TM 5-3895-382-24
6.
Connect a 60 000 kPa (8700 psi) pressure gauge from
Tooling (B) to drum forward test port (6) on cooling and
test valve (7).
7.
Connect Tool (C) to forward flushing valve test port (8).
8.
Move the speed selection switch to the HIGH speed
position.
9.
Start the engine and run at high idle, with the propel
lever in NEUTRAL, until the pressure on Tool (C) has
stabilized. Record the pressure.
NOTICE
Do not move the propel lever in REVERSE or damage to
the gauge will result.
10.
Slowly move the propel lever in the FORWARD
direction until the pressure gauge connected at test port
(6) reads 10 335 kPa (1500 psi). Look at the flushing
valve test port gauge and record the pressure.
11.
Subtract the pressure recorded in step 10, from the
pressure recorded in step 9, to determine the difference.
The difference should be 310 ± 138 kPa (45 20 psi).
12.
Connect a 60 000 kPa (8700 psi) pressure gauge from
Tooling (B) to drum reverse test port (9) on the cooling
and test valve (7).
13.
Connect Tool (C) to reverse flushing valve test port (10).
14.
Move the speed selection switch to the HIGH speed
position.
15.
Start the engine and run at high idle, with the propel
lever in NEUTRAL, until the pressure on Tool (C) has
stabilized. Record the pressure.
NOTICE
Do not move the propel lever in FORWARD or damage to
the gauge will result.
16.
Slowly move the propel lever in the REVERSE direction
until the pressure gauge connected at test port (9) reads
10 335 kPa (1500 psi). Look a the flushing valve test
port gauge and record the pressure.
17.
Subtract the pressure recorded in step 16, from the
pressure recorded in step 15, to determine the
difference. The difference should be 310 ± 138 kPa
(45 ± 20 psi).
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