932208 Rev. A
X I . M a i n t e n a n c e
47
X I . M a i n t e n a n c e
932208 Rev. A
46
E. PNEUMATIC TIRES
1. Do not use this chair if any of the tires are under- or over-inflated.
2. Low pressure in a tire may cause the chair to veer to one side and result in
loss of control.
3. An over-inflated tire may burst.
4. Never use a gas station pump to inflate a tire. Such pumps provide air at
high volume, and may 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:
•14" pneumatic drive wheels–
35 to 45 psi (240 to 310 kpa)
3.
CAUTION–
To prevent tire damage:
•Use a hand pump (or a low volume air pump)
to inflate tires.
•Use 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. 6" Caster Wheels:
a. Remove caster wheel from fork using a 1/2" wrench.
b. Make sure there is no residual air in tire before you remove bolts that hold the
two rim halves together.
c. Remove four bolts from rim using a #3 phillips screwdriver. Separate two halves
of rim.
d. Repair or replace inner tube.
e. Reassemble the caster wheel; make sure the bearing spacer is in place and all
four bolts are tightened to a torque of 60 in.-lbs. (6.8 N.m).
f. Mount caster wheel onto fork. Install washers correctly tighten bolt to 240 in.-
lbs. (27 N.m).
D. BATTERY MAINTENANCE
1. To prevent an acid spill, always keep batteries upright (wet cell batteries).
2. Never smoke or hold an open flame near batteries.
3. Always wear rubber gloves and safety glasses when you handle batteries.
1. Maintenance Schedule:
This varies for different types of batteries. Always follow the instructions supplied with
your batteries.
Q-NOTE–
Always wear rubber gloves and safety glasses when you handle or service
batteries.
2. Adding Water: (Wet Cells Only)
• Wet-type lead acid batteries need periodic replacement of water due to evaporation.
Q-NOTE–
Use distilled water only.
• Check the battery fluid level about once a week. When you remove the stoppers
(on top of the battery) there should be one-eighth to one-quarter of an inch of
fluid above the internal plates. Do not overfill.
3. Corrosion:
Check battery terminals often for corrosion.
a. If corrosion is present, use a wire brush to clean the terminals.
Q-NOTE–
Always wear safety glasses and rubber gloves.
b. Use baking soda to neutralize acid.
c. Use petroleum jelly to re-grease the terminals after connecting cable to battery.
(Completely cover the terminal nut and bolt, cable clip and any exposed cable
with jelly).
4. For Answers To Questions: Contact your supplier.
