LT50/60 CMO Motor
Installation Instructions
1. TUBE PREPARATION
2. PREPARING THE TUBULAR MOTOR
"SOFT CLIP" "HARD CLIP"
"SOFT CLIP"
"SOFT CLIP" BROWN.
"HARD CLIP"
BLACK.
3. FITTING THE MOTOR INTO THE TUBE
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Cut the tube to the required length (B), taking into account
the width of the installation (A), the motor end clearance
(C), and the idler end clearance (D). (See Fig. 1)
USE FORMULA TO DETERMINE MEASUREMENTS.
Remove all burrs from the ends of the tube and ensure that
the inside of the tube is clean.
For all round tube sizes up to 3.35" (85 mm) inclusive,
notch the tube on the motor end to the dimensionsA&B.
(See Fig. 2)
For all tubes over 3.35" (85 mm) form a tongue in the motor
end of the tube by making two cuts 1" (25 mm) apart and
.75" (20 mm) deep. (See Fig. 3)
Place the crown wheel over the body of the motor. Slide
the slot in the motor crown over the raised key on the
motor's limit switch unit. (See Fig. 4)
A crown is not necessary on
2.0" Tube when used with LT50, and
2.5" with LT60.
Fit the drive wheel on to the output shaft of the motor.
There are two types of LT drive wheels: Removable or
type, and fixed or type. The
drives are available for round tubes in
2.0", 2.5", and 2.75" diameters. The drive wheel can be
removed by physically pulling it off the motor shaft. For the
ease of identification all drives are
The drives can only be removed from the
shaft by pressing the two clips inward at the same time.
The motor must be out of the tube in order to have access
to the clips. These drives are
For round tubes: Measure the drilling length R according to
the motor type listed in the table below.
(See Fig. 5,
6) Secure the drive wheel to the tube using four 7/32 steel
pop rivets or four 1/4 DIA. screws.
Tube
only
Fit the end plug into the
other side of the tube and secure it with three steel pop
rivets. Use only fasteners with steel grades SAE 5 or higher.
Metric fasteners must be grade 8.8 or higher. (See Fig. 7)
Fit the motor into
the tube ensuring that the notch at the end of the tube
slides over the raised key on the crown wheel.
LT60 CMO
MOTOR
TYPE
R
in./mm
660R2 CMO
680R2 CMO
6100R2 CMO
24.8/630
26.2/665
26.2/665
LT50 CMO
MOTOR
TYPE
R
in./mm
525A2 CMO
530R2 CMO
535A2 CMO
540R2 CMO
550R2 CMO
22.80/579
22.80/579
25.55/649
25.55/649
25.55/649
A
B
C
D
B =A-(C+D)
Fig. 1
Fig. 5
Fig. 4
Fig. 7
R
Raised Key
Fig. 6
Tube Notch
Tube Notch
Tube Diameter
Less than 3.35"
(85mm)
Tube Diameter
Greater than 3.35"
(85mm)
A
B
Fig. 2
Fig. 3
.75"
(20mm)
(25mm)
1"
AB
Length = 25 mm Width=4mmNotch: LT50
LT60 35 mm
8mm
Raised Key
Raised Key
Notch
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