Sunrise Medical G-424 instruction manual To Repair or Replace a Tire

X I I . M A I N T E N A N C E

1.Maintenance Schedule:

This varies for different types of batteries. Always follow the instructions supplied with your batteries.

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 lost.

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.

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 cables 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.

E. PNEUMATIC TIRES

1.Do not use this chair if any of the tires are under-inflated 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:

•7" pneumatic casters - 30 to 40 psi

•14" pneumatic drive wheels -

35 to 45 psi

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.

X I I . M A I N T E N A N C E

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. 8" Front Caster Wheels:

a. Release all air from 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. Install washers correctly.

h.Inflate tire to proper pressure level.

2.14" Drive Wheels:

a.Elevate and securely support chair so that wheel is off the ground. Release all air from tire (solid aluminum rim only).

b.Remove plastic dome plug.

c.Remove lock nut.

d.Remove washer.

e.Remove wheel from chair.

f.Make sure all air has been removed from tube.

g.Remove all bolts holding two halves of rim together (not applicable on solid aluminum rim), and remove tire and solid insert.

h.Repair or replace inner tube (replace rim strip if necessary).

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