User manual ORION TELESCOPES & BINOCULARS EQ-1M EQ-2M DRIVES

[. . . ] PARTS LIST EQ-1M and EQ-2M 1 Motor drive assembly 1 Hand controller 1 Battery pack EQ-1M only 1 2mm Allen wrench 1 4mm Allen wrench Socket-head setscrew Mounting bracket Drive coupling Input jack 2. Installing the EQ-1M Motor The EQ-1M Motor Drive System is intended for use with telescopes that utilize the Orion EQ-1 equatorial mount. When facing the front of the mount, the right ascension (R. A. ) slow-motion control cable should be mounted on the left end of the R. A. If it is mounted on the right end, remove it from the mount, and reinstall it on the left end of the shaft. Figure 2. [. . . ] Make sure the motor gear is positioned directly underneath the circular gear. 5. Slightly loosen the locking T-bolt and the motor will engage. When the motor is engaged, never, under any circumstances, should you use the R. A. slow-motion cable by rotating the clutch mechanism on the mount clockwise. The clutch mechanism pushes the motor down, and separates the motor gear from the circular gear. Re-engage the motor by rotating the clutch mechanism counter-clockwise; the spring will then pull the motor back up, which causes the motor gear and the circular gear to mesh properly once again. If the spring does not pull the motor up so that the gears mesh, the locking T-bolt is probably too tight. The motor is now properly installed on the EQ-2 mount, and should appear as in Figure 6. Clutch mechanism Motor mounting shaft Spring Figure 4. Orion EQ-2 mount comes with many parts of the EQ-2M Motor Drive System preinstalled. 2. The motor itself fits onto the motor mounting shaft. Loosen the motor's locking T-bolt and slide the cylinder of the motor housing onto the shaft. Make sure that the small gear on the motor is just underneath the circular gear on the end of the R. A. Rotate the motor until the motor gear and the circular gear mesh. Tighten the locking T-bolt; the end of the T-bolt should seat into the groove in the motor mounting shaft. Connect the spring (Figure 6) on the motor housing to the knurled setscrew underneath the R. A. Do this by first loosening the setscrew about five turns. Now, stretch the spring and slide its end ring over the knurled head of the set screw and onto the threads. If you are having trouble stretching the spring with your fingers, try using a pair of pliers around the body of the spring. Figure 6. The EQ-2M motor properly installed on the EQ-2 mount. 4. Operation Insert four D-cell batteries into the battery pack. Orient the batteries as indicated on the white plastic battery holder. Connect the end of the battery pack's power cord to the DC power input on the hand controller. [. . . ] Note that whenever any of the four buttons on the hand controller are pressed, the LED in the center of the hand controller will shine red; when the button is released, the LED will shine green again. 5. Specifications EQ-1M Guiding rate: 100% sidereal Centering rate: 800% sidereal Power requirement: 6V DC Battery type: four D-cell Northern or Southern Hemisphere operation Externally clutched EQ-2M Guiding rate: 100% sidereal Centering rate: 400% sidereal Power requirement: 6V DC Battery type: four D-cell Northern or Southern Hemisphere operation Externally clutched One-Year Limited Warranty This Orion EQ-1M & EQ-2M Motor Drives are warranted against defects in materials or workmanship for a period of one year from the date of purchase. This warranty is for the benefit of the original retail purchaser only. During this warranty period Orion Telescopes & Binoculars will repair or replace, at Orion's option, any warranted instrument that proves to be defective, provided it is returned postage paid to: Orion Warranty Repair, 89 Hangar Way, Watsonville, CA 95076. [. . . ]