99903514: TELESCOPIC CRANE: 1-5 SECTION 1: OPERATION
1-4: STARTING CRANE OPERATION
1-4-1: ENGAGING THE POWER TAKE-
OFF (PTO) (IF APPLICABLE)
NOTE:
FOLLOW MANUFACTURER INSTRUC-
TIONS TO ENGAGE THE PTO IN YOUR
VEHICLE. THE INSTRUCTIONS IN THIS
MANUAL MAY NOT BE ACCURATE FOR
ALL PTO’S.
A. Automatic Transmission
1) Set the vehicle parking brake.
2) Turn on the vehicle engine.
3) Put the vehicle in “Park” or “Neutral”.
4) Engage the PTO according to the
manufacturer’s instructions. With an electrical
“Hot Shift” PTO, press the switch to the “ON”
position. NOTE: A light will come on to show the
PTO is engaged.
5) Warm the engine to operating temperature.
6) Begin crane operation.
B. Manual Transmission
1) Set the vehicle parking brake.
2) Place the transmission in “Neutral”.
3) Make certain the PTO lever is in the “OFF”
position.
4) Start the vehicle engine.
5) Fully depress the clutch.
6) Engage the PTO. With a cable-shift PTO,
move the lever to the “ON” position. With an air
shift PTO, move the valve to the “ON” position.
7) Release the clutch gradually.
8) Warm the engine to operating temperature.
9) Begin crane operation.
1-4-2: DISENGAGING THE PTO
1) Fully depress the vehicle’s clutch pedal (if
manual).
2) Disengage the PTO (OFF).
3) Release the clutch pedal gradually.
Figure A-5: PTO
Danger Decal
DANGER:
DO NOT COME IN CONTACT WITH THE
PTO. DEATH OR SERIOUS INJURY MAY
OCCUR.
WARNING:
DISENGAGE THE PTO PRIOR TO MOV-
ING THE VEHICLE. FAILURE TO DO SO
MAY CAUSE PUMP AND PTO DAMAGE,
AND INADVERTENT OPERATION OF THE
CRANE DRIVE TRAIN, WHICH COULD
CAUSE AN ACCIDENT.
1-5: ROTATOR WORM GEAR BREAK-IN
Crane models 3020, 3820, 5020, 5025, 5525,
6025 and 6625 have a rotator worm gear.
BEFORE BEGINNING CRANE OPERATION
WITH A NEW WORM GEAR, the gearset must
be well lubricated. Keystone Moly29 Open Gear
Compound is recommended. The molybdenum
disulfide grease must be liberally brushed on the
gear teeth of the bearing and on the teeth of the
worm before any turning of the rotator. All teeth
need to be covered with grease with no exposed
bare metal areas showing. The first rotations of
the rotator may be rough and may have a
scraping sound. This is normal. The gear and
worm are merely breaking in and will smooth
out with continued use. This amount of time
depends on variables including moment load,
cycles of use, slope of boom tilt, etc.
IMT recommends running the system 10-15
cycles with a light load, then 10-15 cycles with a
medium load and finally 10-15 cycles with a
heavy load.
During the break in period, small shavings of
metal may appear in the grease. If this occurs,
the grease with shavings should be removed
from the gear and a new coat of grease is to be
applied to the gear. This will improve rotation
system performance for the life of the system.
20030115
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