Snorkel TB100J User Manual
Page 79
12. OPTIONS
4
12 -
P/N 0112478
7. Rotate the turntable until the counterweight is
to the front, then raise the platform about 3 feet
(1 m) to keep it from hitting the ground when you
start up a grade.
8. Pull the STEERING FLOAT VALVE (top front
of chassis) knob out.
D A N G ER
A “runaway” TB100J can cause death or
serious injury. Disconnecting the disconnect-
plates will allow the TB100J drive wheels to
turn freely. Before proceeding, be certain the
tow bar is installed and connected to a
towing vehicle that can safely control both
itself and the 33,000 pound (15,000 kg)
TB100J. Be certain the tow vehicle brakes are
set.
1
2
3
9. Remove the two bolts that hold each drive-
wheel disconnect-plate.
10. Turn each disconnect-plate over so that the
nipple points inward, then retighten the bolts.
D A N G ER
At the end of the tow, before you disconnect
the TB100J from the towing vehicle, turn the
disconnect-plates back over so the nipples
are out. This will prevent the TB100J from
rolling when you disconnect it from the tow
vehicle.
11. Reverse the above procedure at the end of
the tow.
T
FOUR-WHEEL DRIVE (4x4)
From the operational point of view, the only
difference between the optional four-wheel drive
(4x4) and the standard two-wheel drive is that
the maximum speed of the 4x4 is determined, in
part, by the settings of both the DRIVE RANGE
switch and the HIGH RANGE SPEED
SELECTOR (HRSS) VALVE.
The HRSS VALVE works with the DRIVE
RANGE switch and boom position, according to
the following table, to determine the maximum
speed the chassis can travel along the ground.
DRIVE RANGE Table
MAX.
SPEED
DRIVE
RANGE
HRSS
VALVE
boom
position
3.0 mph
(4.8 km/hr)
HI
up
stowed
1.5 mph
(2.4 km/hr)
HI
down
stowed
0.75 mph
(1.2 km/hr)
LO
--
stowed
0.75 mph
(1.2 km/hr)
--
--
extended but
below mid-
elevation
creep
--
--
above mid-
elevation
NOTE: ENGINE THROTTLE, at the platform-
control box, must be set to HI for MAX. SPEED.