Service Manual
Table Of Contents
- 627333-A
- 01 Introduction
- Safety
- Follow Safety Instructions
- Prepare for Emergencies
- Safety Alert Symbol
- Signal Words
- Informational Messages
- Important Safety Information
- General Hazard Information
- Emergency Exit From Cab
- Operating The Vehicle Safely
- Prevent Vehicle Runaway
- Use Safety Lights and Devices
- Operating On Slopes
- Traveling On Public Roads
- Stopping And Parking The Vehicle
- System Boom Safety
- Avoid Eye Contact With Radar
- Exhaust Fumes
- Overhead Electrical Power Lines
- Noise
- Handle Fuel Safely - Avoid Fires
- Stay Clear Of Rotating Drive Lines And Moving Parts
- Towing Other Vehicles / Trailers / Equipment
- Modifications
- Maintenance And Service Safety
- Practice Safe Maintenance
- Chemical Safety
- Wear Protective Clothing
- Work In A Clean Area
- Understand Correct Service
- Use Proper Tools
- Support Machine Properly
- Proper Lifting Equipment
- High-Pressure Fluids
- Hydraulic Hoses
- Avoid Heating Near Pressurized Fluid Lines
- Service Cooling System Safely
- Remove Paint Before Welding Or Heating
- Batteries
- Tires And Wheels
- Dispose Of Waste Properly
- Mobile Radio Installations
- Maintenance In The Articulation Joint (Hinge) Area
- Safety Tread and Grip Material
- Safety And Service Decal Locations Chassis
- Safety And Service Decal Locations Cabine
- General
- Dimensions
- Torque Specifications
- Jack Up The Machine
- Tooling list
- Index
- Safety
- 02 Engine
- 03 Powertrain
- Transmission Service Manual
- Transmission and Solenoids
- Testing and Adjusting
- Transmission Troubleshooting
- Disassembly and Assembly
- Drive line
- Index
- TA19 KENR6054-00
- TA19 KENR6678 (Modification)
- 04 Chassis
- MM9L(Modification)
- 05 Cab
- Cab
- Cab Seat
- HVAC
- General Information
- Theory of operation
- Basics of Refrigeration
- Air Conditioning Process
- HVAC System
- Automatic Temperature Control
- Refrigerant Relief Valve
- Temperature Sensors
- Evaporator Coil
- Heater Core (Cab)
- Actuator Motor (Water Valve)
- AirFlow
- Motor (Air Conditioning Blower)
- Speed Control
- Actuator Motor (Damper)
- Glossary of Terms
- HVAC Specification
- HVAC Testing and Adjusting
- Troubleshooting Machine Preparation
- General Troubleshooting Information
- Visual Inspection
- Troubleshooting Faults With Service Codes (Active)
- Troubleshooting Air Conditioner Control
- Problem List
- Probable Causes
- No Display
- Probable Solution
- No Blower Fan
- Probable solution
- No Heat
- Probable Solution
- No Cooling
- Probable Solution
- System is putting out cool air when heat needed
- Probable Solutions
- System is putting out hot air when cooling needed.
- Probable Solution
- No Fan or Erratic Fan
- Probable Solutions
- Nothing Works
- Probable Solution
- Electric Actuator for Mode of Airflow is not Moving or Working Properly
- Probable Solutions
- Refrigerant Compressor Oil - Check
- Refrigerant System - Charge
- Complete Charge of System from a Refrigerant Tank with a Scale
- Adding Additional Refrigerant to an Air Conditioning System with Low Charge
- Manifold Gauge Set (Refrigerant) - Remove
- Control Panel - Test
- Index
- 06 Electrical
- 07 Hydraulic
- 08 Air System
627333-A 5-45
HVAC Testing and Adjusting
Relationship Between Temperature and Pressure
(R-134a Refrigerant)
Temperature Degrees C
(degrees F)
Pressure kPa (PSI)
−18 C (0.0 F) 44 kPa (6.4 PSI)
−17 C (2.0 F) 51 kPa (7.4 PSI)
−16 C (4.0 F) 59 kPa (8.5 PSI)
−14 C (6.0 F) 66 kPa (9.6 PSI)
−13 C (8.0 F) 74 kPa (10.7 PSI)
−12 C (10.0 F) 82 kPa (11.9 PSI)
−11 C (12.0 F) 90 kPa (13.1 PSI)
−10 C (14.0 F) 99 kPa (14.3 PSI)
−9 C (16.0 F) 108 kPa (15.6 PSI)
−8 C (18.0 F) 117 kPa (17.0 PSI)
−7 C (20.0 F) 127 kPa (18.4 PSI)
−6 C (21.0 F) 132 kPa (19.1 PSI)
−6 C (22.0 F) 137 kPa (19.8 PSI)
−5 C (23.0 F) 141 kPa (20.5 PSI)
−4 C (24.0 F) 147 kPa (21.3 PSI)
−4 C (25.0 F) 152 kPa (22.0 PSI)
−3 C (26.0 F) 157 kPa (22.8 PSI)
−3 C (27.0 F) 163 kPa (23.6 PSI)
−2 C (28.0 F) 168 kPa (24.4 PSI)
−2 C (29.0 F) 174 kPa (25.2 PSI)
−1 C (30.0 F) 179 kPa (26.0 PSI)
−1 C (31.0 F) 185 kPa (26.8 PSI)
0 C (32.0 F) 191 kPa (27.7 PSI)
1 C (33.0 F) 197 kPa (28.5 PSI)
1 C (34.0 F) 203 kPa (29.4 PSI)
2 C (35.0 F) 209 kPa (30.3 PSI)
2 C (36.0 F) 215 kPa (31.2 PSI)
3 C (37.0 F) 221 kPa (32.1 PSI)
3 C (38.0 F) 228 kPa (33.0 PSI)
4 C (39.0 F) 234 kPa (34.0 PSI)
4 C (40.0 F) 241 kPa (34.9 PSI)
5 C (41.0 F) 248 kPa (35.9 PSI)
6 C (42.0 F) 254 kPa (36.9 PSI)
Relationship Between Temperature and Pressure
(R-134a Refrigerant)
Temperature Degrees C
(degrees F)
Pressure kPa (PSI)
6 C (43.0 F) 261 kPa (37.9 PSI)
7 C (44.0 F) 263 kPa (38.9 PSI)
7 C (45.0 F) 275 kPa (39.9 PSI)
8 C (46.0 F) 283 kPa (41.0 PSI)
8 C (47.0 F) 290 kPa (42.0 PSI)
9 C (48.0 F) 297 kPa (43.1 PSI)
9 C (49.0 F) 305 kPa (44.2 PSI)
10 C (50.0 F) 312 kPa (45.3 PSI)
11 C (51.0 F) 320 kPa (46.4 PSI)
11 C (52.0 F) 328 kPa (47.5 PSI)
12 C (53.0 F) 336 kPa (48.7 PSI)
12 C (54.0 F) 344 kPa (49.9 PSI)
13 C (55.0 F) 352 kPa (51.0 PSI)
13 C (56.0 F) 360 kPa (52.2 PSI)
14 C (57.0 F) 369 kPa (53.5 PSI)
14 C (58.0 F) 377 kPa (54.7 PSI)
15 C (59.0 F) 385 kPa (55.9 PSI)
16 C (60.0 F) 394 kPa (57.2 PSI)
16 C (61.0 F) 403 kPa (58.2 PSI)
17 C (62.0 F) 412 kPa (59.8 PSI)
17 C (63.0 F) 421 kPa (61.1 PSI)
18 C (64.0 F) 430 kPa (62.4 PSI)
18 C (65.0 F) 440 kPa (63.8 PSI)
19 C (66.0 F) 450 kPa (65.2 PSI)
19 C (67.0 F) 459 kPa (66.8 PSI)
20 C (68.0 F) 469 kPa (68.0 PSI)
21 C (69.0 F) 478 kPa (69.4 PSI)
21 C (70.0 F) 488 kPa (70.8 PSI)
22 C (71.0 F) 498 kPa (72.3 PSI)
22 C (72.0 F) 509 kPa (73.8 PSI)
23 C (73.0 F) 519 kPa (75.3 PSI)
23 C (74.0 F) 530 kPa (76.8 PSI)
24 C (75.0 F) 540 kPa (78.3 PSI)
24 C (76.0 F) 551 kPa (79.9 PSI)
25 C (77.0 F) 562 kPa (81.5 PSI)
26 C (78.0 F) 573 kPa (83.1 PSI)
26 C (79.0 F) 584 kPa (84.7 PSI)