Adjusting Forks - Invacare Pronto M41 Series Service Manual

Invacare® Pronto™ M41 Series
Removing Forks and/or Castor Assemblies
1. Remove castor (7) from fork if necessary, refer to 6.9.7
Replacing Castor Wheel on Double-Sided Fork, page 33.
2. Remove head tube cap (1).
3. Remove locknut (2), washer (3), and spacer (5) securing
the fork (6) to headtube (4).
Installing Forks and/or Castor Assemblies
1. Insert spacer (5) and threaded post of fork (6) into
headtube (4).
Check bearing assemblies. Replace if necessary.
2. Slide fork (6) completely into headtube (4).
3. Secure fork (6) to headtube (4) with locknut (2) and
washer (3). Securely tighten.
Improper positioning of washer will prohibit
the free movement of the forks. Check correct
position of washer.
4. Install castor (7) onto fork if removed, refer to 6.9.7
Replacing Castor Wheel on Double-Sided Fork, page 33.
5. Replace headtube cap (1).

6.8.5 Adjusting Forks

Tools:
• Ratchet with 15/16 inch socket
1. Remove headtube cap (1).
2. To properly tighten castor assembly (7) and guard
against flutter, perform following check:
Two people are recommended to perform steps
3 to 6 - one person to tip wheelchair back and
one person to inspect/adjust castor assembly.
3. Tip back wheelchair.
4. Pivot both castor assemblies (7) to top of their arc
simultaneously.
5. Let castors drop to bottom of arc (castors should swing
once to one side, then IMMEDIATELY rest in straight
downward position).
6. Adjust locknut (2) so that castor assemblies are not
too loose but can still rotate freely.
7. Test wheelchair for maneuverability.
8. Readjust locknut (2) if necessary, and repeat steps 3 to
6 until correct. Test wheelchair for maneuverability.
9. Replace headtube cap (1).
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Fig. 6-8
Fig. 6-9
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