FUEL METERING PUMP ADJUSTMENT - CONTINUED -624880285

TM 5-2420-222-20-1

FUEL METERING PUMP ADJUSTMENT - CONTINUED

ACTION

LOCATION

ITEM

REMARKS

ADJUSTMENT - CONTINUED

WARNING

Be careful of moving parts when working near engine while it is running. Moving parts could catch on tools, clothing, or

extremities causing serious injury.

9. Arm (1)

Lever (2)

a. Push forward all the way.

b. Have assistant note engine speed

on tachometer (3).

Engine speed should be 800 to

825 rpm.

NOTE

If engine speed is correct, skip steps 10 thru 12.

10. Cover (4) and

Nut (6)

Using two 5/16-inch open-end wrenches,

low idle adjustment

loosen.

screw (5)

11. Cover (4) and

Low idle adjustment

a. If engine speed noted in step 9 was

nut (6)

screw (5)

less than 800 rpm, using 5/16-inch

open-end wrench, turn clockwise.

b. If engine speed noted in step 9 was

more than 825 rpm, using 5/16-inch

open-end wrench, turn counter-

clockwise.

12. Cover (4) and

Nut (6)

a. Using two 5/16-inch open-end

low idle adjustment

wrenches, tighten.

screw (5)

b. Repeat step 9 thru 12.

13. Loader backhoe

Engine

Shut down (TM 5-2420-222-10).

14. Lever (2)

Speed control

Place in position.

rod (7)

15. Speed control rod

Washer (8)

Place in position.

(7) and lever (2)

16. Speed control rod

New cotter pin (9)

a. Place in position.

(7) and washer (8)

b. Using long roundnose pliers, bend ends

back.

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