Mitsubishi Montero (1998+). Manual - part 27

         Schrader valve is similar in construction and operation to a

tire valve. When a test gauge hose with built-in valve core depressor

is attached, Schrader stem is pushed inward to the open position and

allows system pressure to reach gauge.

         If test hose does not have a built-in core depressor, an

adapter must be used. Never attach hose or adapter to Schrader valve

unless it is first connected to manifold gauge set.

         Refrigerant R-12 Schrader-type valve cores have TV5 thread

size. Refrigerant R-134a Schrader-type valve cores use M6 (Metric)

threads. See Fig. 1.

         SERVICE VALVE LOCATIONS

SERVICE VALVE LOCATIONS TABLE

Vehicle                           High                   Low

Diamante  ......................  (1)  ................  (2)

Eclipse  .......................  (1)  ................  (2)

Galant  ........................  (1)  ................  (2)

Mirage  ........................  (1)  ................  (2)

Montero  .......................  (3)  ................  (3)

Montero Sport  .................  (1)  ................  (2)

3000GT  ........................  (4)  ................  (2)

(1) - On high pressure line, between accumulator/receiver-

      drier and evaporator.

(2) - On low pressure line, between evaporator and

      compressor.

(3) - On top of accumulator/receiver-drier.

(4) - On high pressure line, near receiver-drier.

         REFRIGERANT RECOVERY/RECYCLING

         Refrigerant recovery/recycling equipment is used to remove

refrigerant from vehicle’s A/C system without polluting atmosphere. To

remove and recycle refrigerant, connect the recovery/recycling

equipment and following the equipment manufacturer’s instructions.

         Removed refrigerant is filtered, dried and stored in a tank

within the recovery/recycling equipment until it is ready to be pumped

back into vehicle A/C system. With refrigerant stored in the

recovery/recycling equipment, A/C system can be opened without

polluting atmosphere.

NOTE:    Separate sets of hoses, gauges and refrigerant

         recovery/recycling equipment MUST be used for R-12 and

         R-134a based systems. DO NOT mix R-12 and R-134a

         refrigerants, as their refrigerant oils and desiccants are

         not compatible. It is NOT possible to clean equipment

         thoroughly enough to prevent cross-contamination of A/C

         systems. On systems with R-134a refrigerant, use

         Polyalkylene Glycol (PAG) wax-free refrigerant oil.

A/C SYSTEM SPECIFICATIONS 

1998 Mitsubishi Montero

         1998 AIR CONDITIONING & HEAT

         Mitsubishi - A/C System Specifications

         Montero

         A/C SYSTEM SPECIFICATIONS

A/C SYSTEM SPECIFICATIONS TABLE

Application                                    Specification

Compressor Type  ...............  Nippondenso 10PA15 10-Cyl.

Compressor Belt Deflection (1)

  New  ..........................  13/64-15/64" (5.1-6.0 mm)

  Used  .........................  17/64-19/64" (6.6-7.5 mm)

Compressor Oil Capacity  .....................  ( 2) 2.7 ozs.

Refrigerant (R-134a) Capacity  .................  21-23 ozs.

System Operating Pressures (4)

  High Side  ...............  149-213 psi (10.5-15.0 kg/cm



)

  Low Side  ....................  14-33 psi (1.0-2.3 kg/cm



)

(1) - With 22 lbs. (100 N.m) force applied midway on longest

      span of belt.

(2) - Use ND 8-OIL refrigerant oil.

(3) - Use SUN PAG 56 refrigerant oil.

(4) - With ambient temperature at about 80



F (27



C).

AIR BAG RESTRAINT SYSTEM 

1998 Mitsubishi Montero

         1998 AIR BAG RESTRAINT SYSTEMS

         Mitsubishi

         Montero

         DESCRIPTION & OPERATION

WARNING: To avoid injury from accidental air bag deployment, read and

         carefully follow all WARNINGS and  SERVICE PRECAUTIONS.

         Supplemental Restraint System (SRS) consists of an SRS

warning light, driver-side and passenger-side air bag module,

clockspring, right and left front impact sensors, and SRS Air Bag

Control Unit (ECU). The SRS-ECU contains an analog and a safing impact

sensor. See Fig. 1.

         Air bags are designed to deploy in a frontal or near frontal

impact of moderate to severe force. For air bags to deploy, ignition

must be on and safing impact sensor and at least one front impact

sensor must activate simultaneously.

Fig. 1:  Locating SRS Components

Courtesy of Mitsubishi Motor Sales of America.

         SRS WARNING LIGHT

         When ignition switch is turned to ON or START position, SRS

warning light on instrument panel should come on for about 7 seconds

and then go off. This indicates SRS-ECU has determined SRS is

functioning properly. If SRS warning light flashes, stays on all the

time, or does not come on, a fault exists in SRS. See

DIAGNOSIS & TESTING.

         FRONT IMPACT SENSORS

         Sensors are inertia switches that verify direction and

severity of impact. If impact is great enough, switch contacts close,

completing an electrical circuit. Front impact sensors are located

under front fenders. See Fig. 1.

         AIR BAG MODULE(S)

         An inflator assembly in the air bag module produces nitrogen

gas to fill air bag. See Fig. 1. When a small amount of current from

SRS-ECU is applied, ignitor starts a thermal reaction, which spreads

to a pellet-filled canister that produces nitrogen gas. Gas pressure

builds and discharges from inflator through a diffuser and screen

assembly, forcing trim cover to burst along its seams until air bag is

fully inflated. When air bag is fully inflated, gas escapes through

vents on sides of air bag.

         SRS AIR BAG CONTROL UNIT (ECU)

         SRS-ECU (with integral safing and analog impact sensor) is

located behind front floor console assembly. See  Fig. 1. If a system

fault occurs, SRS-ECU memory stores a diagnostic trouble code (DTC).

         DATA LINK CONNECTOR (DLC)

         DLC is located under left side of dash. See  Fig. 1. DLC is

used to access SRS self-diagnostics through Mitsubishi Multi-Use

Tester II (MUT-II) (MB991502).

         CLOCKSPRING

         Clockspring connects driver-side air bag module to steering

column wiring, forming SRS circuit. See Fig. 1. Clockspring is a flat,

ribbon-like cable that winds and unwinds when steering wheel is

turned. Because of clockspring’s constant movement, it is the most

fragile part in the system.

         SYSTEM OPERATION CHECK

WARNING: After servicing, always turn ignition on from passenger-side

         of vehicle in case of accidental air bag deployment.

         Turn ignition switch to ON position. SRS warning light on

instrument panel should come on for about 7 seconds and then turn off.

This indicates SRS is functioning properly. If SRS warning light does

not come on, stays on, or comes on while driving, SRS is

malfunctioning and needs repair. See DIAGNOSIS & TESTING.

         SERVICE PRECAUTIONS

         Observe the following precautions when working with SRS:

      *  Disable SRS before servicing any SRS or steering column