Description

The supplied bolts are the correct length for the installation of a 13500lb WINCHMAX winch onto a 5-7mm plate. Other thicknesses may require bolts of different lengths. The required criteria are that the bolts are at least 8.8 grade high tensile, the thread length should be sufficiently long to fully engage the square nut but must not protrude to the extent that the bolt contacts the top of the nut housing in the winch frame.

Please read the mounting bolt usage guide under the ‘specifications’ tab.

The 13500 winch mounting bolt set comprises of:

4 x M10x30 8.8 grade hex bolts
4 x M10 square nuts (15.8mm x15.8mm x 8.3mm)
4 x M10 flat washers (2.0mm thick)
4 x M10 spring washers (2.8mm thick)
2 x M12x25 8.8 grade hex bolts
2 x M12 8.8 grade hex nuts
2 x M12 flat washers (2.0mm thick)
2 x M12 spring washers (3.3mm thick)

• Install a suitable mounting bumper or mounting plate in the required position. The winch must be mounted with the direction of pull perpendicular to the mounting bolt fixings. The plate should be fabricated from minimum 6mm steel.
• Attach fairlead (roller type for wire rope or aluminium hawse for synthetic rope) to the mounting plate using two hex nuts (9) & bolts (1) with flat (7) and spring (8) washers.
• Insert the four square nuts (2) into the pockets at the base of the winch frame.
• Thread the four high tensile bolts (5) with flat (3) and spring (4) washers up through the mounting plate and into the square nuts in the winch. Tighten the mounting bolts to a torque setting of 60Nm.
• The supplied bolts are the correct length for installation on a 5-7mm plate. Other thickness’s may require bolts of a different length. The required criteria are that the bolts are at least 8.8 grade high tensile, the thread length should be sufficiently long to fully engage the square nut but must not protrude to the extent that the bolt contacts the top of the nut housing in the winch frame.

• The mounting bolt must only be used with the correct square nut designed to seat into the nut pockets formed in each corner of the motor and gearbox base. Never use standard hexagonal type nuts.
• When selecting a bolt length the thread must be long enough to pass through the mounting material and fully fill the thread of the square nut without contacting the top of the mounting bolt pocket.
• The supplied flat washer and split lock washer should always be used.
• The minimum mounting bolt thread length = the thickness of the mounting material plus 24mm The maximum mounting bolt thread length = the thickness of the mounting material plus 29.5mm
• If you need to increase the clearance in the nut pocket, addition washers can be used but we do not recommend an increment of more than 4mm.
• Failing to correctly mount your winch could result in a catastrophic structural failure to the winch and serious consequential damage/injury.