41
930373 Rev. B
40
930373 Rev. B
X I I .
M A I N T E N A N C E
2. 12" Drive Wheels:
a. Elevate and securely support chair so that wheel is off the ground. Release
all air from tire.
b. Remove plastic dome plug.
c. Remove lock nut and tab washer.
d. Remove wheel.
e. Repair or replace inner tube.
f. Install wheel on chair by replacing center tab washer and locknut.
Use a
torque setting of 35 ft.-lbs. to re-tighten nuts.
Install plastic
dome plug.
g. Inflate tire to proper pressure level (listed on tire sidewall).
G. MOTOR BRUSHES
Check the motor brushes every three (3) 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.
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 performance and extend wheelchair life.
Charge Batteries
Check tires for proper inflation level
Check batteries for proper electrolyte level (wet 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 Sunrise Supplier
CHECK...
✓
✓
✓
✓
✓
✓
✓
✓
✓
Quar
terly
Annually
Monthly
W
eekly
Daily
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
• 12" 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.
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; 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 fire to proper pressure level.
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 in 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 height
volume, and cause tire to burst.
