Invacare Storm 4 Series, Service Manual

Page: 40 / 102

Invacare® Storm⁴ Series
6.6.8 Replacing Motor Swing Arm
This chapter refers to Storm 4 , Storm 4 X-plore and Storm 4 Max.
CAUTION!
Risk of Crushing to Hands and Feet by Weight of Mobility Device
– Pay attention to hand and feet.
– Use proper lifting techniques.
CAUTION!
Risk of Uncontrolled Movement of Mobility Device
– Turn off power supply (ON/OFF key).
– Engage drive.
– Before raising mobility device, secure wheels by blocking them with wedges.
– Prevent the mobility device tipping by propping it up on a wooden block which is long and wide enough under
the battery case. If the wooden block is too short or too high, the mobility device can still tip.
• 5 mm Allen key
• 6 mm Allen key
• TX40 Torx key
• 13 mm wrench
• 19 mm wrench
• Flat screwdriver
• Oblong wooden blocks (at least 14 x 14 x 30 cm)
Removing Motor Swing Arm
1. Remove drive wheel. See 6.7.7 Replacing Drive Wheel
(5–Screw Installation), page 53 .
2. Remove motor-gearbox unit. See 6.6.1 Replacing
Motor-Gearbox Unit, page 27 , 6.6.4 Replacing
Motor-Gearbox Unit (Storm 4 X-plore), page 30 or
Replacing Drive Unit (Storm 4 Max) .
3. Loosen and remove nut (1).
4. Remove washer (9).
5. Remove bolt (6). Pay attention to washer (7) and spacer
(8).
6. Remove plastic cap (4).
7. Loosen and remove screw (3) including washer (2).
8. Remove motor swing arm (5) from axle.
Fig. 6-30
Installing Motor Swing Arm
1. Install parts in reverse order.
2. Test all functions.
6.6.9 Replacing Suspension Strut
Invacare always recommends replacing both suspension struts to make sure that mobility device works perfectly.
Standard Storm
4
: The springs of the wheel suspension can be chosen from three weight classes according to the
user’s weight. The different weight classes are marked by dots on springs.
1 dot 0 … 70 kg user weight
2 dots 71 … 110 kg user weight
3 dots 111 … 150 kg user weight
CAUTION!
Risk of crushing
Mobility device is very heavy. Risk of injury to hands and feet.
– Use proper lifting techniques.
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