Haldex N4250 Instrucciones De Instalación

CONNECTING THE HEATER
1. Determine the vehicle's electrical system voltage and make certain that
the Pure Air Plus Air Dryer installed is of the same voltage.
2. Connect the white lead from the dryer to a good ground on the vehicle chassis.
3. The black lead should be attached to a wire which is hot when the ignition is "on."
A ten (10) amp fuse is recommended in this wire for a 12 volt dryer and a five (5) amp
fuse for a 24 volt dryer, in addition to the vehicle circuit breaker for that wire. Also the
"hot" wire from the vehicle should be a minimum of 14 gauge.
OPERATIONAL CHECKS
Once the unit is installed, start the engine, build up pressure to 100 psi, and shut off
the engine. Check for air leaks at the inlet and outlet of the dryer. Correct any
leakage problem. Restart the engine and build up pressure to compressor cutout
pressure. At cutout pressure the dryer purge valve opens and immediately expels a
large volume of air, followed by a slow flow of air lasting approximately thirty seconds.
Check for leakage at locations shown below to assure that the Pure Air Plus Air Dryer
does not cycle excessively. Monitoring wet tank pressure with an accurate air pressure
gauge will help determine if a significant air leak is present.
A. Compressor Unloader Mechanism.
B. Governor and associated fittings and air lines.
C. Drain Cock and Safety Valve in first (supply or wet tank) reservoir.
D. All air connections and air lines leading to and from the first (supply
or wet tank) reservoir.
DESICCANT CANISTER REMOVAL
(Note: Do not remove the Desiccant Canister until the wheels have been blocked
and the system has been drained of all pressure.) To check the condition of the
coalescing filter, carefully loosen the desiccant canister and spin off by hand. To
reinstall the canister, spin on by hand to contact, then turn by hand 1/2 turn past
contact. (10 - 20 lb. ft., 14 - 27 Nm.)
APPLICATION GUIDELINES
The Pure Air Plus Air Dryer is designed to remove sufficient water, dirt, and oil during
normal highway applications. Unusual or severe duty applications such as trash
haulers or yard jockeys may have excessive compressor load cycles or insufficient
unload cycles. Either case will reduce the performance of the dryer.
For optimum performance the Pure Air Plus Air Dryer must have a minimum of thirty
seconds purge time between compressor load cycles, and the compressor load cycles
should average no more than eighty seconds.
Brake Systems Division
North American Sales & Svc. Org.
10707 N.W. Airworld Drive
Kansas City, Missouri 64153-1215
Phone: (816) 891-2470
Fax: (816) 880-9766
Rev. 1/02 25M ART L31103
Brake Systems Division
Customer Service Department
10930 N. Pomona Avenue
Kansas City, Missouri 64153-1297
Phone: (800) 643-2374
Fax: (800) 533-1941
INSTALLATION INSTRUCTIONS
PURE AIR PLUS AIR DRYER
12 VOLT (N4250/DA33100)
24 VOLT (N4250A/DA33110)
L31103
Rev. 1/02