Scotts S1642, S1742, S2046 Operator's Manual page 60

IF
Grass Tips Are Jagged And Turn Grayish Brown
After Mowing
Mower Stops When Shift Lever Is Moved Rearward
and Mower Is Engaged (Hydrostatic)
Mower Stops When Gear Shift Lever Is Moved To
The R (REVERSE) Position and Mower Is Engaged
(Gear)
Electrical
IF
Headlight not working
Battery will not charge
TROUBLESHOOTING
CHECK
Dull mower blades.
Bent blades.
Front-to-rear blade adjustment not set properly.
Normal condition. (See Using Reverse Implement Option in the
OPERATING section.)
Normal condition. (See Using Reverse Implement Option in the
OPERATING section.)
CHECK
Bulb(s) burned out.
Loose or damaged wiring.
Blown fuse.
Bad battery cell(s).
Poor cable connections.
Faulty regulator/rectifier.
Troubleshooting - 56