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Operation of a deadlined CBT, BAP, or IRB bay without
preliminary inspection prior to performing troubleshooting
procedures may result in damage to equipment or injury
a. This chapter provides the necessary troubleshooting procedures to diagnose
mechanical and pump malfunctions for BAP and IRB ramp and interior bays.
b. The symptom index has its own work package number and is used to identify
the malfunction and locate the troubleshooting procedure to diagnose the problem.
c. Each troubleshooting procedure lists a description of the malfunction followed
by a step or sequence of steps to perform a test or inspection. Then, in the order of
probability, substeps instruct the user to determine if a condition exists through a
check, inspection, or test, followed by the corrective action required to solve the
d. Prior to performing any troubleshooting procedure, the following recommen-
dations should be observed:
(1) Isolate the system where the malfunction occurs.
(2) Perform the troubleshooting procedure in the order in which steps are listed.
(3) Consider the possibility that the problem could be simple in origin and may
require only a minor adjustment; use common sense.
(4) If a malfunction occurs that is not listed, notify your supervisor.
(5) If a problem cannot be corrected after performing all corrective actions
listed for a malfunction, notify your supervisor.
(6) If the corrective action is not authorized at the operators level, operators
should provide a brief written description of the problem using Equipment
Inspection and Maintenance Worksheet, DA Form 2404 or DA Form 5988-E, and
Maintenance Request, DA Form 2407.
IMPROVED RIBBON BRIDGE (IRB)
RAMP BAY M16
NSN 5420-01-470-5825 P/N 12478918;
INTERIOR BAY M17
NSN 5420-01-470-5824 P/N 12478919.
Section I. INTRODUCTION TO TROUBLESHOOTING
END OF WORK PACKAGE