APPLICATION
Manual Hoist Modification for use with model T or GT operators.
•655209 for 1/3 & 1/2 HP trolley operators with #48 drive chain
•6552091 for 3/4 & 1 HP trolley operators with #48 drive chain
•6552092 for GT operators with #41 drive chain
Modification provides hand chain operation for manually opening/closing the door as follows:
1.A chain wheel is coupled to a cross header shaft which in turn is coupled to the front idler of the trolley.
2.The front idler pulley is replaced by a #48 sprocket thus allowing the chain wheel to drive the door arm.
Manual Hoist Modification
Used For Trolley Operators
655209 (1/3 & 1/2 HP trolley operators)
6552091 (3/4 & 1 HP trolley operators)
6552092 (GT operators)
PACKING LIST
*
PREPARATION
1.Door size to be indicated at time of order. If the door size specified is 16 feet or taller a sash chain and key ring package will also be included with packing list.
2.A cross header shaft is required for installation of this manual hoist (not provided).
This shaft is available and will be provided if specified at time of order.
1" cold rolled steel shaft 12 ft. long, for doors up to 20 ft. wide 1" cold rolled steel shaft 20 ft. long, for doors over 20 ft. wide
3.Hand chain length is twice the door height less 3 feet. Ensure the proper length of chain has been provided.
4.If the manual hoist is being added to pre-installed operator, it will be necessary to move the operator and track assembly back (into the garage) approximately 6" to allow for installation of the new front drive assembly.
1
1.Disconnect power to operator.
2.Existing Installation: Using proper temporary support for the operator and track assembly, disassemble the existing front bracket and idler assembly from the track end (Refer to owner’s manual if necessary).
New Installation: Assemble the trolley operator according to the owner’s manual. Use the new front bracket and idler provided.
3.The chain hoist can be installed on the left or right side of the door. Determine which side the chain hoist will be mounted on and install the front idler assembly with the sprocket coupling facing in the desired direction. Be sure to install a track spacer at the end of the track.
4.Using the chain and master link provided, lengthen the existing chain provided with the operator. Add/Remove links as required for proper tension of the drive chain. Refer to the owner’s manual for the proper tension value.
5.Position and mount the operator/track assembly as indicated in the owner's manual.
NOTE: The front bracket will not pivot as shown in the manual so temporary support of the operator will be required.
6.If you supply your own shaft you will need a length of 1" solid shaft (ideally cold rolled steel). The approximate length of this shaft should be one-half the door width plus 2 feet. Determine the chain hoist location and cut the shaft to the desired length.
WARNING
To prevent possible SERIOUS INJURY or DEATH, disconnect electric power to operator BEFORE installing.
ALL installations and electrical connections MUST be made by a qualified individual.
7.Install the 48B14 sprocket on one end of the shaft, (Figure 2). Align sprocket flush with end of shaft, drill a 1/4" diameter hole through sprocket hub and shaft. Secure using 1/4" x 1-3/4" rollpin. Slide the two shaft support bearings onto the shaft. Drill and pin the 40 tooth drive sprocket in desired location on the opposite end of the shaft.
8.Supporting the far end of the shaft, butt together the two 48B14 sprockets and connect using the #41 chain provided.
9.Position the bearings on shaft so that one bearing is at the mid point and the other as close to the 40 tooth sprocket as possible. With the shaft level and using suitable hardware, secure the bearings.
10.Vertically align the hand chain sprocket with the 40 tooth drive sprocket. With the chain in place, and using suitable hardware, secure the hoist housing. Align and secure the hand chain retaining bracket.
FIGURE 1
Eyelet*
Driven Sprocket #50B35
Cable Clamps (2) *
Spring*
Brake Release Chain*
Drive Sprocket
(Can Be on Either Side)
Chain Retaining Bracket
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Front Bracket and Idler Assembly |
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Eyelet* |
(Can be Installed for Right or Left |
|
Hand Drive, Left Hand Shown) |
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|
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Brake Release Cable* |
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Eye Bolt* |
Bearings |
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Track Spacer* |
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Chain and Sprocket |
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Coupling |
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Interlock Switch (Wired to Operator) See Instructions
Manual Hoist Housing
* Items are Provided Only if Operator is Equipped with Solenoid Brake.
48B14 Sprocket 1" Bore
FIGURE 2
1" Diameter Shaft
Be Sure Shaft is Flush With
Sprocket. Do Not Let Shaft
Protrude Beyond Sprocket.
Eye Bolt*
Eye Bolt*
Solenoid Brake
(When Required)
Hole - Pin With 1/4"x1-3/4" Roll Pin
2
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