Table 17. Power Takeoff (PTO) Troubleshooting Procedures

TM 9-2320-361-24-1

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MECHANICAL SYSTEMS TROUBLESHOOTING - UNIT (Contd)

Table 17. Power Takeoff (PTO) Troubleshooting Procedures (Contd).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Check PTO. Engage power takeoff

1. If propeller shaft is noisy, inspect

3. PTO INOPERATIVE

and visually confirm output

propeller shaft and universal

(TRANSMISSION-

propeller shaft rotation.

joints. If propeller shaft is bent

DRIVEN)

or universal joints have play,

repair or replace (WP 0346 00).

2. If propeller shaft is not rotating,

inspect control linkage. Adjust

control linkage and replace

defective parts (WP 0347 00).

3. If problem still exists, replace

PTO (WP 0349 00).

Check PTO. Engage and visually

1. If propeller shaft is noisy, inspect

4. PTO INOPERATIVE

confirm output propeller shaft

propeller shaft and universal

(TRANSFER-DRIVEN)

rotation.

joints. If propeller shaft is bent

or universal joints have play,

repair or replace (WP 0139 00).

2. If propeller shaft is not rotating,

inspect control linkage. Adjust

control linkage and replace

defective parts (WP 0133 00).

3. If problem still exists, replace

PTO (WP 0348 00).

Table 18. Non-Electrical Gauges Troubleshooting Procedures.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. Inspect speedometer or

If drive shaft is bent or kinked,

1. SPEEDOMETER OR

tachometer drive shaft for

replace (WP 0097 00, WP 0098 00,

TACHOMETER BOUNCES,

binding and kinks.

or WP 0099 00.)

NOISY, OR INOPERATIVE

2. Remove speedometer or

If cable is operating properly,

tachometer (WP 0096 00) and

replace speedometer or tachometer

check speedometer or tachometer

(WP 0096 00).

cable operation.

3. Check drive unit on transfer

If drive unit is damaged, replace

case.

(WP 0097 00, WP 0099 00).

Check air pressure with a known

If test gauge works properly,

2. AIR PRESSURE GAUGE

working air pressure gauge.

replace inoperative air pressure

INOPERATIVE

gauge (WP 0094 00).

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