TM-9-2350-256-20-1

TM 9-2350-256-20-1

0034 00

CORRECTIVE ACTION –Continued

Remove left- and center-front air inlet grilles (see WP 0342 00). Inspect power takeoff coupling to see

that drive shaft is firmly attached to power takeoff coupling. Tighten bolts and/or replace missing bolts

and lockwashers and go sto step 3.

WARNING

Keep hands and arms away from fan blade and drive while engine is running, or serious injury to

personnel will result.

Have assistant start engine. Observe power takeoff coupling and drive shaft. If they are not turning,

remove powerplant (see WP 0098 00). Tighten power takeoff retaining nut. Torque nut to 240–250

lb-ft (1655–1724 N•m) and go to step 4.

Remove hydraulic line intermediate rear right center floor plate (see WP 0296 00). Remove pipe plug

from mechanical transmission and install pressure gage (item 31, WP 0490 00). Operate engine at 1600

rpm. Lubricating oil pressure should be 10–19 psi (69–131 kPa). If lubricating oil pressure is 10–19

psi (69–131 kPa), go to step 5. If lubricating oil pressure is not 10–19 psi (69–131 kPa), notify Direct

Support Maintenance.

Disconnect hydraulic line. Install tee and pressure gage (item 31, WP 0490 00). Connect hydraulic line.

Operate engine at 1600 rpm. Mechanical transmission clutch operating pressure should be 140–225

psi (965–1551 kPa). If clutch pressure is 140–225 psi (965–1551 kPa), go to step 6. If clutch pressure

is not 140–225 psi (965–1551 kPa), notify Direct Support Maintenance.

Inspect hydraulic lines and connections for damage and leaks. Replace hydraulic lines and connections

that show signs of damage. Tighten connections that leak. If leaks persist, notify Direct Support

Maintenance.

Inspect hydraulic components (valves, pumps, cylinders, etc.) for leaks at gaskets and/or seals. Tighten

loose covers, plates, and housings. If leaks persist, notify Direct Support Maintenance.

END OF WORK PACKAGE

0034 00-2

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