ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
TEST OR INSPECTION
83. PTO DOES NOT ENGAGE.
Perform PTO engagement procedure (TM 5-3805-254-20), then attempt to
If PTO still does not disengage, notify Direct Support Maintenance.
If PTO does engage, go to step 2.
Check that air pressure on AIR PRESSURE GAGE (1) indicates above 90 psi.
If AIR PRESSURE gage (1) does not indicate above 90 psi, go to Mal-
function 64, AIR PRESSURE DOES NOT EXCEED 90 PSI, (page
If AIR PRESSURE gage (1) indicates above 90 psi, go to step 3.
Check for air pressure at output fitting (2) on PTO IN/OUT switch (3) as
follows: Using 7/16-inch open-end wrench, unscrew and take off air hose
(4), move PTO IN/OUT switch (3) to IN position, and check for air
pressure at output fitting (2).
If air pressure is not present, go to step 4.
If air pressure is present, screw on and tighten using 7/16-inch
open-end wrench, and go to step 5.