Maintenance - Toyota HINO 145 Series Workshop Manual

S1-UNAE01A_4.book 39 ページ ２００４年５月２１日 金曜日 午後７時５０分
ENGINE MODEL:J05D
IDLER PULLEY
B
CRANKSHAFT
COMPRESSOR PULLEY
PULLEY
FOR AIR CONDITIONING
(3) Checking the amount of refrigerant supplied
a. Using the gauge manifold
(a) Set the following conditions.
• Open all the vehicle doors.
• Set the temperature control to the maximum cooling setting.
• Set the blower speed to the HI position.
• Set the outside air/room air selector lever to the room air position.
• Run the engine at 1500rpm.
NOTICE
•
Determination is made with the pressure on the high-pressure
side no greater than 1.86MPa (19kgf/cm
•
If the outside air temperature is high (above 40°C) and the pres-
sure on the high-pressure side drops below 1.86MPa (19kgf/cm
when you are setting the judgment criteria:
((a)) Open all the doors and set the blower speed to the LO posi-
tion.
((b)) Use an indoor workplace or work outdoors in the shade.
Carry out the procedure in steps 1 and 2 above and then deter-
mine the refrigerant quantity with the pressure no greater than
1.86MPa (19kgf/cm
(b) Check the gauge manifold reading.
• If it is normal
((a)) Pressure on low-pressure side 0.15—0.25MPa (1.5—2.5 kgf/
cm
((b)) Pressure on high-pressure side 1.37—1.57MPa (14—16 kgf/
cm
NOTICE
• The gauge manifold reading may vary somewhat depending on
conditions.
• Too much refrigerant can lead to problems such as faulty cooling
or overheating.
SAPH11ABC0200077

MAINTENANCE

ADJUSTING
BOLT b
1. ADJUSTING THE V-BELT TENSION
LOCK NUT a
! CAUTION
After a new belt has been installed it may loosen during its initial
break-in period. Run the engine for 3—5 minutes, therefore, and re-
adjust the belt tension.
(1) Loosen the idler pulley lock nut and adjust the V-belt tension (measur-
ing point: B) until it is within the prescribed range, by turning the
adjusting bolt with the special tool.
SAPH11ABC0200078
CAB
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