flow rating of filter must
not be exceeded and engine
manufactures maximum fuel
inlet restriction, must not be
exceeded. Doing so will reduce
efficiency and de-gas (pull air
from) fuel.
Filter—Replacement filters
are available in 2, 10, and 30
micron ratings. Filtration needs
are based on application,
fuel quality, maintenance
schedules, and operating
climates. A simple rule to
remember is, the finer the
filtration (i.e. the smaller the
number), the more frequent
the filter change. Always carry
extra replacement filters with
your equipment as one tankful
of excessively contaminated
fuel can plug a filter.When
clogged to the maximum
capacity, filters will have a
brown to black color or tar like
contaminants may be present
- this is normal. An appearance
of a multi-colored slime (which
may have a foul odor) is an
indication of microbiological
contamination. This condition
must be treated immediately.
Severe conditions must be
corrected by a repair facility.
Note—Never operate Racor
unit without the filter in place
- the 'filter safety valve' will
not expose outlet hole on fuel
return tube if filter is removed
and fuel will not flow to engine.
Instead, punch emergency tab
on the top of filter and leave in
place. Puncturing emergency
tab will bypass all filtration and
send unfiltered fuel to your
engine. Service filter as soon
as possible to avoid harmful
contaminants flowing
downstream to engine.
Water Sensors—This feature
alerts operator of a highwater condition. The bowl
is then drained of water at
earliest convenience. Note
- a Racor water detection
module is needed to work
with the in-bowl sensor. The
unit should activate when
water reaches sensor tips (and
when they measure between
47,000 and 100,000 ohms
of resistance, depending on
detection module used.) If
not, tips may be fouled with a
coating. Remove water sensor
and clean tips with a cloth.
Run a jumper wire between
tips with ignition ON to test
system. Difficulties usually lie
in the wire connections, power
source, or an independent
ground.
All Racor filter assemblies
are 100% tested to ensure a
leak-proof, quality product.
Note—Correct external fuel
leaks immediately! In the event
difficulties are experienced
with your filter assembly or a
problem appears to prevent the
engine from running smoothly,
refer to the procedures on
the previous page. Note—
Apply Parker Super O-lube
(part number RK31605) or
equivalent to all seals at major
attachment points to maintain
integrity, seal elasticity, to fill
small voids, and to provide
protection from degradation.
Perform all checks with
engine OFF (and applicable
valves closed). For
replacement parts, refer to
the Part List section of this
manual.
Page 8
Limited Warranties Statement
All products manufactured
or distributed by Racor are
subject to the following, and
only the following, LIMITED
EXPRESS WARRANTIES, and
no others: For a period of
one (1) year from and after
the date of purchase of a new
Racor product, Racor warrants
and guarantees only to the
original purchaser-user that
such a product shall be free
from defects of materials
and workmanship in the
manufacturing process. The
warranty period for pumps and
motors is specifically limited
to ninety (90) days from date of
purchase. A product claimed to
be defective must be returned
to the place of purchase. Racor,
at its sole option, shall replace
the defective product with a
comparable new product or
repair the defective product.
This express warranty shall be
inapplicable to any product not
properly installed and properly
used by the purchaser-user
or to any product damaged or
impaired by external forces.
THIS IS THE EXTENT OF
WARRANTIES AVAILABLE
ON THIS PRODUCT. RACOR
SHALL HAVE NO LIABILITY
WHATSOEVER FOR
CONSEQUENTIAL DAMAGES
FLOWING FROM THE USE OF
ANY DEFECTIVE PRODUCT
OR BY REASON OF THE
FAILURE OF ANY PRODUCT.
RACOR SPECIFICALLY
DISAVOWS ALL OTHER
WARRANTIES, EXPRESS
OR IMPLIED INCLUDING,
WITHOUT LIMITATION, ALL
WARRANTIES OF FITNESS
FOR A PARTICULAR PURPOSE
(EXCEPT FOR THOSE WHICH
APPLY TO PRODUCT OR
PART THEREOF THAT IS
USED OR BOUGHT FOR USE
PRIMARILY FOR PERSONAL,
FAMILY, OR HOUSEHOLD
PURPOSES), WARRANTIES OF
DESCRIPTION, WARRANTIES
OF MERCHANTABILITY,
TRADE USAGE OR
WARRANTIES OR TRADE
USAGE.
Warning
Failure or improper selection
or improper use of the
products and/or systems
described herein or related
items can cause death,
personal injury and property
damage. This document and
other information from Parker
Hannifin Corporation, its
subsidiaries and authorized
distributors provide product
and/or system options for
further investigation by users
having technical expertise.
It is important that you
analyze all aspects of your
application and review the
information concerning the
product or system in the
current product catalog. Due
to the variety of operating
conditions and applications
for these products or systems,
the user, through its own
analysis and testing, is solely
responsible for making the
final selection of the products
and systems and assuring that
all performance, safety and
warning requirements of the
applications are met.
The products described
herein, including with
limitation, product features,
specifications, designs,
availability and pricing, are
subject to change by Parker
Hannifin Corporation and
its subsidiaries at any time
without notice.
The following statement
is required pursuant to
proposition 65, applicable
in the State of California:
‘This product may contain a
chemical known to the State of
California to cause cancer or
reproductive toxicity’.