Manitowoc Grove GRT9165, Service Manual

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ELECTRICAL SYSTEM GRT9165 SERVICE MANUAL
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Published 10-01-2020 Control # 699-00
5. Click Continue.
The Fault code information is displayed.
6. Click OK to return to the main screen.
OPTIONAL EQUIPMENT
This section is provided to give a brief description of optional
equipment for the crane which is not discussed elsewhere in
this service manual.
Beacon Light
The beacon lights are installed on the left side of the
turntable in front of the main hoist.
Boom Mounted Floodlights
The boom light switch is located in the cab overhead panel.
The switch is an On/Off rocker switch that will turn the lamps
located on the underside of the boom On and Off.
Rear View Mirror
The rear view mirror installation consists of a rear view mirror
mounted on the top left corner of the cab. Mirror can be
adjusted for optimum view from cab while boom is over front
of crane.
Air Conditioner
An electrically driven air conditioner is installed on the left
side of the turntable. It consists of an engine-mounted
compressor motor, condenser unit, and a cab unit mounted
under the operators seat. It is turned on and off by a rotary
switch mounted on the overhead console. Refer to Air
Conditioner Control Switch (Optional) in the Operator
Manual (Section 3 -Operating Controls and Procedures).
When servicing the air conditioning system, observe the
following specifications:
• Minimum Evacuation Time — 60 minutes
• Refrigerant Charge Levels — 2.5 pounds (± 0.5 oz)
• Additional Pag Oil Required Above the 6 ounces in
Compressor — 5.0 ounces
Cold Weather Operation
Regions with ambient temperatures below -9°C (15°F) are
considered arctic. The following recommendations are for
operating Grove cranes in very low temperatures.
Use particular care to ensure that cranes being operated in
very cold temperatures are operated and maintained in
accordance with the procedures as provided by Manitowoc.
Always ensure adequate lubrication during system warm-up
and proper operation of all crane functions when operating in
cold weather. Regardless of oil viscosity, always follow cold
weather start-up and operating procedures described in the
Operator Manual. To ensure adequate lubrication during
system warm-up and proper operation of all crane functions,
Refer to
Warm-up Procedure , page 5-2.
Individual crane functions should be operated to ensure they
are sufficiently warmed prior to performing a lift.
Operation of cranes at full rated capacities in ambient
temperatures between -9°C and -40°C (15°F and -40°F) or
lower should be accomplished only by competent operators
who possess the skill, experience, and dexterity to ensure
smooth operation.
Component Coolant Heater
A diesel fueled coolant heater circulates warm coolant
through engine and crane components when operating
during arctic temperatures. The coolant heater should be
activated 2 hours before starting the crane to allow sufficient
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