14
TK 56433-5-MM-EN
Belt Tension
Use of Frequency Gauge P/N 204-1903 to measure
frequency (Hz) is recommended.
Model 30/50
New Belt
Field Reset
Electric Motor/Compressor Drive
Belt
Units fitted with original SLX clutch (up until build
date 13 August 2013)
73-76
67-72
Units fitted with SLX clutch retrofit (P/N 78-1884)
Use service tool P/N 204-2436 to set belt tension.
Distance of 139.0 mm as set by service tool equates
to 78-81 Hz for a new belt, and 69-73 Hz for a field
reset belt.
Units fitted with SLXe/SLXi clutch (P/N 77-3189)
Use service tool P/N 204-2436 to set belt tension.
Distance of 139.0 mm as set by service tool equates
to 95 Hz for a new belt.
Fan Drive Belt
SLX/SLXe/SLXi
106-118
95-106
Water Pump Belt
Tension Number on TK Gauge 204–427 Field Reset: 35-40
Use of Frequency Gauge P/N 204-1903 to measure
frequency (Hz) is recommended.
Model 30
New Belt
Field Reset
Engine/Cross Shaft (Jackshaft)
Belt
Clutch Tensioner (P/N 77-3189)
Use service tool P/N 204-2436 to set belt tension.
Distance of 139.0 mm as set by service tool equates
to 95 Hz for a new belt.
Fan Drive Belt
TK Belt Tension Tool 204-3185
106-118 Hz
95-106 Hz
Water Pump Belt
Tension Number on TK Gauge 204-0427 Field Reset: 35-40
Refrigeration System
Compressor
Thermo King X430P®
Refrigerant Charge - Type
12.5 lb (5.7 kg) – R452A
Compressor Oil Charge
4.3 qt (4.1 liters/litres)*
Compressor Oil Type
Polyol Ester type P/N 203-513
Heat/Defrost Method
Hot gas
High Pressure Cutout
470 +/-7 psi (3241 +/-48 kPa)
Automatic reset @ 375 ± 38 psi (2586 ±
262 kPa)
* When the compressor is removed from the unit, oil level should be noted or the oil removed from the compressor should be measured so that
the same amount of oil can be added before placing the replacement compressor in the unit.
Electrical Control System
Voltage
12.5 Vdc (nominal)
Battery
One, Group C31, 12 volt battery (950 CCA recommended for operation below -15°F or -26°C)
Fuses
See Fuses in “Electrical Maintenance”
Battery Charging (Alternator)
37 ampere brush type
Voltage Regulator Setting
(Alternator)
13.8 to 14.2 volts @ 25°C