ARMY TM 9-6675-349-12&P
MARINE CORPS TM 11039A-12&P
4-3. General - Continued
Item to be
Procedure
inspected
BCU
Check that BCU power switches DC INPUT and OUTPUT are in the OFF position.
IPADS frame
Check that IPADS frame is securely fastened. Check IPADS frame and all clamshell latches for
proper operation.
Cables
Check that power cable W116 is securely connected to BCU and vehicle power.
Wiring harness
Check that wiring harness W114 is securely connected to BCU, CDU and CPNU. If used, ensure
the FOS cable W136 is securely connected to CDU J2 and the FOS. If not used, check that CDU
J2 connector is covered.
Porro-prism
Check that porro-prism cover is securely latched.
cover
Equipment in
Inspect for excessive accumulation of dirt and debris.
general
Cable
Check all cable assemblies for presence of cuts or torn sheathing, kinks, pinches, and scrapes. If
assemblies
present, ask maintenance support to troubleshoot the cable.
HMMWV
Check that hardware securing floor plate to the vehicle is tight .
Installation kit
Alignment
Ensure that all t-handle bolts are hand tight.
bracket
CDU
Check that hardware securing CDU support arm to floor plate is tight, CDU mount is secured to
the support arm, CDU angle adjustment is securely latched, and CDU is securely latched to it's
mount. Check that CDU shock isolators are not broken.
SECTION IV. OPERATOR PREVENTIVE MAINTENANCE CHECKS AND SERVICES
4-4. General. Safe and efficient IPADS operation requires regular checks of equipment. When performing PMCS,
the operator discovers equipment malfunctions or performs routine maintenance for upkeep of the IPADS.
Malfunctions require corrective action to avoid equipment failure or injury to personnel. The necessary
preventive maintenance checks and services to be performed are listed and described in table 4-2. Item
numbers in the tables indicate sequence of minimum inspection requirements. Note defects discovered during
operation for correction after operation. Stop operation immediately if a deficiency is noted which would
damage the equipment. When performing table 4-2, observe the following:
a. Always observe the WARNINGS and CAUTIONS appearing in your PMCS table. Warnings and cautions
appear before applicable procedures. You must observe these WARNINGS to prevent serious injury to
yourself and others and CAUTIONS to prevent your equipment from being damaged.
b. If your equipment fails to operate, troubleshoot with proper equipment. Report any deficiencies using the
proper forms. See DA Pam 738-750, The Army Maintenance Management System (TAMMS). Marine
Corps users shall refer to TM 4700-15/1.
