Replacing Shear Bolts

MXT007239
MXT007239-UN-15MAY13

A - Bolt, Auger Shaft, M6 x 45

B - Bolt, Impeller, M6 x 45


IMPORTANT: Avoid damage! Replacement shear bolts must be same as original shear bolts on attachment:

  • Softer bolts can shear too easily.
  • Harder bolts may not shear and attachment can be damaged.

  1. Lower snowblower to ground.

  2. Stop machine.

  3. Lock park brake.

  4. Remove key.

  5. Inspect to determine which shear bolt has broken. There are four shear bolts:

    1. One M6 x 45 bolt (A) and M6 nut on each auger shaft.

    2. Two M6 x 45 bolts (B) and M6 nuts securing the impeller to the auger drive shaft.

  6. Find and correct the cause for shearing.

  7. Line up auger and / or impeller properly. Install new shear bolts that are same size as original, M6 x 45 in impeller and M6 x 45 full thread in the auger.

TH84124,0000127-19-20130626