Invacare Articulating/Elevating Legrest Manual de usuario

The Ratchet Replacement Kit consists of the following:

DESCRIPTION QUANTITY

Ratchet Body 2

Ratchet Bar 2

Ratchet Handle 2

Nylon Washer 2

Acorn Nut 2

Cam 2

Spring 2

Snap Ring 2

Spacer 2

Domed Push Cap 2

SAVE THESE INSTRUCTIONS

NOTE: Check ALL parts for shipping damage. In case of

shipping damage, DO NOT use. Contact Carrier/Dealer

for further instruction.

SAFETY SUMMARY

The following recommendations are made for safe

installation and adjustment of the Ratchet Replace-

ment Articulating / Elevating Legrest:

GENERAL WARNING

DO NOT install or use this kit without first read-

ing and understanding this instruction sheet.

If you are unable to understand the Warn-

ings, Cautions or Instructions, contact a

healthcare professional, dealer or technical

personnel before attempting to install this kit

- otherwise, injury or damage may occur.

DO NOT step or stand on footrests; it could

cause the chair to tip over resulting in injury.

INSTALLATION WARNING

After making adjustments and BEFORE use,

make sure all attaching hardware is securely

tightened.

Ratchet Replacement - Articulating / Elevating Legrest

Assembly, Installation and Operating Instructions

REMOVING EXISTING RATCHET

ASSEMBLY (FIGURE 1)

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.

2. Perform one (1) of the following:

If the ratchet handle is secured with a Roll Pin:

A. Use a hammer and a punch to remove the roll pin

that secures the ratchet handle to the ratchet as-

sembly as shown in FIGURE 1, DETAIL “A”.

B. Adjust the legrest assembly until the ratchet as-

sembly including handle can be removed from

the upper support tube of legrest assembly.

NOTE: When removing the ratchet assembly and handle

on the articulating legrest, open the legrest assembly until

you clear the drive link and link bar.

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.

C. Remove ratchet body and ratchet handle from

upper support tube as shown in FIGURE 1,

DETAIL “A”.

D. Discard the existing ratchet parts.

If the ratchet handle is secured with a snap ring:

A. Remove the snap ring from the end of the ratchet

handle using snap ring tool.

B. If equipped, remove the domed push cap that se-

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

support tube.

E. Discard the existing ratchet parts.

Have the following tools available:

Hammer

Punch

Snap Ring Tool

FIGURE 1 - REMOVING EXISTING RATCHET ASSEMBLY

Legrest

Support Tube

Ratchet

Handle

Upper

Support

Tube

Ratchet

Handle

Upper Support

Tube Legrest

Support Tube

Drive Link

Link Bar

ARTICULATING LEGREST

Roll Pin

Ratchet

Handle

Upper

Support

Tube

Ratchet

Body From Support

Tube Mounting of

Legrest Assembly

Discard Discard

RATCHET KIT WITH ROLL PIN:

ELEVATING LEGREST

DETAIL “A” - DISASSEMBLING EXISTING RATCHET KIT WITH ROLL PIN

Elevating

Support Tube

Upper

Support Tube

Ratchet

Handle

Domed

Push Cap

Snap

Ring

Ratchet

Bar

RATCHET KIT WITH SNAP RING:

ELEVATING LEGREST

ARTICULATING LEGREST

Elevating

Support Tube

Upper

Support TubeRatchet

Handle

Snap

Ring

Ratchet

Bar

Drive Link

Link Bar

NOTE: Domed push cap not used on articulating legrest.

FIGURE 2 - INSTALLING NEW RATCHET KIT -

ELEVATING LEGRESTS

DETAIL “A” - CAM POSITION

NOTE: Pointed end of cam

faces acorn nut on ratchet bar.

Cam

Ratchet Bar

DETAIL “B” - CROSS SECTION

Ratchet

Body

Ratchet

Handle

Spring Clip

Mtg. Holes

Spring Clips

Spring

Snap Ring

Nylon

Washer

Spacer

Acorn Nut

Domed

Push

Cap

Legrest Support

Tube

Ratchet

Bar

Cam

Ratchet

Handle

Ratchet Body

Spring

Nylon

Washer

Domed

Push Cap

Snap Ring

Acorn

Nut

INSTALLING NEW RATCHET KIT

Elevating Legrests (Figure 2)

1. Install ratchet handle through support tube.

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.

4. Insert the cam into the ratchet body against the spring

ensuring that the teeth on the cam are facing up as

shown in DETAIL “A”, FIGURE 2.

NOTE: The pointed end of the cam should face the rear

of the wheelchair.

5. Line-up the holes in the spring with holes in the cam

and the ratchet body.

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.

6. While holding the cam in place, install the ratchet

handle through the ratchet body, spring, cam, spring

and ratchet body as shown in DETAIL “B”, FIGURE 2.

7. Using snap ring tool, install snap ring into groove on

end of ratchet handle to secure ratchet.

8. Install the short end of the ratchet bar into hole on

elevating support tube.

9. Perform one (1) of the following:

A. For ADULT WHEELCHAIR with Elevating

Legrests, install NO spacers on the ratchet bar.

B. For HEMI WHEELCHAIR with Elevating Legrests,

install one (1) spacer on the ratchet bar.

10. Open legrest as far as possible.

11. Pull down on ratchet handle and insert ratchet bar into

the ratchet body.

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.

14. Secure ratchet assembly by installing domed push

cap on short end of ratchet bar.

Articulating Legrests (Figure 3)

1. Install ratchet handle from outside of legrest through

upper legrest support tube.

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.

4. Insert the cam into the ratchet body against the spring

ensuring that the teeth on the cam are facing up as

shown in DETAIL “A”, FIGURE 3.

5. Line-up the holes in the spring with holes in the cam

and the ratchet body.

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.

6. While holding the cam in place, install the ratchet

handle through the ratchet body, spring, cam, spring

and ratchet body.

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. For ADULT WHEELCHAIR with Articulating

Legrests, install one (1) spacer on the ratchet bar.

B. For HEMI WHEELCHAIR with Articulating Legrests,

install two (2) spacers on the 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.

10. Open legrest as far as possible.

11. Remove top screw and locknut from upper legrest

support. Set aside for reassembly.

12. Remove upper legrest support from elevating sup-

port 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.

16. Secure ratchet bar with acorn nut.

NOTE: When reinstalling upper legrest support, close

legrest as far as possible and ensure that the ratchet body

is against the spacer on the ratchet bar.

17. Close legrest as far as possible.

18. Reinstall upper legrest support to lower legrest sup-

port ensuring that the gears mesh.

19. Reinstall screw and locknut to secure legrest sup-

port. Securely tighten.

DETAIL “A” - CAM POSITION

NOTE: Pointed end of cam

faces acorn nut on ratchet bar.

Cam

Ratchet Bar

Spring Clip

Mtg. Holes

Spacer

Acorn Nut

FIGURE 3 - INSTALLING NEW RATCHET KIT

ARTICULATING LEGREST

OUTSIDE

INSIDE

Ratchet

Handle

Upper Legrest

Support Tube

Snap Ring

Cam

Spring

Ratchet

Body

Washer

Elevating

Support Tube

Upper Legrest

Support Tube

Screw

Locknut

Ratchet Bar

Elevating

Support Tube

Ratchet

Body

Spacer

Acorn Nut

HEMI ARTICULATING

APPROX. 45°

Two (2)

Spacers

FIGURE 4 - ASSEMBLY OF THE ARTICULATING LEGREST

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.

ADULT ARTICULATING

APPROX. 30°

One (1)

Spacers

NOTES

Invacare Corporation www.invacare.com

U A Canada

One Invacare Way 5970 Chedworth Way Invacare and "Yes, you can" are trademarks of Invacare

lyria, Ohio USA Mississauga, Ontario Corporation.

800-333-6900 905-890-8838 Form No. 93-159 Part No. 1042798 Rev C (1) 9/00

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