1987-Montero · Vol2 a · страница 270 из 284 · Открыть оригинал PDF ↗
PEAFORMANCE TEST
TESI
NOTE
Air temperature in test room must be 21°C (70°F) minimum for this
test.
(1) Connect a tachometer and manifold gauge set.
(2) Set air conditioner controls to Max air conditioner, tempera-
ture lever on full cool, and blower on high.
(3) Turn engine on 1000 rpm with air conditioner clutch engaged.
(4) Engine should be warmed up with doors, windows, and hood
open.
(5) Insert a thermometer in the left center air conditioner outlet
and operate the engine for 5 minutes.
(6) Note the discharge air temperature.
NOTE
If the clutch cycles, take the reading before the clutch disen-
gages.
Performance Temperature Chart
| Garage ambient temperature | 21 “C (70 “F) | 26.5 “C (80 “F) | 32 “C (90 “F) | 37.5 “C (100 “F) | 40.6 “C (I 05 “F) |
|---|---|---|---|---|---|
| Discharge air temperature | 1.7-4.4 “C (35-40 “F) | 1.7-5.0 “C (35-41 “F) | 1.7-5.6 “C (35-42 “F) | 1.7-6.1 “C (35-43 “F) | 1.7-6.7 “C (35-44 “F) |
| Compressor discharge pressure | 928- 1,322 kPa (132-188 psi) | 1.069-1.547 kPa (152-220 psi) | 1,209-1,772 kPa (172-252 psi) | 1,336-1,969 kPa (190-280 psi) | 1,406-2,109 kPa (200-300 psi) |
| Evaporator suction pressure | 127-148 kPa (18-21 psi) | 131-162 kPa (18.6-23 psi) | 134-176 kPa (19-25 psi) | 135- 188 kPa (19.2-26.8 psi) | 136-194 kPa (19.4-27.6 psi) |
Таблица в оригинале
REFRIGERANT LEAK REPAIR PROCEDURE N24FnAB LOST CHARGE
If the system has lost all charge due to a leak:
(1) Evacuate the system. (See the procedure).
(2) Charge the system with approximately one pound of refriger-
ant.
(3) Check for leaks.
(4) Discharge the system.
(5) Repair leaks.
(6) Replace receiver drier.
Caution
Replacement filter-drier units must be sealed while in stor-
age. The drier used in these units will saturate water quickly
upon exposure to the atmosphere. When installing a drier,
have all tools and supplies ready for quick reassembly to
avoid keeping the system open any longer than necessary.
(7) Evacuate and charge the system.
LOW CHARGE
If the system has not lost all of its refrigerant charge; locate and
repair all leaks. If it is necessary to increase the system pressure
to find the leak (because of an especially low charge) add refrig-
erant. If it is possible to repair the leak without discharging the
refrigerant system, use the procedure for correcting low refriger-
ant level.
Оригинальная страница руководства
