X I I . M A I N T E N A N C E
E.PNEUMATIC TIRES
1.Do not use this chair if any of the tires are under- or
2.Low pressure in a tire may cause the chair to veer to one side and result in loss of control.
3.An
4.Never use a gas station pump to inflate a tire. Such pumps provide air at height volume, and cause tire to burst.
1. Check for signs of wear and correct air pressure in pneumatic tires weekly.
2. For best performance, inflate tires to the same pressure level, as shown on the tire sidewall:
• 8" and 9" pneumatic casters - 30 to 40 psi
• 20" pneumatic drive wheels - 35 to 45 psi
3. Caution:
To prevent tire damage:
• Use a hand pump (or a
air pump) to inflatelow tires.
• volumeUse a tire gauge to check pressure.
F. TO REPAIR OR REPLACE A TIRE
Residual air pressure in tires can cause severe injury. Make sure you release all air in tire before attempting to service or repair tires.
1. a8". Releaseor 9" Casterall air fromWheels:tire.
b. Remove caster wheel from fork.
c. Make sure there is no residual air in tire before you remove bolts that hold the two rim halves together.
d. Remove four bolts from rim. Separate two halves of rim.
e. Repair or replace inner tube.
f. Reassemble the caster wheel; make sure the bearing spacer is in place and all four bolts are secure.
Note: Use a torque setting of 240 inch- pounds when tightening bolts.
g. Mount caster wheel onto fork. Replace washers correctly.
h. Inflate tire to proper pressure level.
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