NorthStar RIM Tach
®
8500 & 8500 Quad Instruction Manual
17
Dynapar (800) 873-8731 November 2008
Figure 9: Enclosure Installation
3.4 Directions for Installing End-Of-Shaft Pulse Wheel and Enclosure
Caution must be used when handling the pulse wheel assembly. The surface of the pulse
wheel outer rim is sensitive to scratches and impacts. The magnetic properties of the
pulse wheel material can also be distorted or erased by exposure to strong magnetic
fields.
Remove pulse wheel assembly from packaging. Leave protective red rubber band in place over pulse wheel.
Place one spacer washer into the shaft recess of the pulse wheel. See figure 12.
The pulse wheel is designed to use one spacer washer for a motor shaft length of 0.400 ±0.010 inch.
If the motor shaft is a different length, please refer to section titled ‘Non Standard End-Of-Shaft
Mounting Procedure’ for axial adjustment procedure.
Place pulse wheel shaft recess over the end of the motor shaft. Rotate the wheel so that the mounting bolt
holes line up with the shaft tapped holes. Press the wheel assembly onto the shaft until it seats. Light tapping
on the steel hub may be required.
Some motor shafts do not have anti-rotation mounting holes. Instead, they have only
one center tapped hole. For these cases, please review the Non-Standard End-of-
Shaft Mounting Procedure.
Insert and snug mounting bolts into the wheel. If the pulse wheel has not already seated, alternate tightening each bolt
until it is seated. (E01 Pulse Wheel [1.125 inch shaft] units require only one center mounting bolt. After complete
tightening the pulse wheel, tighten the 10-32 anti-rotation set screw.)
Tighten each bolt to the proper torque: 15 foot-pounds for 10-24 bolts, and 30 foot-pounds for 3/8-16 bolts.
The pulse wheel should be seated flat against the motor shaft. The wheel should not
appear to wobble if the motor shaft is turned by hand. Excessive wobble (0.020” TIR)
can damage the pulse wheel and sensor modules.
Содержание NorthStar Rim Tach RT8500
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