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Maintenance
Bearing and Seal Installation
Instructions for Seal & Bearing Assembly Kits
P/N 23432
STONE® Mortar Mixers
1050PM, 1265PM, 1285PM, 1650PM and HM1290
ITEM P/N DESCRIPTION QUANTITY
1 24017 Washer 2
8 25881 Washer Split 1
15 32003 Bearing 1
16 32324 Seal Drum Yellow 4
1. Disassemble drum from frame and remove. Unscrew end bolts from paddle shaft and remove spacers and bull gear.
2. Attach a three-jaw puller to ring on housing, center puller on paddle shaft and remove housing and bearing.
3. Remove worn components and clean shaft and housing as needed.
4. Assemble seals and spacers over paddle shaft, flush with drum end using soapy water mixture as lubricant.
5. Make sure seals are assembled tight up to drum end; inner lip of seals curve inwards towards drum end as illustrated.
6. Insert bearing into housing and slide over shaft and seals as illustrated.
7. Tighten housing evenly to drum end so as not to pinch seals.
8. Reassemble spacer, bull gear (if applicable), washer and bolt to paddle shaft and repeat steps 4-7 on opposite end and reassemble
drum to frame.
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