Maintenance
CAB HEATER (PRIOR
TO OCT. 2008)
GDP/GLP80-120DB (GDP170-280DB) [D876];
GDP/GLP130-160EB
(GDP/GLP300-360EB) [D877]
PART NO. 550033397 100 YRM 1458
SAFETY PRECAUTIONS
MAINTENANCE AND REPAIR
• When lifting parts or assemblies, make sure all slings, chains, or cables are correctly fastened, and
that the load being lifted is balanced. Make sure the crane, cables, and chains have the capacity to
support the weight of the load.
• Do not lift heavy parts by hand, use a lifting mechanism.
• Wear safety glasses.
• DISCONNECT THE BATTERY CONNECTOR before doing any maintenance or repair on electric lift
trucks. Disconnect the battery ground cable on internal combustion lift trucks.
• Always use correct blocks to prevent the unit from rolling or falling. See HOW TO PUT THE LIFT
TRUCK ON BLOCKS in the Operating Manual or the Periodic Maintenance section.
• Keep the unit clean and the working area clean and orderly.
• Use the correct tools for the job.
• Keep the tools clean and in good condition.
• Always use YALE APPROVED parts when making repairs. Replacement parts must meet or exceed
the specifications of the original equipment manufacturer.
• Make sure all nuts, bolts, snap rings, and other fastening devices are removed before using force to
remove parts.
• Alwaysfasten a DO NOT OPERATE tag to the controls of the unit when making repairs, or if the unit
needs repairs.
• Be sure to follow the WARNING and CAUTION notes in the instructions.
• Gasoline, Liquid Petroleum Gas (LPG), Compressed Natural Gas (CNG), and Diesel fuel are
flammable. Be sure to follow the necessary safety precautions when handling these fuels and when
working on these fuel systems.
• Batteries generate flammable gas when they are being charged. Keep fire and sparks away from the
area. Make sure the area is well ventilated.
NOTE: The following symbols and words indicate safety information in this manual:
WARNING
Indicates a hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor
or moderate injury and property damage.
On the lift truck, the WARNING symbol and word are on orange background.
The CAUTION symbol and word are on yellow background.
Cab Heater (Prior to Oct. 2008) Table of Contents
TABLE OF CONTENTS
Aurora Heater and Air Conditioner ...................................................................................................................... 1
Heater System ................................................................................................................................................ 1
General ....................................................................................................................................................... 1
Air Conditioning ............................................................................................................................................... 2
General ....................................................................................................................................................... 2
Dryer ........................................................................................................................................................... 3
Control Systems, Sensors, and Switches ................................................................................................... 3
Heater System Repair ..................................................................................................................................... 5
Heater Assembly......................................................................................................................................... 5
Access .................................................................................................................................................... 5
Remove .................................................................................................................................................. 5
Install ...................................................................................................................................................... 5
Heater Assembly Parts, Replace .................................................................................................................... 6
Heater Core ................................................................................................................................................ 6
Remove .................................................................................................................................................. 6
Install ...................................................................................................................................................... 6
Evaporator Core.......................................................................................................................................... 7
Remove .................................................................................................................................................. 7
Install ...................................................................................................................................................... 7
Blower ......................................................................................................................................................... 7
Remove .................................................................................................................................................. 7
Install ...................................................................................................................................................... 7
Water Valve ................................................................................................................................................. 8
Remove .................................................................................................................................................. 8
Install ...................................................................................................................................................... 8
Vent Door .................................................................................................................................................... 9
Remove .................................................................................................................................................. 9
Install ...................................................................................................................................................... 9
Push/Pull Cable, Replace................................................................................................................................ 9
Water Valve Cable ...................................................................................................................................... 9
Remove .................................................................................................................................................. 9
Install ...................................................................................................................................................... 10
Vent Door Cable.......................................................................................................................................... 10
Remove .................................................................................................................................................. 10
Install ...................................................................................................................................................... 11
Electric-Operated Heater Control and Fan Control ......................................................................................... 12
Remove....................................................................................................................................................... 12
Install .......................................................................................................................................................... 12
Cable-Operated Heater Control and Air Control ............................................................................................. 13
Remove....................................................................................................................................................... 13
Install .......................................................................................................................................................... 13
Air Conditioning Switch ................................................................................................................................... 13
Remove....................................................................................................................................................... 13
Install .......................................................................................................................................................... 13
Technical Detail ............................................................................................................................................... 14
This section is for the following models:
GDP/GLP80-120DB (GDP170-280DB) [D876];
GDP/GLP130-160EB (GDP/GLP300-360EB) [D877]
©2011 Yale Materials Handling Corp. i
100 YRM 1458 Aurora Heater and Air Conditioner
Aurora Heater and Air Conditioner
HEATER SYSTEM
General
The Aurora heater system, as used until October 2008,
can be identified by the presence of an air duct at the
rear window. The MCC system, as used after October
2008, does not have this air duct. See Cab Heater
(after Oct. 2008) 100 SRM 1459 for further information
on MCC heater and air conditioning systems.
The heater and optional air conditioning system reg-
ulates the temperature and air flow, which enters the
cab through the air vents at the front and rear windows.
Temperature and air flow are regulated in the heater
assembly which is located at the underside of the cab.
When all doors and windows are closed, air leaves the
cab at the top rear corner, where it is guided through
the channels at the side of the cab. See Figure 1.
The air control knob at the side console is connected to
a vent door in the heater assembly by means of a push/
pull cable. The position of the vent door determines
the ratio of fresh air and recirculated cab air. Fresh
air is admitted through the cab air filter. The cab air
filter is located at the left rear corner of the cab. The
cab air filter can be replaced from outside of the cab.
See Figure 1. Recirculated cab air enters from the side
console through openings in the fuse cover.
A. AIR FLOW
1. HEATER ASSEMBLY 2. CAB AIR FILTER
Figure 1. Ventilation
1
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