TM-9-2320-209-10-1

2 1/2-TON, 6X6, M44A1 AND M44A2 SERIES TRUCKS (MULTIFUEL)

TECHNICAL MANUAL; OPERATION, INSTALLATION AND REFERENCE DATA; OPERATOR LEVEL

SEPTEMBER 1980

TM-9-2320-209-10-1 - Page 395 of 549

TM 9-2320-209-10-1

FRAME 4

WARNING

1.

2.

3.

Do not let personnel stand near auger while boring or

spinning soil off auger.

Soil spun off may contain objects

that can cause injuries.

CAUTION

To prevent damage to boring machine, do not make sudden

starts (impact loads) when starting to bore. Do not load

auger above bumper spring.

When auger point (1) enters ground, push drive control lever (2) and feed control

lever (3) forward to start boring (position 4, table 4-3).

Keep auger turning speed down to 25 rpm (1800 engine rpm) until hole is about

18-inches deep.

If auger is working smoothly, set auger turning speed for type of soil. (Refer to

table 4-4 and para 4-15h.)

GO TO FRAME 5

Table 4-4. Gear, Speed Settings for Soil Conditions

Transmission

Soil Type

Gear

Sandy Clay,

Ordinary Soil

3rd

Disintegrated

Shale, Similar

1st

2200-2650

90-110

Sandstone,

Frozen Soil

I

2nd

Engine Speed

Auger Speed

(rpm)

(rpm)

1800

25

1700-2400

40-60

4-34 1