LiftMaster 65-5208 Dual-Trolley Modification Package for 12-Foot Doors – 1/2 HP, #48 Chain
LiftMaster 65-5208 Dual-Trolley Modification Package for 12-Foot Doors – 1/2 HP, #48 Chain
Convert a compatible LiftMaster T-series commercial trolley operator to a dual-trolley drive arrangement for a 12-foot-high door with this application-specific package.
Specifications:
- Base modification number: 65-5208
- Store SKU: 65520812STK
- Door-height configuration: 12 feet
- Operator application: Compatible 1/2 HP T-series trolley operators
- Drive-chain size: #48
- Product type: Dual-trolley modification
- Brand: LiftMaster
A dual-trolley configuration distributes the operator’s pulling force across two rail and trolley assemblies. It may be specified for unusually wide or flexible sectional doors where a single center trolley could produce uneven movement or excessive stress.
Additional application components can include:
- Two compatible 10-58XX-P trolley rails
- Additional 19-58-XX chain package
- Cross-header shaft
- Door arms, brackets, sprockets and supporting hardware
The exact components depend on the door height and width. LiftMaster identifies the 11-5212 twelve-foot round bar for doors up to 26 feet wide and the 11-5220 twenty-foot bar for wider doors.
Professional engineering, installation, alignment and safety testing are required.
Details
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