Manitowoc Grove RT770E User Manual

OPERATING CONTROLS AND PROCEDURES RT770E OPERATOR MANUAL
3-22 Published 04-04-2017, Control # 446-09
Hydraulic Reservoir and Filter
Check hydraulic fluid quantity level and filter condition
indicator. Check breather for cleanliness and ensure it is
secure.
Tires
Check for severe cuts, foreign objects embedded in treads,
and for correct inflation pressures. A tire inflation chart,
providing the correct air pressures, is located in the Load
Chart Book in the crane cab.
Wire Rope
Inspect wire rope in accordance with applicable Federal
Regulations.
Inspect sheaves, guards, guides, drums, flanges, and any
other surfaces that may come in contact with the rope for any
condition that could cause possible damage to the rope.
Hook Block
Visually inspect for nicks, gouges, cracks, and evidence of
any other damage. Replace any hook that contains cracks or
shows evidence of excessive deformation of the hook
opening, including twist. Be sure the safety latch is free and
aligned.
Air Cleaner
Check the filter restriction indicator. Check filter and tubing
for security.
COLD CLIMATE ENGINE OPERATION
Engine specific cold climate operation information is
available through your Cummins dealer/service center under
Service Bulletin 3379009.
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 cold weather
operation is available through your Cummins
dealer/service center under Service Bulletin
3379009.
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.Therefore, always ensure adequate lubrication
during system warm-up and proper operation of all crane
functions when operating in cold weather and regardless of
the oil viscosity of the crane’s lubricants, always follow the
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 Arctic Lubricants and Conditions, page 5-3.) If in
doubt of the suitability of a specific fluid or lubricant, check
with an authorized Manitowoc distributor or Manitowoc
Crane Care. Cranes should have appropriate hydraulic oil,
lubricants, and other auxiliary items required for operation in
sub-zero temperatures.
Manitowoc recommends the crane is equipped with the
following cold weather accessories:
Down to -29°C (-20°F) Package
• Battery heater
• Fuel line heater
• Engine hood insulation
• Fan clutch
• Radiator air 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
• Swivel heater
• Battery heater
• Fuel line 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 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

Manitowoc Grove RT770E Specifications

General

Brand	Manitowoc
Model	Grove RT770E
Category	Construction Equipment
Language	English