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First Fit Installation

Instruction for Straight Pin, Multibolt

1.0

Follow the installation instructions to ensure that the Expander System is installed correctly and to prolong the pivot life.


Expander System will perform as expected from the moment it is installed until the end of its intended lifecycle. Each Expander System comes with a function warranty of 10 years / 10 000 hours in operation (whichever comes first) from the date of purchase. 

 

This instruction is valid for lug holes with the following maximum tolerances:
- Hole tolerances: H9
- Lug hole inner surface roughness: Ra 3.2
- Misalignment of lugs: Outer lug distance/500
- There should be no bushings in the lug ears


If your lugs are not within these specifications, please consult your dealer or Expander System for installation recommendation.

1. Bolt  2. Washer  3. Sleeve  4. Axle (Pin)

 

Installation

1

Grease the sleeves and axle, preferably graphite grease.

NOTE! If applicable: position greasing outlet 90 degrees to force direction to minimize stress concentration at outlet.

 

2

lnsert the axle and position it in the bores. Install the sleeves, then the tension washers and fasteners. Cross-tighten the fasteners with recommended torque.

Torque recommendations

3

Hex Bolts

Torques M12-M24 ± 10%, M30... +30/-0%

  M12 M14 M16 M20 M24 M30 M36 M42
Nm 70 115 175 350 500 600 700 900
lb-ft 52 85 129 258 369 443 516 664

 

4

After initial torque move machine through full range of motion several times and recheck torque.

5

Ensure that there is a minimum distance of 0,5 mm (.02”) between the washer and the lug. ATTENTION! If the washer is in contact with the lug contact your dealer or Expander System.

 

More information about the Expander System warranty: https://www.nord-lock.com/lifetime-warranty