Perkins — To Replace Power Throw Brush Idler Bearings
Repair & overhaul
From a Perkins service manual — check it applies to your exact model before use.
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Before you start
- Raised hopper may fall. Engage hopper support bar
Procedure
- Set parking brake and remove the Power Throw brush and idler plate.
- Remove M6 hex screw holding the plastic idler plug on the idler shaft; pull plug off; retain square key.
- Remove two M6 hex screws holding the bearing cup to the idler arm; remove bearing cup assembly.
- Remove the first snap ring from the shaft.
- Press the bearing nearest the key way off the shaft; press the second bearing off.
- Press both new bearings on the shaft, being careful not to damage the snap rings.
- Reinstall the bearing cup assembly using two M6 hex screws; tighten to 8--10 Nm.
- Reinstall the snap ring removed in step 4.
- Reinstall the idler plug to shaft using M6 hex screw; tighten to 8--10 Nm.
- Reinstall the idler plate, brush, lower hopper, and operate checking brush operation.
Tools required
- Press Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- M6 hex screws 8--10 Amazon eBay FridayParts $149.00 Nm (5--7 ft lb)
Source: Perkins service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.