TM-5-4210-249-13-P-2

TACTICAL FIRE FIGHTING TRUCK (TFF) MODEL M1142

TECHNICAL MANUAL; OPERATOR’S AND FIELD LEVEL MAINTENANCE MANUAL WITH REPAIR PARTS AND SPECIAL TOOLS LIST (INCLUDING DEPOT REPAIR PARTS AND SPECIAL TOOLS); PART 2 OF 4

TM-5-4210-249-13-P-2 - Page 883 of 1452

TM 5-4210-249-13&P-2

0191-1

DRAFT

0191

FIELD LEVEL MAINTENANCE

FOAM LEVEL PROBE CALIBRATION

INITIAL SETUP:

CALIBRATION

NOTE

•

This calibration procedure must be performed when installing a new foam level probe or

foam level gauge.

•

Both foam level probes are calibrated the same way.

1.

Measure distance between baseline of foam level probe (1) and top (full) of foam level probe (1).

2.

Divide distance measured in Step (1) by two, and mark middle line - 1/2 full on foam level probe (1).

3.

Measure distance between middle line - 1/2 full and baseline on foam level probe (1).

4.

Divide distance measured in Step (3) by two, and mark 1/4 line.

5.

Measure distance between middle line - 1/2 full and top (full) on foam level probe (1).

6.

Divide distance measured in Step (5) by two, and mark (3/4) line.

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

TFFT02814

Tools and Special Tools

Tool Kit, General Mechanic’s: Automotive

(WP 0622, Item 27)

References

WP 0007

WP 0615, Fig. 51

Equipment Conditions

Foam tank level probe removed (WP 0281)

Pump operator’s panel cover opened (WP 0019)