TB-9-2320-279-13-P-4

TRUCK, TRACTOR, LIGHT EQUIPMENT TRANSPORTER (LET), 8X8, M983A2 LET

TECHNICAL BULLETIN; OPERATOR AND FIELD LEVEL

APRIL 2008

TB-9-2320-279-13-P-4 - Page 179 of 744

NOTE

If outside temperature is 0°F (-17°C) or lower, hydraulic fluid may be below operating

temperature. Operating system with PTO end hydraulic pump engaged should warm

hydraulic fluid to an operating temperature.

1. Pull selector valve out. (WP 0015)

2. Start engine (refer to TM 9-2320-279-10).

3. Set PTO ENGAGE switch to ON. (WP 0015)

4. Operate engine for 20 minutes.

5. Check hydraulic fluid temperature at reservoir. Reservoir should be warm.

H

Y

DRAULIC

RESERVOIR

Figure 2.

6. Push WINCH KICKOUT control valve in to ENGAGE position. (WP 0015)

7. Prepare vehicle for heavy-duty winch operation. (WP 0015)

8. Operates heavy-duty winch manual controls, observe heavy-duty winch control operation. (WP 0015)

CONDITION/INDICATION

Do controls stick in engaged position after running engine for 20 minutes?

DECISION

No - Test 3 - Is hydraulic fluid overheated?

Yes - Test 4 - Do winch controls operate normally?

TEST 3 - Is hydraulic fluid overheated?

1. If PTO is engaged, set PTO ENGAGE switch to OFF. (WP 0015)

TB 9-2320-279-13&P-4

0020

0020-3