Preventive Maintenance - Kruger HAP Manual

PAT America, Inc.
The "H(L)AP" Indicating System uses electronic, electrical and mechanical components. The
system should only be serviced by PAT-KRUEGER Corporation, Inc. Service Technicians or
those who have received special training from Krüger GmbH or their authorized representatives.
The operator retains the responsibility for inspection of the system components. To insure that
no external damage will affect proper system operation inspections should include:
DAILY INSPECTION
1. Inspect all anti-2-block switches for free movement of the lever arm that supports the
counterweight.
2. Counterweights should be free of obstructions in the operating position and installed on all
switches where a load line is being used for a lift.
3. Insure that the anti-2-block portion of the system is properly wired at the boom nose.
A. Install JUMPER CABLE from auxiliary attachment to the boom nose receptacle, if used.
B. Install DUMMY PLUG in the boom nose receptacle, if the machine is equipped with two
(2) winches and NO auxiliary attachment is being used.
4. Check for proper connection of the Anti-Two-Block cable at the strain relief anchor at the
boom head.
5. Closely inspect the cable between the Anti-Two-Block switch at the boom head and the cable
reel on the boom base section for cuts and/or abrasions.
6. Check anti-2-block operation. Individually lift each counterweight. The RED - A-2-B light on
the Control Panel should be lit and the audible alarm should sound. If equipped with an
optional Crane Function Shut Off System, this system should be deactivated.
7. Report all damage to your supervisor for appropriate action
SEMI-ANNUAL INSPECTION
In addition to the requirements of the DAILY INSPECTION the LENGTH and ANGLE
INDICATING portion of the system should be tested.
Length and Angle Indicating system testing should be performed by a Service Technician of PAT-
KRUEGER Corporation, Inc. or someone who has received special training by Krüger GmbH or
their authorized representatives.
1. All functions of the System will be inspected for continued compliance with manufacturer
operational specifications.
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PREVENTIVE MAINTENANCE
H(L)AP - AA 103 - Operator (RE699)