Firman WH03662OF — Battery Replacement

Repair & overhaul

For the Firman WH03662OF, from the Firman operator's manual.

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Procedure

1. Remove the spark plug wire from spark plug
2. Remove nut and bolt from negative and positive posts
3. Loosen and remove screw on battery holding bracket
4. Remove battery and recycle/dispose properly
5. Install new 12V sealed lead acid 7.5AH battery
6. Connect red positive battery cable first
7. Connect black negative battery cable second
8. Cover posts with boots
9. Install spark plug wire onto spark plug

Source: Firman operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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