2001 NISSAN ALMERA N16 Electronic Repair Manual

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Page 2065 of 2493

NISSAN ALMERA N16 2001 Electronic Repair Manual RHA143E
+Install the pulley assembly using the installer and a hand
press, and then install the snap ring using snap ring pliers.
RHA127F
+Install the clutch disc on the drive shaft, together with the

Page 2066 of 2493

NISSAN ALMERA N16 2001 Electronic Repair Manual Heater & Cooling Unit (Heater Core)
REMOVALNJHA0193
RHA807H
1. Drain the cooling system. Refer to LC-17 (QG), LC-43 (YD),
ªChanging Engine Coolantº.
2. Discharge the A/C system. Refer to HA-84.
3. D

Page 2067 of 2493

NISSAN ALMERA N16 2001 Electronic Repair Manual RHA674H
5. Remove the five screws fixed heater & cooling unit lower
cover.
6. Slide the A/C evaporator to rear side.
7. Slide the heater & cooling unit lower cover to rear side and
then remove it.
8.

Page 2068 of 2493

NISSAN ALMERA N16 2001 Electronic Repair Manual 1. Remove the instrument panel assembly. Refer to BT-25,
ªInstrument Panel Assemblyº.
2. Disconnect the blower motor and resistor connector.
3. Remove blower unit.
INSTALLATIONNJHA0196Install in the

Page 2069 of 2493

NISSAN ALMERA N16 2001 Electronic Repair Manual Refrigerant Lines
REMOVAL AND INSTALLATION=NJHA0167+Refer to page HA-3 reading ªPrecautions for Refrigerant Connectionº.
NHA523
SERVICE PROCEDURE
Refrigerant Lines
HA-97

Page 2070 of 2493

NISSAN ALMERA N16 2001 Electronic Repair Manual NHA524
+Refer to page HA-3 regarding ªPrecautions for Refrigerant Connectionº.
SERVICE PROCEDURE
Refrigerant Lines (Contd)
HA-98

Page 2071 of 2493

NISSAN ALMERA N16 2001 Electronic Repair Manual CHECKING REFRIGERANT LEAKS=NJHA0168Preliminary CheckNJHA0168S01Perform a visual inspection of all refrigeration parts, fittings, hoses,
and components for signs of A/C lubricant leakage, damage and
co

Page 2072 of 2493

NISSAN ALMERA N16 2001 Electronic Repair Manual SHA708EA
3. Move probe along component approximately 25 to 50 mm (1
to 2 in)/sec.
Checking ProcedureNJHA0168S03To prevent inaccurate or false readings, make sure there is no
refrigerant vapor, shop ch

SHA708EA
3. Move probe along component approximately 25 to 50 mm (1
to 2 in)/sec.
Checking ProcedureNJHA0168S03To prevent inaccurate or false readings, make sure there is no
refrigerant vapor, shop chemicals, or cigarette smoke in the
vicinity of the vehicle. Perform the leak test in calm area (low
air/wind movement) so that the leaking refrigerant is not dis-
persed.
1. Turn engine off.
2. Connect a suitable A/C manifold gauge set to the A/C service
ports.
3. Check if the A/C refrigerant pressure is at least 345.2 kPa (3.45
bar, 3.52 kg/cm
2, 50.1 psi) above 16ÉC (61ÉF). If less than
specification, recover/evacuate and recharge the system with
the specified amount of refrigerant.
NOTE:
At temperatures below 16ÉC (61ÉF), leaks may not be detected
since the system may not reach 345.2 kPa (3.45 bar, 3.52 kg/cm
2,
50.1 psi).
4. Conduct the leak test from the high side (compressor dis-
chargeato evaporator inletg) to the low side (evaporator drain
hosehto shaft sealk). Refer to HA-97. Perform a leak check
for the following areas carefully. Clean the component to be
checked and move the leak detector probe completely around
the connection/component.
+Compressor
Check the fitting of high and low pressure hoses, relief valve
and shaft seal.
+Liquid tank
Check the pressure switch, refrigerant pressure sensor, tube
fitting, weld seams and the fusible plug mount.
+Service valves
Check all around the service valves. Ensure service valve caps
are secured on the service valves (to prevent leaks).
NOTE:
After removing A/C manifold gauge set from service valves, wipe
any residue from valves to prevent any false readings by leak
detector.
+Cooling unit (Evaporator)
With engine OFF, turn blower fan on ªHighº for at least 15
seconds to dissipate any refrigerant trace in the cooling unit.
Wait a minimum of 10 minutes accumulation time (refer to the
manufacturer's recommended procedure for actual wait time)
before inserting the leak detector probe into the drain hose.
Keep the probe inserted for at least ten seconds. Use caution
not to contaminate the ptobe tip with water or dirt that may be
in the drain hose.
SERVICE PROCEDURE
Refrigerant Lines (Cont'd)
HA-100

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