Ratchet Replacement - Articulating / Elevating Legrest
Assembly,Installation and Operating Instructions
REMOVING EXISTING RATCHET
SAVE THESE INSTRUCTIONS
ASSEMBLY (FIGURE 1)
NOTE: Check ALL parts for shipping damage. In case of
shipping damage, DO NOT use. Contact Carrier/Dealer
for further instruction.
NOTE: Note location and orientation of ratchet assembly
BEFORE removing for installation of NEW ratchet kit.
1. Determine how the ratchet handle is secured to the
legrest.
SAFETY SUMMARY
The following recommendations are made for safe
installation and adjustment of the Ratchet Replace-
ment Articulating / Elevating Legrest:
2. Perform one (1) of the following:
If the ratchet handle is secured with a Roll Pin:
A. Useahammerandapunchtoremovetherollpin
that secures the ratchet handle to the ratchet as-
sembly as shown in FIGURE 1, DETAIL “A”.
GENERAL WARNING
DO NOT insta ll or use this kit without first re a d-
ing a nd unde rsta nding this instruc tion she e t.
If you a re una ble to unde rsta nd the Wa rn-
ings, Ca utions or Instruc tions, c onta c t a
he a lthc a re profe ssiona l, de a le r or te c hnic a l
pe rsonne l be fore a tte mpting to insta ll this kit
- othe rwise , injury or da ma ge ma y oc c ur.
B. Adjust the legrest assembly until the ratchet as-
sembly including handle can be removed from
the upper support tube of legrest assembly.
NOTE:Whenremovingtheratchetassemblyandhandle
onthearticulatinglegrest, openthelegrestassemblyuntil
you clear the drive link and link bar.
DO NOT ste p or sta nd on footre sts; it c ould
c a use the c ha ir to tip ove r re sulting in injury.
NOTE: This procedure will eliminate disassembling the
upper support tube from the legrest support tube and in
the case of the articulating legrest the gears will not have
to be remeshed to obtain correct travel.
INSTALLATION WARNING
Afte r m a king a djustm e nts a nd BEFORE use ,
ma ke sure a ll a tta c hing ha rdwa re is se c ure ly
tig hte ne d .
C. Remove ratchet body and ratchet handle from
upper support tube as shown in FIGURE 1,
DETAIL “A”.
The Ratchet Replacement Kit consists of the following:
D. Discard the existing ratchet parts.
DESCRIPTION
QUANTITY
If the ratchet handle is secured with a snap ring:
Ratchet Body
Ratchet Bar
Ratchet Handle
Nylon Washer
Acorn Nut
Cam
Spring
Snap Ring
Spacer
Domed Push Cap
2
2
2
2
2
2
2
2
2
2
A. Removethesnapringfromtheendoftheratchet
handle using snap ring tool.
B. Ifequipped, removethedomedpushcapthatse-
cures the ratchet bar to the legrest support tube.
C. Adjust the legrest assembly until the ratchet as-
sembly including handle can be removed from
the upper support tube of the legrest assembly.
D. Removeratchetbodyandratchethandlefromupper
supporttube.
E. Discard the existing ratchet parts.
Have the following tools available:
Hammer
Punch
Snap Ring Tool
1
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INSTALLING NEW RATCHET KIT
Legrest Support
Tube
Domed
Push
Cap
Elevating Legrests (Figure 2)
Ratchet
Body
1. Install ratchet handle through support tube.
2. Install nylon washer onto end of ratchet handle.
Ratchet
Bar
Ratchet
Handle
3. Install spring into ratchet body. Snap the spring clips
intothespringclipmountingholesoftheratchetbody.
Acorn
Nut
4. Insertthecamintotheratchetbodyagainstthespring
ensuring that the teeth on the cam are facing up as
shown in DETAIL “A”, FIGURE 2.
Nylon
Washer
Snap Ring
Spring
Spring Clips
NOTE: The pointed end of the cam should face the rear
ofthewheelchair.
5. Line-up the holes in the spring with holes in the cam
and the ratchet body.
Cam
NOTE: The ratchet body should be on the INSIDE of the
legrest support tube with the spring clip mounting holes
facingtowardthefrontofthewheelchair.
DETAIL “A” - CAM POSITION
Spacer Ratchet Bar
6. While holding the cam in place, install the ratchet
handle through the ratchet body, spring, cam, spring
andratchetbodyasshowninDETAIL“B”, FIGURE2.
Cam
Acorn Nut
7. Using snap ring tool, install snap ring into groove on
end of ratchet handle to secure ratchet.
Spring Clip
Mtg. Holes
NOTE: Pointed end of cam
faces acorn nut on ratchet bar.
8. Install the short end of the ratchet bar into hole on
elevatingsupporttube.
DETAIL “B” - CROSS SECTION
9. Perform one (1) of the following:
A. For ADULT WHEELCHAIR with Elevating
Legrests, install NO spacers on the ratchet bar.
Ratchet
Handle
B. ForHEMIWHEELCHAIRwithElevatingLegrests,
install one (1) spacer on the ratchet bar.
Ratchet Body
Spring
10. Open legrest as far as possible.
Domed
Push Cap
11. Pulldownonratchethandleandinsertratchetbarinto
the ratchet body.
Snap Ring
Cam
Nylon
Washer
12. Work the ratchet bar into the ratchet body while clos-
ing the legrest at the same time.
13. Secure ratchet bar with the acorn nut.
FIGURE 2 - INSTALLING NEW RATCHET KIT -
ELEVATING LEGRESTS
14. Secure ratchet assembly by installing domed push
cap on short end of ratchet bar.
3
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17. Close legrest as far as possible.
Articulating Legrests (Figure 3)
18. Reinstall upper legrest support to lower legrest sup-
port ensuring that the gears mesh.
1. Install ratchet handle from outside of legrest through
upper legrest support tube.
19. Reinstall screw and locknut to secure legrest sup-
port. Securely tighten.
2. Install nylon washer onto end of ratchet handle.
3. Install spring into ratchet body. Snap the spring clips
into the spring clip mounting holes of the ratchet body
as shown in DETAIL “A”, FIGURE 3.
OUTSIDE
Upper Legrest
Support Tube
4. Insertthecamintotheratchetbodyagainstthespring
ensuring that the teeth on the cam are facing up as
shown in DETAIL “A”, FIGURE 3.
Ratchet
Handle
Ratchet
Body
5. Line-up the holes in the spring with holes in the cam
and the ratchet body.
Washer
NOTE: The ratchet body should be on the INSIDE of the
legrest support tube with the spring clip mounting holes
facing toward the front of the wheelchair and the pointed
end of the cam facing the rear of the wheelchair.
Snap Ring
Elevating
Support Tube
Cam
INSIDE
Spring
6. While holding the cam in place, install the ratchet
handle through the ratchet body, spring, cam, spring
and ratchet body.
DETAIL “A” - CAM POSITION
Spacer Ratchet Bar
7. Using snap ring tool, install snap ring into groove on
end of ratchet handle to secure ratchet.
8. Perform one (1) of the following:
A. ForADULTWHEELCHAIRwithArticulating
Legrests, installone(1)spacerontheratchetbar.
Cam
Acorn Nut
B. ForHEMIWHEELCHAIRwithArticulatingLegrests,
install two (2) spacers on the ratchet bar.
Spring Clip
Mtg. Holes
NOTE: Pointed end of cam
faces acorn nut on ratchet bar.
9. Insert short end of ratchet bar into hole on elevat-
ing support tube ensuring that the short end of the
ratchet bar is pointing toward the OUTSIDE of the
legrest.
Acorn Nut
Ratchet
Body
10. Open legrest as far as possible.
11. Remove top screw and locknut from upper legrest
support. Set aside for reassembly.
Ratchet Bar
12. Remove upper legrest support from elevating sup-
port tube.
Locknut
Spacer
Upper Legrest
Support Tube
14. Insert ratchet bar into ratchet body.
15. Pull down on ratchet handle while working ratchet
bar into ratchet body until the ratchet body is against
the spacer on the ratchet bar.
Screw
Elevating
Support Tube
16. Secure ratchet bar with acorn nut.
NOTE: When reinstalling upper legrest support, close
legrestasfaraspossibleandensurethattheratchetbody
is against the spacer on the ratchet bar.
FIGURE 3 - INSTALLING NEW RATCHET KIT
ARTICULATING LEGREST
4
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CORRECT ASSEMBLED POSITION
FOR COMPLETE TRAVEL OF
ARTICULATING LEGREST (FIGURE 4)
1. The ADULT, after it is mounted to the chair frame,
will be at about a 30° angle.
2. The HEMI, after it is mounted to the chair frame,
will be at about a 45° angle.
NOTE: Check legrest for full travel and locking capability
before use.
HEMI ARTICULATING
ADULT ARTICULATING
One (1)
Spacers
Two (2)
Spacers
APPROX. 30°
APPROX. 45°
FIGURE 4 - ASSEMBLY OF THE ARTICULATING LEGREST
5
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NOTES
6
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NOTES
7
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Invacare Corporation
USA
Canada
One InvacareWay
Elyria, Ohio USA
44036-2125
5970 ChedworthWay
Mississauga, Ontario
L5R 3T9, Canada
905-890-8838
Invacare and "Yes,you can" are trademarks of Invacare
Corporation.
© 2000 Invacare Corporation
800-333-6900
Form No. 93-159 Part No. 1042798 Rev C (1) 9/00
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