COUPLE TO TRUCK (ALL EXCEPT M917A1 AND M917A1
Do not use trailer handbrake as primary brake to
keep tension on coupling system. This will cause
undue tension on brakes and coupling which could
result in injury to personnel or damage to equip-
ment. Prevent problems with slack in fifth wheel by
using good braking habits and adjusting coupling
and braking systems properly.
DO NOT tow 6,000 gallon water distributors with a
partial load except when in use on construction
sites and a maximum speed of 10 mph. When towing
outside of construction sites, TRAILERS MUST BE
EMPTY OR FULL. Either drain water distributor
empty (preferred) or fill to capacity. MAXIMUM
SPEEDS FOR BOTH TRAILERS ARE: HIGHWAY 55
MPH, GRAVEL/DIRT 30 MPH, OFF-ROAD 5 MPH.
Failure to follow this warning could result in unsafe
driving conditions causing serious injury or death to
personnel and damage to equipment.
When towing model WD6S 6,000 gallon water dis-
tributor, fifth wheel must be in rear setting (LOAD
HAUL-M172). For model 60PRS, fifth wheel must be
at rear setting (LOAD HAUL M172) to load and front
setting (HAUL M870) to tow. For all models, travel
lockout must be engaged to prevent side-to-side
oscillation of water distributor. Failure to follow this
warning could result in unsafe driving conditions
causing serious injury or death to personnel and
damage to equipment.
If towing M172 or M872 trailer, rear mud flaps must be
removed and stowed. Failure to follow this caution may
result In equipment damage.
On M916A1 and M916A2, make sure secondary lock release handle
is pulled OUT (paragraph 2-22).