Carrier VECTOR 1800 MT

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8-1062-11039

8.6.8 Servicing Glow Plugs

The total circuit amp draw for the glow plug circuit is

checked during a Pretrip cycle. When servicing, the

glow plug is to be fitted carefully into the cylinder head to

prevent damage to glow plug. Torque value for the glow

plug is 14 to 18 ft-lb (1.9 to 2.5 Mkg).

Checking for a Defective Glow Plug

a. The entire circuit may be tested using Component

Test Mode. (Refer to Section 5.2.2.)

b. To test individual glow plugs, disconnect all glow

plugs from each other, and place an ammeter (or clip-

on ammeter) in series with each glow plug and ener-

gize the plugs. See Table 2-5 for glow plugamperage.

8.6.9 Water Pump V--Belt

The water pump v-belt is driven by a sheave on the

engine crankshaft. Frayed, cracked or worn belts must

be replaced. This belt is a one time use only type and

require no tension adjustment.

Water Pump Belt

Figure 8 --9. Water Pump V--Belt

Main Page

Table of Contents13
Table 2-1. Model Chart22
Table 2-2. Compartment Configurations22
Table 2-3. Additional Support Manuals23
Figure 2-1. Front View24
Figure 2-2. Front View25
Figure 2-3 Evaporator Section -- Grille Removed26
Figure 2-4 Control Box27
Figure 2-5. Compressor Cylinder Head Unloaded29
Figure 2-6. Compressor Cylinder Head Loaded30
Figure 2-7. Control Module34
Table 2-4. Field Effect Transistors35
Figure 2-8. Display and Keypad36
Figure 2-9. OGF Module39
Figure 2-10. PRM Phase Reversal Module39
Table 2-5. Engine Data41
Table 2-6. Compressor Data42
Table 2-7. Component Resistance & Current Draw44
Figure 2-11. Refrigerant Circuit All Compartments Cooling46
Figure 2-12. Refrigerant Circuit -- Compartment One Cooling, Compartments 2 & 3 Heating47
Figure 2-13. Refrigerant Circuit -- Compartments One and Two Cooling, Compartment 3 Heating48
Figure 2-14. Refrigerant Circuit -- Compartments One and Three Cooling, Compartment 2 Heating49
Figure 2-15. Refrigerant Circuit -- All Compartments Heating50
Table 3-1. Unit Data69
Table 3-2. Functional Parameters74
Figure 4--1 Auto Start Sequence88
Table 4-1. Glow Time89
Table 4-2 Battery Voltages89
Figure 4--2. Continuous Run Temperature Control Operating Sequence -- Frozen Range100
Figure 4--3. Start--Stop -- Temperature Control Operating Sequence -- Perishable Range100
Figure 4--4. Start--Stop -- Temperature Control Operating Sequence -- Perishable Range101
Figure 4--5. Start--Stop -- Temperature Control Operating Sequence -- Frozen Range101
Figure 4--6. Evaporator Pressure Chart104
Figure 4--7. Refrigeration System Suction Pressures Unloading (Heat and Defrost Only)105
Figure 8--1. Priming Fuel Pump257
Figure 8--2. Mechanical Fuel Pump258
Figure 8--3. Electric Fuel Pump (Optional)258
Figure 8--4. Fuel Level Sensor Wiring259
Figure 8--5. Fuel System Diagram261
Figure 8--6. Lube Oil Flow Diagram261
Figure 8--7. Speed Control Solenoid262
Figure 8--8. Engine Crankcase Breather262
Table 8-2. Blower Wheels Identification264
Figure 8--10. Evaporator Fan Bolts265
Figure 8--11. Battery Charger265
Figure 8--19 Generator Assy269
Figure 8--20 Bolt Hole Pattern for Bell Housing and Crankshaft270
Figure 8--21. Vacuum Pump Connection273
Figure 8--23 Exploded View of Valve Plate276
Figure 8--24 Suction Valve & Positioning Springs276
Figure 8--25 Compressor Oil Pump End View277
Figure 8--26 Oil Level in Sight Glass278
Table 8-3 Compressor Torque Values278
Figure 8--27 Unloader Solenoid Valve279
Figure 8--28. Solenoid Coil Replacement279
Figure 8--29 Electronic Expansion Valve280
Figure 8--30 Electronic Expansion Valve281
Figure 8--31. Thermostatic Expansion Valve Bulb and Thermocouple282
Figure 8--32. Typical Setup for Testing High Pressure Switch283
Figure 8--33. Pressure Transducer Values283
Table 8-4 Suction and Discharge Pressure Transducer Voltages283
Table 8-5. Compressor Discharge Pressure Transducer284
Table 8-6. Compressor Suction Pressure Transducer285
Figure 8--34 Suction Modulation Valve (CSMV)286
Figure 8--35 CSMV Coil (Bi--Polar Design)287
Figure 8--36 Defrost Air Switch Test Setup289
Table 8-8. Sensor Resistance (ATT, 1RAT, 2RAT, 3RAT, 1SAT, ENCT, EVOT, CST, 1DTT, 2DTT)290
Table 8-9. Sensor Resistance (CDT)291
Table 8-10. Temperature Pressure Chart293

Carrier VECTOR 1800 MT - Page 263

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