Suzuki Wagon R Plus RB310, Service Manual

Page: 62 / 846

AIR CONDITIONING (OPTIONAL) 1B-5
Compressor Drive Belt (M13 Engine Model)
Inspection
• Check compressor drive belt (6) for wear and cracks, and
replace as required.
• Check compressor drive belt (6) tension by measuring how
much it deflects when pushed at intermediate point between
compressor pulley (1) and tension pulley (2) with about 100
N (10 kg, 22 lbs) force after crankshaft pulley 1 rotating. If
belt tension is without specification, adjust belt tension refer-
ring to below procedures.
Compressor drive belt tension
“a”: 3 – 5 mm (0.12 – 0.20 in.)
New compressor drive belt tension
“a”: 2 – 4 mm (0.08 – 0.16 in.)
Adjustment
1) Loosen tension pulley nut (3).
2) Adjust belt tension by tighten or loosen tension pulley adjust-
ing bolt (4).
3) Tighten tension pulley nut (3).
4) Turn the crank pulley (5) 1 revolution, then check belt ten-
sion.
Replacement
1) Loosen tension pulley nut (3).
2) Loosen belt tension by loosen tension pulley adjusting bolt
(4).
3) Remove compressor drive belt (6).
E21-30 LT
GRN/
RED
A/C switch
input Ground to
engine (Fig B) 0 – 1 V A/C switch ON with ignition switch
ON
10 – 14 V A/C switch OFF with ignition switch
ON
E22-16 YEL/
GRN Engine coolant
temperature
sensor input Ground to
engine (Fig B) 0.71 – 0.76 V
(290 – 320
Ω
)
Engine coolant temperature at
Approx. 80 ºC (176 ºF) with ignition
ON
0.35 – 0.37 V
(136 – 144
Ω
)
Engine coolant temperature at
Approx. 110 ºC (230 ºF) with ignition
ON
E22-28 BRN/
WHT
Sensor ground Ground to
body (Fig A)
–0.3 – 0.3 V Ignition switch ON
E21-13 PNK/
BLU
Blower fan
speed input Ground to
engine (Fig B) 0 – 2 V Blower switch 2nd, 3rd or 4th position
with ignition switch ON
3 – 5 V • Blower switch 1st position with igni-
tion switch ON
• A/C switch ON and blower switch
off with ignition ON
10 – 14 V Blower switch OFF position with igni-
tion switch ON
Termi-
nal
Wire Circuit Measurement
ground
Normal value Condition