Checking Tire Pressure

TCAL43703-UN-26MAR13

Explosive separation of tire and rim parts is possible when they are serviced incorrectly:

• Do not attempt to mount a tire without the proper equipment and experience to perform the job.
• Do not inflate the tires above the recommended pressure.
• Do not weld or heat a wheel and tire assembly. Heat can cause an increase in air pressure resulting in an explosion. Welding can structurally weaken or deform the wheel.
• Do not stand in front or over the tire assembly when inflating. Use a clip-on chuck and extension hose long enough to allow you to stand to one side.

Replace drive tires with less than 3/32 in. of any tread groove left.

Always keep the correct tire pressure in the drive tires.

Higher pressures will cause the tires to have less traction, creating slower speeds and giving a harder ride.

Front casters are equipped with non-pneumatic tires and do not require any air, but should still be checked for wear and be replaced when excessively worn.

1. Check tires for damage.

2. Check tire pressure with an accurate gauge.

3. Add air, if necessary.

   Tire Size	Pressure
   Front: 11 x 4 - 5	N/A
   Rear (636M): 18 x 8.50 - 10	124-152 kPa (18-22 psi)
   Rear (648M) (652M): 18 x 10.50 - 10	124-152 kPa (18-22 psi)