SECTION 4, Page 4 SJ-800 Series E Battery Powered
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Troubleshooting Information - Electrical System
26. Defective Sevcon.
-See Sevcon troubleshooting Sec. 5, Page 10.
4.1-2. All Controls Inoperative From Platform
1. Loose or broken wire #07 from Base Control Box to Emergency Stop Switch (S7) in Platform Control Box.
-Check continuity. Replace if defective.
2. Open or defective Platform Emergency Stop Switch (S7).
-Close switch. Replace if defective.
3. Loose or broken wire #07A from Platform Emergency Stop Switch (S7) to Key Switch (S8).
-Check continuity. Replace if defective.
4. Open or defective Key Switch (S8).
-Close switch. Replace if defective.
5. Loose or broken wire #08 from Key Switch (S8) to Lift/Off/Drive Switch (S9).
-Check continuity. Replace if defective.
6. Open or defective Lift/Off/Drive Switch (S9).
-Close switch. Replace if defective.
7. Open or defective Gate Limit Switch (LS1) or (LS2) (optional).
-Close gate. Check limit switch adjustment. Replace if defective.
8. Loose or broken wire #05, #05A or #07 on Gate Limit Switches (optional).
-Check continuity. Replace if defective.
4.1-3. Base Controls Inoperative
1. Open or defective Base Selector Platform/Base Switch (S5)(ANSI/SIA and CSA only).
-Select Base. Replace if defective.
2. Loose or broken wire #10E from Key Switch (S8) to Base Control Box.
-Check continuity. Replace if defective.
3. Defective Lift/Lower Switch (S6) at Base Controls.
-Check Switch. Replace if defective.
4. Open or defective Diode (D10E-1).
-Check Diode. Replace if defective.
5. Open Key Switch (S8).
-Select Base Controls.
4.1-4. Up Circuit Inoperative From Platform
1. Open or defective Lift/Off/Drive Switch (S9).
-Select Lift. Replace if defective.
2. Defective Fuse (F8).
-Replace fuse.
3. Open or defective Diode (D9C).
-Check diode. Replace if defective.
4. Defective Delayed Power Module.
-Check for 24 volts between wire #09 and #02. Replace if defective.
5. Open or defective Diode (D9C-1, D9-1 OR D9-2).
-Check diode. Replace if defective.
6. Defective Fuse (F5).
-Replace fuse.
7. Defective Contactor (C10B-1).
-Check contactor. Replace if defective.
8. Open or defective Diode (D14).
-Check diode. Replace if defective.