SECTION II
CONTROLS AND OPERATION
TABLE 1-2. DRUM PERFORMANCE DATA (Continued)
Remove the by-pass key from the switch, lo-
cated on the central unit, right after rigging as
unwarranted use of it to override the shut-off
system can result in loss of life, destruction of
property and irrepairable damage to the crane.
The operator is the only person responsible for
safe operation of the crane.
Set up the load weighing system as follows.
1. Turn the program selector switches to the configuration
for main boom/jib and crawler position. See Table 2-1
2. Turn ignition ON.
The green pilot light is ON (F, Figure 2-14)
The red shut-off light is ON (D, Figure 2-14).
The load moment needle moves into the green area of
the seals.
EXAMPLES
The load moment and angle meter are illuminated.
With dial "A" in position 4 and dial "B" in position 3 you
NOTE
monitor:
The shut-off light will come on when the by-pass key
Jib w/crawlers extended, main boom 70'.
switch is in either position.
With dial "A" in position 3 and dial "B" In position 4 you
3. Press and hold the green test button (F, Figure 2-14).
monitor:
The load moment needle will move to the left hand side
Main boom 80' with crawlers retracted.
of the seal.
The yellow pre-warning light will come on.
5. Press the red on button (D, Figure 2-14)(shut-off light/
4. Release the test button.
reset button). The red shut-off light (on button) will go off
when the button is released.
The load moment needle will go back to the original
position.
6. The system is now ready for operation.
The yellow pre-warning light will go off.
The red shut-off light is on.
Repeat the above procedure at least once a day
to test the circuit AND BEFORE EACH MAJOR
TABLE 2-1. PROGRAM SELECTOR SWITCHES
LIFT.
NOTE
LIGHT FLASH ON THE CONTROL PANEL AND THEIR
Program selector switch "A" is the top dial on the
CAUSE
control panel. Switch "B" is the bottom dial.
1 Shut-off light comes ON (D, Figure 2-14): Maximum
allowable lifting capacity is being reached. Needle of the
load meter is in the red. Lower the load or raise the boom
and reset after corrected.
2. Pre-warning light comes ON (E, Figure 2-14): Approxi-
mately 90% of total load moment is reached. CAUTION.
NOTE
If a light flash occurs without reason or cannot be
corrected, consult the manufacturer
2-17
