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 TM 55-1905-219-14-10
5-33. ENGINE ASSEMBLY-REMOVAL AND RUN IN-MAINTENANCE INSTRUCTIONS (Continued)
LOCATION
ITEM
ACTION
REMARKS
ENGINE RUN-IN INSTRUCTIONS (Cont)
(b) In some cases, gages reading in pounds per
square inch are used for determining pressures
while standard characteristics are given in
inches of mercury or inches of water. It is
extremely important that the scale of such a
gage be of low range and finely divided if
accuracy is desired. This is especially true
of a gage reading in psi, the reading of which
is to be converted to inches of water. The
following conversion factors may be helpful.
Inches of water = psi x 27.7 inches
Inches of mercury = psi x 2.04 inches
(4) Run-In Procedure
The procedure outlined below will follow the
order of the sample Engine Test Report on page
(a) Pre-Starting
1. Fill the lubrication system.
2. Prime the fuel system.
3.
A preliminary valve clearance adjustment
must be made before the engine is started.
4. A preliminary injector timing check must
be made before starting the engine.
5. Preliminary governor adjustments must be
made.
6. Preliminary injector rack adjustment must
be made.
5-524
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