Replacing The Pc Board - Invacare HMV Zoom 300 Service Manual

SECTION 8—TILLER

Replacing the PC Board

NOTE: For this procedure, refer to FIGURE 8.11.
1. Disconnect the RED and BLACK controller connector from the RED and BLACK
battery connector. Refer to FIGURE 12.2 on page 87 for the Zoom 300 and
FIGURE 12.3 on page 89 for the Zoom 400.
2. Loosen the set screw (not shown) that secures the speed control knob and remove the
knob. Refer to Detail "A" of FIGURE 8.11.
NOTE: The set screw for the speed control knob can be reached through the access hole in the back
of the speed control knob.
3. Remove the upper tiller shroud. Refer to Removing/Installing the Upper Tiller Shroud
on page 44.
4. Disconnect the following from the PC board (Detail "B" of FIGURE 8.11):
A. Ignition switch
B. Horn
C. Throttle
D. Controller
E. Headlight (Zoom 400 Only)
F. Headlight Switch (Zoom 400 Only)
5. Remove the six (6) locknuts that secure the PC board to the upper tiller shroud. Refer
to Detail "C" of FIGURE 8.11.
6. Note the orientation of the PC board for proper installation of the new one.
7. Remove the PC board from the upper tiller shroud and discard.
8. Install new PC board in the position noted in STEP 6.
9. Secure the new PC board to the upper tiller shroud with the existing six (6) mounting
screws. Refer to Detail "C" of FIGURE 8.11.
10. Connect the following to the PC board (Detail "B" of FIGURE 8.11):
A. Ignition switch
B. Horn
C. Throttle
D. Controller
E. Headlight (Zoom 400 Only)
F. Headlight Switch (Zoom 400 Only)
11. Install the upper tiller shroud. Refer to Removing/Installing the Upper Tiller Shroud
on page 44.
12. Align the flat side of the stem with the hash mark on the speed control knob. Refer to
Detail "A" of FIGURE 8.11.
13. Tighten the set screw inside the speed control knob (not shown) to the stem.
Zoom 300 and Zoom 400
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Part No 1122167