Installation Instructions
Stepped Pin, Spanner Nut Secured
5.4
Following these instructions will ensure that the Expander System is installed correctly and the pivot life is prolonged.
Congratulations! You have purchased a custom engineered solution to the pivot wear problem on your machine. Contact your dealer or Expander before proceeding if you have any questions.
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.
The picture shows a female axle, but the principle is the same for other designs.
1 Bolt. 2 Washer. 3 Sleeve. 4 Axle (Pin). 5 Securing spanner nut. 6 Threaded washer.
Preparation
Usunąć wszelkie tuleje w celu wyeliminowania przyszłego zużycia się na styku miedzy tuleją, a
uchem do mocowania.
Naprawić wszelkie uszkodzenia strukturalne, np. pęknięcia lub zgięte uszy przed instalacją
Wygładzić nieregularności na powierzchniach otworów.
Różnica pomiędzy średnicą min. a max. w zużytych uszach musi mieścić się w granicach .06” (1.5 mm), aby tuleja była dobrze spasowana.
ATTENTION! If the worn lugs diameter at any point is 2 mm (.080”) or more over original lug diameter contact your dealer or Expander System. You will need oversized sleeves.
Installation
Nasmarować tuleję oraz oś
dostępnym smarem, najlepiej
grafitowym. NIE SMAROWAĆ
GWINTÓW.
UWAGA! Jeżeli można: końcówkę smarująca umieść pod kątem 90 stopni aby wymusić kierunek w celu zminimalizowania koncentracji naprężenia na końcówce.
The spacer is always positioned on the opposite side of the stepped part of the axle. If the pivot already has a spacer, leave it in its position. If the Expander System includes a spacer, place it between the inner sphere of the bearing and the lug ear, with the bevel facing the bearing.
Insert the axle. Install securing spanner nut and threaded washer on the side with small axle diameter. Position to achieve a gap between the threaded washer and the lug. Mount and tighten the fastener until the axial play is eliminated.
Install sleeve, washer and fastener on the side with large axle diameter. Tighten the fastener with recommended torque.
Remove securing spanner nut and threaded washer. Install sleeve. Reinstall securing spanner nut, threaded washer and fastener. Keep the securing spanner nut loose and tighten the fastener with recommended torque. Finally tighten the securing spanner nut against the lug.
Torque recommendations
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 |
Hex Nuts: Standard Height
Torques M12-M24 ± 10%, M30... +30/-0%
| M12 | M14 | M16 | M20 | M24 | M30 | M36 | M42 | |
| Nm | 65 | 115 | 175 | 250 | 350 | 500 | 600 | 700 |
| lb-ft | 48 | 85 | 129 | 184 | 258 | 369 | 443 | 516 |
Hex Nuts: Low Height
All Torques ± 10%
| M12 | - | M16 | M20 | M24 | M30 | - | - | |
| Nm | 60 | - | 125 | 200 | 275 | 350 | - | - |
| lb-ft | 44 | - | 92 | 148 | 203 | 258 | - | - |
Spanner Nuts
All Torques ± 10%
| M17 | M25 | M35 | M45 | M55 | M65 | M75 | M85 | |
| Nm | 50 | 120 | 250 | 500 | 600 | 700 | 800 | 900 |
| lb-ft | 37 | 89 | 184 | 369 | 443 | 516 | 590 | 664 |
Securing Spanner Nut
Max Torque
| ....M100 | M100.... | - | - | - | - | - | - | |
| Nm | 50 | 80 | - | - | - | - | - | - |
| lb-ft | 37 | 59 | - | - | - | - | - | - |
Final Check
After initial torque, grease the pivot (if applicable), move the machine through full range of motion several times and recheck the torque. Check the torque after 10 hours, 40 hours and at regular service intervals to ensure proper seating of the sleeves.
Sprawdzić, czy odległość pomiędzy podkładką napinającą, a uchem wynosi minimum 0,5 mm. UWAGA! Jeżeli podkładka napinająca styka się z uchem, skontaktuj się z dilerem lub firmą Expander.
