TM    9-2320-279-20-3 Maintenance   Allocation   Chart   (Cont) 2001 2004 Inner  Boom Cylinders Boom Extensions  1 and 2 Cylinders Boom Extensions  3 and 4 Cylinders Extension  Back Pressure Valves Extension   No.  1 Extension  No. 2 and No.  3 Extension  No. 4 Boom Unit Beam Slewing Plate and Bearing Slewing Housing  and Pistons Three Point Bridge and Trunnion Overload Cell Crane Power  Distribution] Box Remote Control Remote Control Cable System Relief Valve Main Control Valve Overload Protection Valve Motor Proportional Control Power  Take-Off PTO Solenoid Replace Repair Replace Repair Replace Repair Replace Repair Replace Replace Replace Replace Replace Replace Replace Replace Replace Test Replace Repair Inspect Adjust Replace Repair Replace Repair Replace Replace Repair Test Adjust Replace Adjust Replace Repair Replace 0.1 0.1 0.1 * 2.0 0.6 2.0 1.0 6.0 0.5 0.6 2.0 2.5 2.0 2.0 2.5 1.5 2.5 2.5 2.0 1.0 1.0 1.0 0.5 0.7 2.0 * 1.5 0.5 2.5 2.0 2.5 6.0 * 4.0 0.3 3, 5 3, 5 3, 5 3, 5 3, 5 3, 5 3, 5 3, 5 3, 5 3, 5 3, 5 3, 5 3,  5,  106,  107 5, 7 3, 5 3,  5,  106 3, 5 3,  5,  130 3, 5 5 2, 6 5 6 2, 6 3, 5 3,  5,  108,  110 3, 5 3, 5 5 3, 5 5 2, 6 3, 5 6 B A B B-18