TM 5-3805-248-23-2
CONTROL GROUP PRESSURE TEST - CONTINUED
0284 00
TESTING
1.
Connect battery negative ground (WP 0104 00).
HAND LEVER
2.
Operate engine (TM 5-3805-248-10).
3.
Allow engine to reach operating temperature.
4.
Turn hand lever until tachometer on transmission
hydraulic test set reads 750 RPM.
394-825
NOTE
All pressures recorded will be used in later steps. Engine RPM, transmission speed and tap designation (A,
B, C, D, E and F) should also be recorded for later reference purposes.
5.
Record pressure gage readings for taps A, B and C, engine RPM and transmission speed.
6.
Position transmission speed select lever in NEUTRAL.
7.
Record pressure gage readings for taps A, B and C, engine RPM and transmission speed.
8.
Turn hand lever until tachometer on transmission hydraulic test set reads 900 RPM.
9.
Shut down engine (TM 5-3805-248-10).
10.
Vent air tank (TM 5-3805-248-10).
11.
Disconnect air line (7) from transmission hold valve
under operator compartment floor.
12.
Install 0-100 psi air pressure gage in transmission con-
7
trol valve.
13.
Connect air line (7).
14.
Operate engine (TM 5-3805-248-10).
15.
Observe 0-100 psi air pressure gage reading. If read-
ing is less than 65 psi, transmission control valve may
need replacement or repair (WP 0174 00).
16.
Shut down engine (TM 5-3805-248-10).
17.
Disconnect air line (7).
18.
Remove 0-100 psi air pressure gage.
394-826
19.
Connect air line (7).
0284 00-5
