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Skyjack SJ12 E - Page 7

Skyjack SJ12 E
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7
SJ12 E, SJ16 E, SJ20 E
241914ACA
Section 4 – Troubleshooting Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
4.2 Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
42-1 All Controls Inoperative 64
42-2 No Lift or Steer Functions 65
42-3 No Lift from Base or Platform 66
42-4 No Lower from Base or Platform 66
42-5 No Lift from Base Controls 66
42-6 No Lower from Base Controls                                                     66
42-7 No Functions from Platform controls 67
42-8 No Lift/Lower from Platforms Controls 67
42-9 No Steer Left 67
42-10 No Steer Right 67
42-11 No Drive 68
4.3 Hydraulic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
43-1 All Hydraulic Controls Inoperative (No Lift or Steer functions) 69
43-2 No Lift Function 69
43-3 No Lower Function 69
43-4 No Steer Left and/or Right 69
Section 5 – Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
5.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
51-1 Safety and Workmanship 71
51-2 Diagnostic Switch 71
5.2 Platform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
52-1 Remove the Platform 72
52-2 Install the Platform 74
52-3 Replace the Load Cells                                                          76
52-4 Railing Maintenance and Repair 78
5.3 Mast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
53-1 Lubricate the Mast 79
53-2 Remove the Lift Cylinder 80
53-3 Install the Lift Cylinder 81
53-4 Remove the Mast and Lift Cylinder Together 82
53-5 Install the Mast and Lift Cylinder Together 84
53-6 Replace the Mast Wear Pads 87
5.4 Hydraulic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100
54-1 System Pressure Adjustment 100
54-2 Lift Pressure Adjustment 102
5.5 Tilt Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

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