Digga PDD-PD50, Руководство по обслуживанию и ремонту, Страница: 6 / 69

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PM-000100-D PDD - PD50 Service and Repair Manual - October 2017
PRIMARY PLANETARY SUBASSEMBLY
Rotate planet gear to check for any abnormal noises or roughness in the primary planet bearings. At the same time, inspect planet gears for any
damage or worn teeth. If replacement or further inspection is required, proceed as follows. For PD15 - PD22 lift top gear set from bottom set then
proceed as follows.
1. Remove circlips from top plate and remove plate.
2. Slide planet gears from carrier.
3. Remove bottom plate.
4. Check primary planet shafts, top and bottom plates, centre thrust washer, needle rollers and gears for any abnormal wear.
5. Replace any worn items.
6. Assembly: Fit centre thrust washer, fit bottom plate, fit gears, insert needle rollers into gears using lubricating oil, fit top washer and install
circlips to posts place gear set into ring gear and place sun gear into gear set, ensure all turns freely.
CAUTION: THE NEEDLE ROLLER BEARINGS ARE NOT CAGED THEREFORE CAN FALL FREE.
NOTE:
IF THE PLANET SHAFTS ARE WORN, THE COMPLETE CARRIER ASSEMBLY MUST BE REPLACED. THE POSTS
SHOULD NOT BE REPLACED IN AN EXISTING CARRIER.
SUIT PD25-PD50 SUIT PD15-22 POST APRIL 2011