Upper Boom Angle Pre-Set - Kruger HAP Manual

PAT America, Inc.
BOOM LENGTH
The Main Boom Length is displayed on this meter. Various scales are used
depending on the Boom Length.

2. UPPER BOOM ANGLE PRE-SET

The Upper boom angle limit is set by rotating the selector switch. This setting
determines the maximum boom angle for crane operation.
If the actual boom angle is equal to or exceeds the pre-set value; the RED pilot light (4) and the
electronic buzzer, located on the back of the panel, are activated. The warning is cleared by
lowering the boom to an angle less than the Upper Pre-Set value.
The electronic buzzer can be temporarily silenced by pushing the horn/pilot light
button (4). The horn warning is automatically reset when the warning is cleared.
3. LOWER BOOM ANGLE PRE-SET
The Lower boom angle limit is set by rotating the selector switch. This setting determines the
minimum boom angle for crane operation.
If the actual boom angle is equal to or goes below the pre-set value; the RED pilot light (4) and
the electronic buzzer, located on the back of the panel, are activated. The warning is cleared
by raising the boom to an angle greater than the Lower Pre-Set value.
The electronic buzzer can be temporarily silenced by pushing the horn/pilot light button (4). The
horn warning is automatically reset when the warning is cleared.
4. HORN / PRE-SET LIMIT PUSH BUTTON
The RED push button is the visual warning that one of the pre-set angles has been reached or
exceeded. This push button also temporarily silences the audible electronic buzzer. Temporarily
disabling the electronic buzzer does not turn off the RED light.
5. "L" LENGTH PUSH BUTTON
Push this button when you want the analog meter to display the actual boom length. The button
will light to indicate that the Boom Length is being displayed. The length is the distance from the
boom pivot pin to the center of the boom head sheaves.
This button is only used on the HLAP Indicator.
H(L)AP - AA 103 - Operator (RE699) Page 5