SAFETY SIGNS 16. Inside Battery Box (Center) Sign indicates an explosion hazard. Keep fire and open flames away from this area. SS263G9-12181 ZW180 ZW-0021 ZW220, 250, 310 ZW-0008 Sign indicates an electrical hazard from handling the cable. Read man- ual for safe and proper handling. 17. Inside Battery Box (Inward) SS263G9-12171 ZW180 ZW-0021 ZW-0008 ZW220, 250, 310 S-38