Sunrise Medical Quickie S-646 SE User Manual

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930477 Rev. A

X I I . M a i n t e n a n c e

930477 Rev. A

2. 14" Drive Wheels:

a) Elevate and securely support chair so that wheel is off the ground.
b) Release all air from tire.
c) Remove the four lug nuts securing wheel to hub (this is necessary only if tech-

nician desires to remove entire wheel assembly– not required).

d) Remove all bolts holding two halves of rim together.
e) Repair or replace inner tube.
f) Reassemble wheel rim.

Use a torque setting of 180 lbs.-in. to re-tighten bolts.

g) Re-secure wheel to hub using four lug nuts.

Use a torque setting of 240 lbs.-in. to re-tighten lug nuts.

h) Inflate tire to proper pressure level (listed on tire sidewall).

It is recommended to operate chair for 10-15 hours and then re-verify installation
torque of lug nuts at 240 lbs.-in.

G. MOTOR BRUSHES
You should have your supplier check the motor brushes every four (4) months for wear.
The brushes should be clean and shiny. Replace worn or blackened brushes.

H. ORDERING PARTS
When you order parts, provide the following:

1. Model of chair
2. Serial number of chair
3. Left hand or right hand control
4. Part number, description and quantity of parts you need.
5. State reason for replacement.

I. MAINTENANCE CHART
You should check the items on this chart at the indicated intervals. If any of the items
are loose, worn, bent or distorted, immediately have them checked and/or repaired by
your authorized Sunrise supplier. Frequent maintenance and servicing will improve per-
formance, extend wheelchair life, and help prevent injuries.

Charge Batteries

Check tires for proper inflation level

Check batteries for proper electrolyte level (wet cell only)

Check plugs and connectors for proper connections

Check all moving parts for wear

Inspect all nuts, bolts and fasteners for looseness or wear

Inspect upholstery for wear

Remove and inspect motor brushes

Servicing by authorized Supplier

CHECK...

✓

Quar

terly

Annually

Monthly

eekly

Daily

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:
• 8" pneumatic casters - 30 to 40 psi
• 14" pneumatic drive wheels - 35 to 45 psi for

knubby tires and 25 psi for V-groove tires.

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. 8" 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; makesure the bear-

ing 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.