MacDon 9352 Operator's Manual Page 114
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- TROUBLESHOOTING
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Rated. / 5. Based on customer reviews
Form # 46584 Issue 11/06 Web Rev_01
112
MAINTENANCE/SERVICE
Cab Air System
COMPRESSOR PROTECTION
The compressor is protected from excessively low
suction and high discharge pressures by two
switches:
• Low suction pressure switch is located at the
outlet of the evaporator (under seat in cab). It
will close when the pressure drops below 4±2
psi and re-open when pressure rises above
20±5 psi.
• High discharge pressure switch is located on
the receiver drier (rear of tractor, behind right
side panel). It will close if pressure exceeds
325±10 psi and re-open when pressure drops
below 250±30 psi.
To prevent damage to the compressor, if the air
conditioning system is shut down by either switch,
locate the source of the problem and correct it
before operating the system.
REFRIGERANT OIL
Whenever the machine is first started after storage
for more than one week: Turn blower switch to
"OFF" and turn A/C temperature control switch to
maximum cooling. Start engine and operate at low
idle. Click blower switch from "OFF" to "LOW" for
one second, then back to "OFF" for 5 to 10
seconds. Repeat this cycle ten times to distribute
the oil throughout the system.
LOW SIDE
PRESSURE
HIGH SIDE
PRESSURE
POSSIBLE
CAUSE
VERY LOW
VERY LOW
Lack of R134a
LOW
LOW
Loss of R134a
Restriction between condenser and drier
LOW
LOW OR
NORMAL
Restriction between drier and expansion valve
Expansion valve plugged
Expansion valve stuck closed
Inoperative blower motor
Plugged filter or evaporator core
Moisture in system
Defective temperature control switch
Restriction at expansion valve
Restriction in evaporator
Restriction between evaporator and compressor suction
HIGH
LOW
Compressor belt slipping
Magnetic clutch slipping
Compressor internal failure
HIGH
HIGH
Condenser malfunction
Condenser coil plugged
Expansion valve stuck open
Restriction between compressor and condenser
Restriction inside condenser
Overcharge of refrigerant
Air in system
HIGH
NORMAL
Expansion valve stuck open
NORMAL
HIGH
Restriction between compressor and condenser
Restriction inside condenser
Overcharge of refrigerant
LOW
HIGH
Restriction between compressor and condenser
Restriction inside condenser
NOTE: Service ports are located on suction and discharge hoses at compressor.
- 9250/9350/9352 1
- SELF-PROPELLED 1
- WINDROWER 1
- Proposition 65 Warning 2
- INTRODUCTION 3
- TABLE OF CONTENTS 4
- SERIAL NUMBER LOCATIONS 7
- SAFETY 10
- SPECIFICATIONS 13
- SPECIFICATIONS 14
- TORQUE SPECIFICATIONS 15
- TORQUE SPECIFICATIONS 16
- OPERATOR'S STATION 17
- Symbol Definitions 17
- OPERATOR'S STATION 19
- Mac-Monitor 19
- Mac-Monitor: 20
- Operator Presence System 21
- Speedometer 21
- Ignition Switch 22
- OPERATOR'S STATION 23
- Cab Temperature Controls 23
- Windshield Wiper Control 23
- Windrower Controls 24
- Header Controls 25
- Header Controls (continued) 26
- Seat Belts 27
- Seat Adjustments 28
- Operator Amenities 29
- OPERATION 30
- To the New Operator 30
- Break-in Period 31
- OPERATION 32
- Pre-Starting Checks: Annual 32
- Pre-Starting Checks: Daily 33
- Start-Up Procedure 34
- Driving the Windrower 36
- Stopping Procedure 40
- Leaving the Windrower 41
- Attaching the Header 42
- (continued) 44
- Adding Rear Weight 45
- Detaching the Header 47
- Header Angle 50
- HEADER TILT HYDRAULIC 50
- ADJUSTMENT 50
- Header Levelling 51
- Header Flotation 52
- Transporting the Windrower 53
- Storage Procedure 58
- Service Procedures 59
- Fuels, Fluids and Lubricants 61
- 50 Hours (continued) 64
- 200 Hours or Annually 65
- Diesel Engine 67
- Diesel Engine (continued) 69
- Diesel Engine: Fuel System 73
- Engine Exhaust System 78
- Engine Cooling System 79
- Electrical System 82
- Hydraulic System 91
- Header Drive: Hydraulics 94
- Traction Drive: Hydraulics 99
- MAINTENANCE/SERVICE 100
- Steering Checks 100
- MAINTENANCE/SERVICE 101
- Steering Checks (continued) 101
- Troubleshooting 103
- Procedure (continued) 105
- Friction Device Adjustment 106
- AT HALF-WEAR STAGE 110
- MAINTENANCE/SERVICE 111
- Traction Drive: Park Brake 111
- Cab Air System 112
- Maintenance Schedule 115
- MAINTENANCE RECORD 117
- (continued) 118
- TROUBLE SHOOTING 119
- Electrical 127
- Traction Drive System 128
- Header Hydraulics 131
- Header Drive 131
- TROUBLE SHOOTING 132
- Header Drive (continued) 133
- Park Brake 133
- Operator's Seat 133
- OPTIONS AND ATTACHMENTS 134
- UNLOADING 135
- Prepare to Unload 135
- Two Forklift Method 135
- UNLOADING 136
- One Forklift Method 136
- ASSEMBLY 137
- Install Tires 137
- ASSEMBLY 140
- Battery 140
- ASSEMBLY 141
- Adjustments and Checks 141
- Cab Heater 141
- Preparing the Tractor for 142
- Preparing 972 Harvest Header 145
- Radio Installation 146
- Two-Way Radio Installation 147
- Tool Box 147
- Swath Roller 148
- INDEX 150
- Self-Propelled Windrower 153
- Pre-Delivery Checklist 153
- Roof Wiring Schematic 155
- Cab Wiring Schematic 156
- Tractor Wiring Schematic 157
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