Veris-technologies MSP3 - Operating Instructions Manuel d'utilisateur télécharger pdf (Page 95)

Pub. #OM17-MSP3

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Procedure #8: Bearing Repair and Replacement

The coulter electrode hubs operate in a significantly harsh environment, and annual inspection is

of utmost importance. The double-lip seals are designed to keep grease in, and contaminates out,

but they are the cause of practically all hub failures. It is advisable to disassemble, clean and

repair annually. To perform this maintenance, do the following:

1) Remove hub cap by turning in a clockwise direction (left-hand thread

prevents loosening in operation).

2) Remove cotter pin, castle nut, thrust washer, and remove hub.

3) Remove outer bearing and knock out inner bearing and both races (cups)

4) Veris recommends that you purchase our Coulter Hub Repair Kit (PN

32641) that includes new bearings, races, seal, o-ring and cotter pin.

5) Thoroughly wash hub in solvent and dry.

6) Spindle end may need grinding—see spring plunger replacement

Procedure #4

7) Reassemble and adjust bearing pre-load by fully tightening spindle nut,

then backing off until you can turn the hub fairly easily with one hand–

normally this involves backing off 1- 2 slots on the castle nut, and

inserting cotter pin. Excessive pre-load may cause plugging in extremely

loose soil conditions, and excessive endplay may damage the spring

plunger. Hub should have no side play when assembled, but should turn

with little resistance. Drive round end of cotter pin firmly into nut, and bend

upper portion of cotter pin upward and trim of excess length of both top and

bottom with cutting pliers. Do not bend cotter pin over the end of

spindle as it will interfere with spring plunger.

8) Fill hub via grease zerk until grease pushes through outer bearing.

9) Install hub cap by threading counter-clockwise on the hub. Check to make

sure that hub still rotates freely. If not, the cotter pin may too long, and is

contacting hubcap –remove cap and check cotter pin length.

10) Adjust spring plunger clearance as mentioned in Procedure #5.

Figure 8.1

Seal

Hub

Nut

Thrust Washer

Bearing

Swing arm

1 2 ... 90 91 92 93 94 95 96 97 98 99 100 ... 115 116

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Veris-technologies MSP3 - Operating Instructions Manuel d'utilisateur Page 95