Dixon SpeedZTR 968999545 - Manual (Page 23)

OPERATION INSTRUCTIONS
23
TOWING TRAILERS & OTHER ATTACHMENTS:
Towing a trailer or other attachment that is too heavy
could damage the drive or cause the mower to become
unstable. Limit loads to 150 pounds (68 kg) or less with
this mower.
To Free Wheel Machine
(Unlock Transmission):
Always turn off engine before engaging or disengaging
the hydro release (free wheel) lever. Never attempt to
move the lever with the engine running.
Pull the hydro release levers toward the rear of the
machine and inward until notches lock in place on
frame. (See Fig. 5) Release park brake.
To engage the transmissions, move the release levers
outward so they return to normal position.
NOTE: Before pushing or towing tractor, transmission must be
unlocked and park brake released. The tractor should
never be pulled at more than 2 miles per hour (3.2 km/h)
or for distances over ¼ mile (.402 km). Trailer the unit for
distances over ¼ mile.
— Fig. 5 —
Hydro Release Levers