QUALITY ASSURANCE REQUIREMENTS.

MWO 9-2320-287-35

A p p l y the service brakes of the towing truck and have a s s i s t a n t check

dx.

operation of rear truck stoplights.

P u t t h e t o w i n g t r u c k i n m o t i o n , a p p l y s e r v i c e b r a k e s , a n d check operation of

dy.

the rear truck.

NOTE

I f either stoplights or brakes do not operate, recheck hose and

wire connections.

If still not operating properly, perform

t r o u b l e s h o o t i n g procedures in TM 9-2320-270-34.

END OF PROCEDURE

12.

CALIBRATION REQUIREMENTS. Not Applicable.

13.

WEIGHT AND BALANCE DATA.

Weight and balance are not significantly affected.

14. QUALITY ASSURANCE REQUIREMENTS.

P e r f o r m the following to test operation of the system:

a. On the vehicle to be towed, disconnect the front and rear shafts.

b. C o n n e c t the towing vehicle to the towed vehicle using the appropriate tow

b a r . C o n n e c t the gladhands on the towing vehicle to those on the towed vehicle

using the interconnecting hoses provided with the kit.

WARNING

DO NOT CORSS HOSES. Service gladhand assembly (blue) goes on

t h e right side of M911 truck tractor, emergency gladhand assembly

(red) goes on the left.

c . B u i l d up the air system pressure to 90 psi (620.44 Kpa) and check to see if

t h e failsafe parking brakes are released on the towed vehicle. Do this by pulling

and seeing if the rear tires roll or skid.

drive the combination at 20 mph (32.18 kph) and apply the brakes to

b r i n g it to

a stop (Federal regulations require that the combination stop within 90

f e e t (27.45

m) at a speed of 20 mph (32.18 kph). Perform this test no less than

five times

to check consistency, compatibility; etc.

e . W i t h t h e v e h i c l e s t a n d i n g s t i l l a n d the transmission in park, speed up engine

A p p l y brakes in rapid s u c c e s s i o n , then fully. Check to see if you

to 1200 rpm.

h a v e 70 psi or more on the air gage

Check for proper operation of the brake lights on the towed vehicle.