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Idiomas disponibles
Idiomas disponibles
HEAD ROTATION
The head assembly of any EL1300/EL1600 Compressor can
be rotated with respect to the block. A head rotation may be
necessary to allow ease of mounting intake manifold and
governor. Rotating the head does not void the warranty .
Head and block rotation is determined by viewing the
compressor from the drive end.
Head
Head
Right
Left
Long
Head
Bolt
1. Remove the six 3/8 – 16 UNC head bolts.
2. Remove the head by tapping it lightly with a hammer on
the boss below the water ports.
3. Remove the head gasket and replace with the gasket
supplied.
4. Rotate the head 180° and insert the head bolts insuring
the one longer bolt is inserted through the unloader
coverplate that is bolted to the head.
5. Torque the head bolts to 18 – 22 ft. lbs. in the order as
shown in the sketch above.
6. Retorque the head bolts to 27 – 33 ft. lbs. in the same
order as shown in the sketch above.
REMOVAL
WARNING With vehicle on level surface, always block
!
the vehicle wheels before working on any part of an air
brake system.
WARNING Shut down vehicle engine.
!
1. Carefully and completely drain the vehicle' s air system.
Leave all reservoir drain fittings open during changeover .
2. Drain the engine coolant system below the level of the
compressor block.
CAUTION Remove discharge line carefully. The line is
!
HOT while the unit is running and may be for some time
after shutdown. Air may still be in the vehicle system due
to automatic drain and one-way check valves.
3. Disconnect and cap all other lines.
4. Remove drive belt(s) on pulley-driven units.
5. Unbolt fuel pump on Cummins and power steering pump
on some Mack models.
6. Remove mounting bolts on flange-mounted units.
Remove bottom bolt(s) first.
CAUTION An air compressor weighs between 40 and
!
50 pounds and is often oil covered. Be sure of your grip
when removing the compressor from the engine mounting.
The following items must be checked to ensure proper
compressor function.
Coolant Lines
A. Clean or replace any plugged, corroded or damaged
coolant lines or fittings. NOTE: It is common on bus
applications for the engine block fittings to be plugged
with corrosion.
B. Water lines should be 1/2 inch ID Minimum – this
along with eliminating any sharp bends is adequate to
Unloader
prevent excessive line restriction and to ensure minimum
Cover
required flow throughout the life of the compressor .
Bolts
C. Direct water flow across the head – water inlet should
be into the cylinder head or cylinder block at one end and
taken out of the CYLINDER HEAD at the opposite end.
By no means should the water outlet be from the same
end as the water supply, or should the water outlet be
from the cylinder block.
Coolant Out
or
Coolant In
Oil Feed Line (On models which have an
external feed – see compressor illustration on front)
A. Check feed line for contamination or kinks. The feed line
can be purged of contamination and checked for flow by
running the engine for a few seconds before connecting
the line to the compressor. The oil line should come from
a point after the oil filter and must be at least 10 psi oil
pressure at engine idle. The line should be 1/8 inch ID
Minimum to ensure an adequate supply of oil. Some
compressors have two oil inlet ports in the rear end cap.
The one to which the oil supply line is not connected
must be plugged with a metal plug.
Oil Drain Line (On models which have an
external drain – see compressor illustration on front)
A. Check for contamination or restrictions. The drain line
must be 1/2 inch ID Minimum from the compressor to the
engine crankcase. The line should have no bends, less
than a two inch radius, be free of traps, have a continuous
Coolant
Out
Coolant In
or
Coolant Out
PREFERRED
OPTION
R
R
E
Coolant In
E
C
C
Coolant
or
O
O
N
Coolant Out
N
Out
M
M
O
M
O
M
E
E
T
T
N
N
D
D
E
E
D
D
downward flow and enter the engine above the engine oil
level. The compressor drain should not be connected to
any other oil drains which could restrict the flow of oil
out of the compressor. Check the mating oil drain hole
in the engine flange for contamination or restrictions on
internally drained models.
Compressor Mounting Surface
A. Clean the mounting surface. Use the gasket provided
with the replacement compressor. Use gasket sealant
sparingly. Care should be taken so no gasket sealant
plugs the oil entry or oil drain. NOTE: Excessive gasket
sealant which plugs or restricts either the oil feed or drain
voids any warranty or progressive damage claim.
Compressor Mounting
(Flange Mounted Compressors)
A. Inspect drive hub and coupling for wear or damage.
Replace if necessary. Install compressor and check for
proper alignment before bolts are drawn tight.
Compressor Mounting
Coolant In
(Base Mounted Compressors)
or
Coolant In
A. Inspect pulley for wear or damage. Replace if necessary .
Install compressor and check for proper alignment.
CAUTION The maximum drive belt radial force is 240 lbs.
!
Air Discharge Line
Coolant In
or
Coolant In
A. See front side for Haldex recommendations. The line
must be .547 inch ID Minimum, show no bends smaller
than a two inch radius, be free of traps and slope
downward toward the air reservoir or air dryer .
and Forming Carbon
Haldex Brake Systems
North American Sales & Svc. Org.
10707 NW Airworld Drive
Kansas City, MO 64153-1215
(816) 891-2470
To
Reservoir
Oil Collecting
Haldex Limited
525 Southgate Drive, Unit 1
Guelph, Ontario
Canada N1G 3W6
(519) 826-7723
Rev. 5/02 1M ART L31106W
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