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 5-37
HVAC Testing and Adjusting
TROUBLESHOOTING FAULTS WITH
SERVICE CODES (ACTIVE)
The active diagnostics displays information on the
control panel. This information will assist in servicing
HVAC unit.
Service Codes
* Cycle ignition power to clear error.
For all fault codes is the possible solution check the
wiring and connectors.
Entering Active Troubleshooting
1. Turn on control panel.
2. Press button for outside temperature three times in
succession to view stored error codes.
3. Press and hold button for outside temperature for
five seconds to view active diagnostics.
4. LED should display CAB. Temperature measured
by cab temperature sensor will be displayed on
LED.
NOTE: Display continuously updates information.
5. Press button for outside temperature to scroll
through available information.
The following diagnostics can be displayed:
Control panel can be operated in all functions while
displaying active diagnostics. Operator is able to change
set point temperature, vent mode and blower fan speed.
To return system to normal operation, turn unit off and on
again.
ERROR CODE PROBLEM
E0 No faults detected
E1 Cab sensor shorted
E2 Cab sensor disconnected
E3 Evaporator probe shorted
E4 Evaporator probe disconnected
E5 Outlet duct sensor shorted
E6 Outlet duct sensor disconnected
E7 Ambient sensor shorted
E8 Ambient sensor disconnected
E9 Water valve shorted
E10 Water valve disconnected
E13 Water valve failed, stuck or not
responding*
E14 Mode door stuck, actuator
disconnected, failed or not
responding*
E17 ECU module underpowerd, failed,
or disconnected or serial
communication wires disconnected
or damaged.
Definition of DISPLAY
Display Definition
CAB Cab Airflow Temperature
DUCT Air in Duct Temperature
EUAP Evaporator Core Temperature
A-C Compressor Clutch (On/Off)
HEAT Water Valve Position (0-100%t open)
PRES Pressure Cut Out Switch (On/Off)*
SUN Sunlight Value (0-100)**
FAN Blower Fan Duty Cycle (0-100)***
DOOR Mode Door Actuator Feedback Position
(0-100% of travel)
* Off position is caused by exceeding pressure limit
7 PSI.
** 100 is maximum value
*** 100 is maximum speed