Dynojet 424x: Installation Guide - Manual (Page 86)

In Ground Model 424x/424xLC 2 Automotive Dynamometer Installation Guide
C H A P T E R 4
Eddy Current Brake Installation
4-2
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EDDY CURRENT BRAKE INSTALLATION
This section will walk you through removing the eddy current brake from the crate,
installing the eddy current brake to the dyno, and installing the theta controller.
These instructions will show the stationary dyno, but the instructions are the same for
both the stationary and 4WD dynos.
You will need to provide equipment capable of lifting the eddy current brake off the
crate and into position in your dyno room. You will also need a pair of straps. Dynojet
recommends using single loop style straps.
Refer to Appendix B for information on the power requirements for the eddy current
brake.
B EFORE I NSTALLING THE E DDY C URRENT B RAKE : V ERIFY O PTIMAL B RAKE C OOLING
Placing the eddy current brake on the left or right side of the dyno will determine the
direction that it turns.
For optimal eddy current brake cooling, the brake should turn in the direction of the
arrows on the rotor.
Note: The dyno will perform correctly in either direction, but cooling of the
rotors may be less effective when turning in the direction opposite of the arrows.
The example below shows the brake turning in the direction of the arrows on the
rotors.
Figure 4-1: Optimal Brake Cooling
EB165
arrow on rotor
direction of
rotation
load cell
stationary dyno 4WD dyno
front of dyno