Invacare Hydra C650PW User manual

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Invacare Australia Pty Ltd
ACN 074676378
1 Lenton Place
(PO Box 5002)
North Rocks NSW 2151
Ph: [phone]
Fax: [phone]
[email protected]
August 2004
Hydra
C650PW Folding Power Wheelchair

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WARNING !
DO NOT OPERATE THIS ELECTRIC WHEELCHAIR WITHOUT
FIRST READING AND UNDERSTANDING THIS MANUAL. IF YOU
ARE UNABLE TO UNDERSTAND THE WARNINGS AND
INSTRUCTIONS, CONTACT THE DISTRIBUTOR OR DEALER
WHERE YOUR ELECTRIC WHEELCHAIR PURCHASED BEFORE
ATTENPTING TO USE THIS EQUIPMENT OTHERWISE INJURY
OR DAMANGE MAY RESULT.
Chair User Classification
Model Max user
Weight Everyday Use Indoor Use Outdoor Use
C650PW Folding power wheel chair
100 KGS X X X
Back upholstery
Armrest
Controller
Batteries
Frame
Rear wheel set
Legrests
Casters & fork
Motor / gear box

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SPECIFICATION
No Item Specification
1 Seat Width 406 mm (16 in) / 457 mm (18 in)
2 Seat Depth 406 mm (16 in) / 457 mm(18 in)
3Seat Height front 513 mm (20 in) / rear 490 mm (19 in)
4 Back Rest
Back height (from seat to the top of
back upholstery)
8° bend
375 mm (14.5 in) ~ 475 mm (18.5 in ) height adjustable
5Rear drive Wheels Dia. 325 mm(12.5 in) pneumatic tyre
6Front Wheels Dia. 200mm (8 in) pneumatic tyre
7Anti-tip Wheels Dia. 40 mm (1.5 in) wheels
8 Brake & wheel locks Electro-magnetic brake, and
BR-A550 alloy wheel lock
9 Manual Freewheel Yes, Easily accessible without disassembly
10 Adjustable Back Rest 8 degree bend, height adjustable
11 Adjustable Armrest Height adjustable from 213 mm (8.5 in) ~ 378 mm (15 in)
12 Battery MK-MU-1 Gel Battery 12 volt / 31 amp, 2 pcs
13 Battery Charger Off board. BAT - GC0822. 8 Amp.
14 Controller Shark Dynamic Controller
15 Drive Train 250W.Rear wheel drive with two motors,
permanent magnet commutator 24V DC motors.
16 Weight Capacity 100kg (220 lbs)
17 Max Speed 6.5 km/h (4 MPH)
18 Ground clearance to Batteries 135 mm (5.3 in)
19 Ground clearance to Anti-tip
Wheels 35 mm (1.4 in)
20 Turning Radius 965 mm (38 in)
21 Climbing Angle 10°
22 Range 24 km (15 miles)
(Varies with passenger weight, temperature, condition of batteries, ground surface, type
of charger & battery etc. )
23 Overall Length 1150 mm (45 in)
24 Overall Width 570 mm (16 in)seat width ／620 mm (18 in)
seat width
25 Overall Height Height adjustable from 911 mm (36 in) ~ 986 mm (39 in)
(from underground to push handle)
26 Weight - base incl. controller,
motors, legrests w/o anti-tipper,
seat cushion, batteries.
33 kg (72.6 lbs)
27 Battery weight 11 kg (24 lb) each. 2 pcs.
28 Warranty
(see details at the end of this
owner’s manual)
5 years for main frame.
1 year for controller / gear motor / main components
except exhaustive and wear and tear parts.

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Table of Contents
 Forward
 Safety Instructions
 Unpacking and Assembly
 Special Features :
Freewheel levers
Armrest
Backrest
Seat
Legrest
Wheel lock
 Safe Driving Techniques
 Batteries
 Tyre Pressures
 Maintenance, Cleaning & Fault Finding
 Limited Warranty

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Forward
Thank you for your selection of this Invacare power wheelchair. This wheelchair is
manufactured from high quality 7000 series seamless aluminium tubing. The
advantage of using this high grade material is two fold, one, Invacare chairs
remain well within industry standards for strength and durability and two, Invacare
is able to build a high strength product at a minimum weight. Every component of
a Invacare chair is produced after extensive research and evaluation to ensure
durability, reliability and efficiency meet International Standards.
C650PW chair’s equipment: controllers and motor/gearbox combinations are
manufactured by industry leaders. Invacare Dealers throughout the nation can
assist you in maintaining your wheelchair to ensure it meets your satisfaction and
continues to offer you a well engineered health care product.
Safety Instructions
Safety is an important consideration when using a wheelchair. It is important that
you read and understand all the operating and safety instructions discussed in this
manual. Ensure that your power wheelchair is correctly fitted and adjusted by your
selling Dealer or by your attending therapist.
Be sure to engage the wheel locks before entering or leaving the chair. The wheel
locks are designed to prevent movement of the chair. It is preferable to ensure
that the front castors are in the forward position before transferring. With the
castors in the forward position the wheel base of the chair is increased therefore
offering more stability.
DO NOT move forward in the seat whilst leaning forward out of the chair. If an
object is to be picked up from the floor wheel or drive past it, then reverse so the
front castors are in the forward position, as the chair will then have it’s greatest
stability in this position.
To maintain lateral stability do not reach further than the length of your arm.
DO NOT lean out of the chair as this could cause instability.
When transferring DO NOT stand on the foot plates. Depending on the style of
foot plate either swing them away or fold them up before transferring.
When approaching a ramp be sure of your own ability and your limitations in terms
of strength and endurance. You and your carer should first consult a qualified
specialist as to the correct techniques for ramp negotiation.

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Before attempting a ramp the following basic safety rules should be
considered：
1. Surface of the ramp: Is it too slippery ?
2. Degree of incline: Is it too steep to attempt alone ?
3. Length of ramp: Is it too long for your endurance ?
4. Obstacles: Are there any obstacles on the ramp that would
necessitate an attendants assistance ?
Assistance is always recommended when going up or down steep
inclines.
In order to prevent loss of steering control, or the possibility of tipping over back-
wards, an attendant is recommended when going up inclines greater than 10% (30
cm elevation on a 300 cm ramp).
If it becomes necessary to stop when going up an incline, special care must be
taken to avoid abrupt or sudden forward movement when you resume propelling
the chair so as to avoid forces which could tip the chair backwards.
Always keep the chair under control when going down a ramp or incline. Speed
should be controlled at all times.
When a chair is being attended by a carer and a kerb is encountered care should
be taken to prevent the user being thrown forward ：
1. Go down the kerb rear wheels first, making sure that the user is square to
the kerb so that the rear wheels go down together.
2. Go up a kerb frontward with both front wheels up together.
3. Avoid going up multiple steps.
4. Avoid using escalators. Use the elevator.
NOTE : As with all adjustable wheelchairs, operation at the extremes
of adjustment may affect handling and performance.

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Unpacking & Assembly
Unpacking
After removal your C650PW power chair from the carton please check that you
have been supplied with the following main parts as standard specification.
1. The main frame with motors /gearboxes front castors attached
2. Foot rigging ：with swing away legrests
3. Rear drive wheels ：12 1/2” x 2 1/4” rear wheel with pneumatic tyres
4. Batteries boxes ：two pieces, for 31 AH batteries use one box for
a battery
5. Batteries ：Rechargeable sealed lead-acid battery, 12V 31AH and/or
smaller.
6. Battery Tray ：Steel basket
7. Battery Charger: Off board.
8. Controller ：Shark Dynamic Controller
9. Motors: 24V DC permanent magnet commutator motors
Assembly
Please assemble the main parts mentioned as per the following procedure and
check the assembly for normal operation.
1. Mount the swing away legrests as shown in Fig 8.
2. Drive wheels, motor / gearbox assemblies are pre-installed as shows in
Fig 12.
Fig 12
Fig 8

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General Operation
1. Ensure the cushion is not on the chair. Hold the two armrests with your
hands as Fig 13 shows.
2. Extend the armrests outwards as Fig 14 shows.
3. Push down on the seat rails to ensure the seat opens fully and locks into
the receivers on the wheelchair side frames as Fig 15 shows.
4. Swing the legrests around to the front of the chair and ensure that they lock
into place.
Fig 13 Fig 14 Fig 15
Fig 16
To fold the wheelchair for storage or transportation
1. From the rear, release the battery box restraining strap. Unplug the rear battery box
and remove (red plugs).Unplug the front battery box from the main controller and remove
(see page 21 for more details).
2. Fold up the footplates and unlock the levers that position the legrests. Swing the
footplates and legrestsaway. Either leave the footplates in this position or remove them
completely by lifting each legrest vertically to clear the pivot bush as Fig 8 shows.
3. Take hold of the centre of the seat upholstery, one hand at the front and the other at
the rear. Pull up the seat upholstery vertically as Fig 16 shows.

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After following all the steps in General Operation proceed with the following.
1. Insert the battery box with the external power connection towards the front
of the chair.
2. There are two batteries. Attach the wiring loom to each battery making sure
that the correct polarity is observed. Correct wiring is illustrated by a
placard, fixed in the battery box lid. Lift each battery with the lifting harness
attached into position, connect the power cables to the appropriate
plugs and ensure that the power cables are clear of obstacles when
replacing the battery box lid. Tighten the battery box securing strap.
3. Slide the power control module into the mounting bracket under the armrest
and secure it into position. Your control module can be mounted either on
the left or right hand side of the chair. Should you wish to change the
mounting of the power module, your selling Dealer can assist as Fig 23
shows.
4. Ensure that all the power connections are correctly fitted.
Fig 23
Foldable frame, various quick
Release construction.

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Special Features
Freewheel levers
For your convenience, C650PW is equipped with two freewheel levers, see Fig
18 & 19. These levers allow you to disengage the drive motors and maneuver
the chair manually.
WARNING! DO NOT use you C650PW while the drive motors are disengaged
unless you are in the presence of an attendant! DO NOT disengage the drive
motors when your C650PW on an incline. The chair could roll down on its own,
causing injury !
To engage or disengage the freewheel feature:
1. Turn the freewheel levers outward to disengage the drive motors.
see Fig 18.
Fig 18 Driver disengaged Fig 19 Drive engaged
2. Turn the free wheel levers inward, to engage the drive motors, see Fig 19.
NOTE : It is important to remember that when your C650PW is in freewheel
mode, the braking system is disengaged.
Armrest
The height adjustable T-type armrest is provided as standard equipment on
C650PW power chairs, see Fig 3.
Fig 3
High adjustable armrest with
controller, various
ad
j
ustment function