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TM 9-2990-206-34&P
CHAPTER 4
TEST AND PRESERVATION
(2) Wrap turbosupercharger with
4-1. TEST.
Waterproof, Greaseproof Barrier Mater-
Since turbosupercharger performance de-
ial (MIL-B-121, Type II, Grade A, Class
2).
pends on engine performance, the turbo-
(3) Wrap turbosupercharger in
supercharger cannot be tested unless it
is installed on an engine. Therefore,
Wrapping and Cushioning Paperboard (Fed-
testing a turbosupercharger not mounted
eral Specification PPP-P-291, Style I,
Type III).
on an engine will consist only of check-
ing the turbine wheel for free rotation
(4) Tape securely with Paper Pack-
and making certain that turbine wheel
ing/Masking Tape (Federal Specification
radial clearance and end play does not
PPP-T-42).
exceed dimensions given on page 2-4.
(5) Place package in a carton made
If the turbosupercharger passes these
from Fiberboard Shipping Box Material
tests, it will perform satisfactorily
(Federal Specification PPP-B-636, Style
when installed on an engine.
RSC, Type CF, Grade 125, Class DOM).
(6) Tape carton securely with
Waterproof Packaging Tape (Federal
Specification PPP-T-60).
CAUTION
b. Long Term Storage.
Turbosuperchargers must be
(1) P reserve and package turbo-
lubricated before installation
supercharger as outlined above.
on an engine.  Fill the center
(2) Place carton in Interior Pack-
housing through the oil inlet
aging Sleeve and Tubing Bag (Federal
port with engine oil (OE/HDO 30)
Specification MIL-B-117, Style I, Type
before installing the oil inlet
I, Class E).  Seal bag using standard
hose.
heat sealing equipment.
(3) Place sealed bag in a carton
made from Fiberboard Shipping Box Mater-
4-2. PRESERVATION.
ial (Federal Specification PPP-B-636,
Style RSC, Type CF, Grade 125, weather
a. Short Term Storage.
Resistant).
(1) Fill turbosupercharger center
(4) Tape carton securely with
housing with Preservative General Purpose
Waterproof Packaging Tape (Federal
Lubrication Oil (VV-L-8OO). Apply a
Specification PPP-T-60).
light coat of the same oil to the exter-
ior surface.  Drain excess oil.
4-1/
4-2
BLANK

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