• A motor subassembly
• φ2.8x150mm black wire
• φ2.8x150mm red wire
• M4x16 Hexagon socket head cap screws
• M4x25 Hexagon socket head cap screws
• M4x12 Hexagon socket head cap screws
• 3mm Allen key

Reasons:
1. Motor doesn’t work

• 1x Lock ring
• 2x M4x16 Hexagon socket head cap screws
• 1x 3mm Allen key
• 2x4mm Shrink tube

Reasons:
Can’t lock the battery

• sp72101_3Dgasket_60_V1_170303
• 2XM4x16 Hexagon socket head cap screws
• 2XM4x25 Hexagon socket head cap screws
• 4XM4x12 Hexagon socket head cap screws
• 3mm Allen key

• A chuck
• 3x M5x20 Hexagon socket head cap screw(L)
• 3x M5 Screw pad
• 1x 4 mm Allen key

Reasons:
1. Chuck jaws are corroded or damaged
2. Chuck is not concentric and wobbles

• Gear Assembly kit
• A pair of Mechanical seals
• 2x M4x16 Hexagon socket head cap screws
• 2x M4x25 Hexagon socket head cap screws
• 4x M4x12 Hexagon socket head cap screws
• 1x 3mm Allen key

Reasons:
1. Axle doesn’t turn
2. Speed cannot be regulated
3. Axle leak
4. Too loud

• A Torque Regulator subassembly
• 2x M4x25 Hexagon socket head cap screws
• 1x 3mm Allen key

Reasons:
1. Leak
2. Torque cannot be regulated

• An Electric switch
• 1x φ8.0xφ0.6×20 Spring
• 2x M4x16 Hexagon socket head cap screws
• 2x M4x25 Hexagon socket head cap screws
• 2x M4x12 Hexagon socket head cap screws
• A sponge cushion
• 1x 3mm Allen key

Reasons:
1. Cannot switch directions
2. Speed cannot be regulated

• A speed trigger subassembly
• 2x M3x4 Hexagon socket button head screw
• 2x M4x16 Hexagon socket head cap screws
• 2x M4x25 Hexagon socket head cap screws
• 2x M4x12 Hexagon socket head cap screws
• 4xφ4×1.2 O ring
• 1x 2mm Allen key & 1x 3mm Allen key

Reasons:
1. Leak
2. Speed cannot be regulated

• A valve
• A valve cap
• 2xφ5xφ2.5 O rings

Reasons:
1. Valve cap leak
2. Fail to inflate