TM 5-2420-222-20-3 (1) (2) (3) (4) (5) (6) Maintenance Level Group Maintenance UNIT DS GS DEPOT Tools and Number Component/Assembly Function C O F H D Equipment Remarks 74 CRANES, SHOVELS, AND EARTHMOVING EQUIPMENT COMPONENTS 7412 Backhoe Attachments Backhoe Bucket Adjust 1.0 1-3 Repair 2.0 1-3,6,7 Dipperstick Assembly Replace 3.0 3,15 Repair 1.2 3,15 Dipperstick Hose Guards Replace 0.2 3 Backhoe Boom Assembly Service 0.5 Replace 6.0 3,15 Repair 2.2 3,15 Swing Frame Replace 2.5 3,15 Repair 1.0 3,15 Main Frame Replace 9.3 3,15 Repair 1.0 3,15 7437 Loader Bucket Assembly or Forklift Loader Lift Arms Service 0.2 Replace 2.5 3,15 Repair 1.2 3,15 Bucket Service 0.2 Replace 2.0 1-3 Repair 2.2 1-3,6,7 Side Frames Replace 6.0 3,15 Repair 2.0 3,15 Bucket Level Indicator Adjust 0.5 3 Replace 1.0 3 Bucket Linkage Repair 1.5 3 Change 1  B-21