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Invacare 1143206 Mobility Aid User Manual

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SECTION 11—SHROUD AND WHEELS

Pronto® M41 with SureStep® 52 Part No. 1143206

Removing

1. Removethemountingscrew,twospacersandlocknutthatsecuretheexistingcaster

tothefork.

2. Removetheexistingcasterfromthefork.

Installing

1. Positionthenew/existingcasterinto

thefork.

2. Reinstallthemountingscrew,two

spacersandlocknut.Securelytighten.

3. Torquelocknutto10ft‐lbs(120in‐lbs).

4. Loosenthelocknut1/8ofaturn.

5. Movethecastersidetoside.

NOTE:Ifthecastermovessidetoside,tighten

thelocknutslightly.RepeatSTEP4untilthere

isnosidetosidemovementofthecaster.

FIGURE 11.3 Removing/Installing Casters

Adjusting Forks

NOTE:Forthisprocedure,refertoFIGURE 11.4.

1. Removetheheadtubecap.

2. Toproperlytightencasterassemblyandguardagainstflutter,performthefollowing

check:

A. Tipbackthewheelchair.

B. Pivotbothforksandcasterstotopoftheirarcsimultaneously.

C. Letcastersdroptobottomofarc(castersshouldswingoncetoone‐side,

then

immediatelyrestinastraightdownwardposition).

D. Adjustlocknutaccordingto

freedomofcasterswing.

E. Testwheelchairfor

maneuverability.

F. Readjustlocknutifnecessary,and

repeatSTEPS2‐3untilcorrect.

G. Replaceheadtubecap.

NOTE:Componentsexplodedforclarity.There

isnoneedtoremovetheforkfromthebase

frame.

FIGURE 11.4 Adjusting Forks

Fork

Mounting

Screw

Locknut

Caster

Spacer

Spacer

Headtube

Fork

Locknut

Washer

Headtube Cap

Caster

Spacer

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