approval has been given by the support-
ing field organization.
Checks and Services
(1) Adjust. Make all necessary ad-
justments in accordance with in-
Item to b e
structions contained in the per-
tinent section of this technical
Check for dam-
manual or technical bulletin.
aged or frayed
(2) Clean. Clean the unit as outlined
lubricant, dirt, and other foreign
(3) Tighten. All tightening opera-
tions should be performed with
tighten the unit according to good
Start tester vacu-
mechanical practice. Do not
um pump, plug
over-tighten, as this may strip
threads or cause distortion.
and check to
see if vacuum
Tightening will always be under-
stood to include the correct in-
nuts, locking wire, or cotter pins,
pump as re-
to secure the tightened nut.
Check for dents
59. Specific Procedures for Second Echelon
to be performed on the vehicle by sec-
ond-echelon personnel for each monthly
S e c t i o n IV. TROUBLESHOOTING
For troubleshooting procedures by the
Troubleshooting is a systematic de-
termination of malfunctions and defective
components by indications, symptoms,
and tests. Close adherence to the proce-
Malfunctions which may occur with the
dures covered herein will materially re-
duce the time required to locate trouble
and restore the materiel to normal op-
II. Causes are listed opposite each mal-
function and are arranged according to
Caution: Operation of materiel without
the ease of correction.
a preliminary examination can c a us e
further damage to a disabled component.
Be careful during inspection and trouble-
shooting, so that damage can be avoided.
see that wires
This section covers troubleshooting
which is peculiar to organizational (sec-
ond echelon) maintenance operations.