![](/globalassets/mediavalet/web-assets/pictures/expander/manuals/expander.png?mode=pad&width=600)
First Fit Installation
Instruction for Straight Pin, Multibolt
2.2
![](/globalassets/mediavalet/web-assets/pictures/expander/manuals/expander_manual_product_straight_pin_multibolt.png?mode=pad&width=600)
Follow the installation instructions to ensure that the Expander System is installed correctly and to prolong the pivot life.
Expander System pivot pin comes with a warranty against lug wear 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.
![](/globalassets/mediavalet/web-assets/pictures/expander/installation-instructions/multibolt/parts_multibolt.png?width=800)
1. Bolt 2. Washer 3. Sleeve 4. Axle (Pin)
Installation
![](/globalassets/mediavalet/web-assets/pictures/expander/installation-instructions/05_installation_grease.png?mode=pad&width=600)
Grease the sleeves and axle, preferably graphite grease.
![](/globalassets/mediavalet/web-assets/pictures/expander/installation-instructions/06_installation_note.png?mode=pad&width=600)
NOTE! If applicable: position greasing outlet 90 degrees to force direction to minimize stress concentration at outlet.
![](/globalassets/mediavalet/web-assets/pictures/expander/installation-instructions/multibolt/06_installation_straight_pin_multibolt.png?mode=pad&width=600)
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
![](/globalassets/mediavalet/web-assets/pictures/expander/installation-instructions/08_hex_bolts.png?mode=pad&width=800&heightratio=0.3333)
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 |
Final check
![](/globalassets/mediavalet/web-assets/pictures/expander/installation-instructions/multibolt/08_final_check_initial_torque_multibolt2.png?mode=pad&width=600)
After initial torque, grease the pivot (if applicable), move the machine through full range of motion several times and recheck the torque.
![](/globalassets/mediavalet/web-assets/pictures/expander/installation-instructions/13_final_check_min_distance.png?mode=pad&width=600)
Ensure that there is a minimum distance of 0,5 mm (0.02”) between the washer and the lug. NOTE! For flange design, there should be a minimum distance of 6 mm for easy removal of the sleeve. ATTENTION! If the washer is in contact with the lug, contact your dealer or Expander System.