Step 1: Outline Basic Shapes
Bagger's Body: Draw a large rectangular shape leaning diagonally for the bagger's main body.
Cab: On top of the body, near the left side, draw a smaller rectangle for the driver's cab.
Arm: Attach a long, slender rectangle shape on the right side of the body for the arm of the bagger.

Step 2: Add Details to the Parts
Treads: Below the bagger's body, add two thin elongated rectangles parallel to each other for the treads.
Shovel: At the end of the arm, draw a curved shape to represent the shovel.
Window: Draw a small rectangle inside the cab for a window.

Step 3: Refine the Bagger Shape
Additional Arm Details: Add smaller rectangular sections within the arm to show mechanical parts.
Shovel Teeth: Draw small triangular teeth on the bottom edge of the shovel.
Tracks Texture: Add short vertical lines along the treads to give them texture.

Step 4: Add Shading and Depth
Body and Arm Shading: Lightly shade one side of the bagger’s body and arm to give them three-dimensional form.
Shovel and Treads Shading: Add shading under the shovel and around the edges of the treads for more depth.

Step 5: Final Touches
Highlights: Add small highlight lines on the window and edges to make them stand out.
Fine Details: Add extra lines to create a more mechanical look on the arm and body of the bagger.
And there you have it—a completed drawing of a bagger! Let me know if you’d like any further assistance on any specific step.