Manitowoc GROVE RT890E Operator's Manual page 48

OPERATING CONTROLS AND PROCEDURES
OPERATING PROCEDURES
Pre-Starting Checks
A complete walk-around visual inspection of the crane
should always be made with special attention to structural
damage, loose equipment, leaks, or other conditions that
would require immediate correction for safety of operation.
The following checklist items are suggested specifically for
the operator's benefit to make certain his crane is prepared
for starting the day's work.
Fuel Supply
Check the fuel level and make sure the cap is on tight.
Engine Oil
Check the oil level in the crankcase and fill to the FULL mark
on the dipstick. Do not overfill.
Engine Coolant
Check the coolant level in the radiator and fill to the proper
level. Do not overfill and check to make sure the cap is
secure.
Batteries
Check that the battery cables and clamps are tight and not
corroded.
Signal and Running Lights
Check all signal and running lights for proper operation.
Replace burned out lamps with those of the same number or
equivalent.
Foot and Parking Brakes
Check the foot and parking brakes for proper operation.
Daily Lubrication
Make certain that all components requiring daily lubrication
have been serviced. (Refer to Section 5, Lubrication.)
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.
3-12
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.
Boom
Ensure the large access cover on top of the boom base
section is in place. The boom should not be operated unless
it is installed.
Air Cleaner
Check the filter restriction indicator. Check filter and tubing
for security.
Cold Weather Operation
The following recommendations are for operating Grove
cranes in very low (i.e., sub-zero) 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 Grove
Worldwide. Cranes should have appropriate hydraulic oil,
lubricants, and other auxiliary items required for operation in
sub-zero temperatures. 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 temperatures
between -18°C (0°F) and -40°C (-40°F) or lower should be
accomplished only by competent operators who possess the
skill, experience, and dexterity to ensure smooth operation.
Shock loading shall be avoided.
Operation Below -40°C
For crane operation below -40°C, capacities shall be de-
rated 3.67 percent of the rated load shown on the capacity
charts for each degree below -40°C.
Operation Below -40°F
For crane operation below -40°F, capacities shall be de-rated
2 percent of the rated load shown on the capacity charts for
each degree below -40°F.
Engine Operation
Starting and shutdown procedures for most diesel engines
generally follow the same pattern. Therefore, the following
procedures can be applied except where specific differences
are noted. (Refer to the applicable engine manufacturers
manual for detailed procedures.)
RT890E