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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

1

Remover qualquer bucha para eliminar desgaste futuro entre bucha e olhal de montagem.

2

Reparar qualquer estrutura danificada ex. Trincas ou olhais tortos.

3

Suavize irregularidades na superfície dos furos dos olhais.

4

A diferença entre diâmetro min. e max. no desgaste do olhal deve ser dentro de .06” (1.5 mm) para o correto encaixe das luvas.

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

5

Engraxe as luvas e eixo com a graxa disponível, de preferência graxa grafitada. NÃO ENGRAXE AS ROSCAS.

6

NOTA! Se aplicável: posicione a saída de graxa a 90 graus para forçar a direção para minimizar a concentração de estresse na saída.

7

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.

 

8

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.

9

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

10

Parafusos hexagonais

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

Porcas hexagonais: Altura padrão

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

Porcas hexagonais: Altura baixa

Todos os Torques ± 10%

  M12 - M16 M20 M24 M30 - -
Nm 60 - 125 200 275 350 - -
lb-ft 44 - 92 148 203 258 - -

Porcas redondas

Todos os 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

11

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.

12

Verifique se existe uma distância de no mínimo 0.5 mm entre a arruela e o olhal. ATENÇÃO! Se a arruela estiver em contato com o olhal, contate seu revendedor do Sistema Expander.