15-5
15. SERVICE THE ELECTRICAL SYSTEM
Sc2450 Operator's Manual
■ Use a Booster Battery
●NEVER attempt to jump-start a frozen battery. 
Warm it to 60°F (16°C).
●NEVER connect the negative (–) booster cable 
to the negative (–) terminal of the discharged 
battery. Connect to an appropriate grounding 
point other than the discharged battery.
(A) Booster battery
(B) Battery on a disabled vehicle
(C) Positive (+) post of booster battery
(D) Positive (+) post of battery on a disabled 
vehicle
(E) Negative (–) post of booster battery
(F) Other end of booster cable
1. Connect the positive (+) booster cable to the 
positive (+) post on the booster battery.
2. Connect the other end of positive (+) booster 
cable to the positive (+) post of the battery on the 
disabled vehicle.
3. Connect the negative (–) booster cable to the 
negative (–) post on the booster battery.
4. Connect the other end of negative (–) booster 
cable to the metal frame of the disabled vehicle.
5. Start the engine of the disabled vehicle, and run 
the engine for several minutes.
6. Carefully disconnect the booster cables by 
performing the booster cables connection 
procedure in the reverse order (disconnect the 
negative cable first, and then the positive cable).
!   WARNING!   WARNING
(D)
(B) (A)
(F)
(E) (C)
3013737