6-8. TURNTABLE/BEARING REPLACEMENT (CONT).
CARC paint contains isocyanate (HDI) which is highly irritating to skin and respiratory
system. High concentrations of HDI can produce symptoms of itching and reddening of
skin, a burning sensation in throat and nose and watering of the eyes. In extreme
concentrations, HDI can cause cough, shortness of breath, pain during respiration,
increased sputum production and chest tightness. The following precautions must be
taken whenever using CARC paint:
NEVER weld or cut CARC-coated materials.
Unsafe welding practices can cause serious injury from fire, explosions, or harmful agents.
Allow only authorized personnel to weld or cut metals and follow safety precautions in
TC 9-237. Protective clothing and goggles must be worn; adjustable protective equipment
used and suitable fire extinguisher kit near by; and requirements of TC 9-237 strictly followed
or serious injury or death to personnel could result.
If a new turntable is to be installed new plates will need to be welded to new turntable.
If a new bearing is to be installed new plates will have to be installed on trailer and
Inside edge of retainer plates must be 4 1/2 in. (11.43 cm) from the center of the first
mounting hole from the centerline of turntable (both front and rear). The rounded edge
of the retainer plates must be tight against the turntable bearing.
All weld beads are 3/16 in. (4.82 mm) thick. Angled sides of plates receive welds 1/2 in.
(12.7 mm) long and 2 in. (50.8 mm) apart (measured from center of weld). Back sides of
plates receive welds 1/2 in. (12.7 mm) long and 1 3/4 in. (43.18 mm) apart (measured from
center of weld).
Refer to TC 9-237 and weld four retainer plates (14) to turntable.