Grove Published 3-23-2020, Control # 654-04 4-9
GRT655/655L OPERATOR MANUAL OPERATING PROCEDURES
Battery Disconnect
The battery disconnect switch is located on the battery box
cover on the left side of the crane. To disconnect the
batteries, turn battery disconnect switch to the OFF position.
If necessary, lock the battery disconnect in the OFF position
using a padlock. Turn switch to the ON position to connect
the batteries.
COLD WEATHER OPERATION
The following recommendations are for operating Grove
cranes in regions with ambient temperatures below -9°C
(15°F) which are considered arctic.
NOTE: Additional information regarding engine cold
weather operation is available through your
Cummins dealer/service center under Service
Bulletin 3379009.
Use particular care to make sure cranes operated in very
cold temperatures are operated and maintained in
accordance with procedures provided by Grove. Always
make sure there is adequate lubrication during system
warm-up. Regardless of crane lubricant viscosity, always
follow cold weather warm-up procedures described in the
section Crane Warm-up Procedures, page 4-11. For proper
cold weather lubricants, refer to the section Arctic Lubricants
and Conditions, page 6-4.
If in doubt of suitability for a specific fluid or lubricant, check
with an authorized Grove distributor or Manitowoc Crane
Care. Cranes should have appropriate hydraulic oil,
lubricants, and other auxiliary items required for operation in
arctic temperatures.
Grove Crane recommends the crane be equipped with the
following cold weather accessories:
Down to -29°C (-20°F) Package
• Battery heater
• Transmission heater
• In-line fuel heater
• Engine hood insulation
• Fan clutch
• Radiator shutters
• Air diverter
• Diesel fired cab heater
• Cold weather alternator
• Fluids suitable to -29°C (-20°F)
- Arctic windshield washer fluid
- Arctic fuel
Down to -40°C (-40°F) Package
• Coolant heater (to circulate warm coolant through
heaters and engine)
• Transmission heater
• Hydraulic swivel heater
• Battery heater
• In-line Fuel heater
• Engine hood insulation
• Fan clutch
• Radiator shutters
• Air diverter
• Diesel fired cab heater
• Cold weather alternator
• Super-capacitor starting system
• Fluids suitable to -40°C (-40°F):
- Arctic windshield washer fluid
- Arctic fuel
Individual crane functions should be operated to make sure
they are sufficiently warmed prior to performing a lift. Allow at
least 30 minutes of engine run time for warm up.
For crane operation below -40°C (-40°F), derate load chart
capacities by 6.60% for each degree Celsius or by 3.67% for
each degree Fahrenheit below -40°C (-40°F).
Operation of cranes at full rated capacities in ambient
temperatures below -9°C (15°F) should be accomplished
only by competent operators who possess the skill,
experience, and dexterity to make sure smooth operation.
Shock loading shall be avoided.
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