Orion 7816 User's Manual
Contents
1. Orion Cooling Fan 7816 The Orion cooling fan is designed to work with 8 10 and 12 Orion reflector telescopes The cooling fan significantly reduces the cool ing time of the large mirror which results in crisp views in a shorter amount of time It runs safely silently and with no vibration imparted to the telescope These instructions will tell you how to install and use the cooling fan Please read them thoroughly before installing the fan Parts List 1 Fan 1 Fan cover 1 Battery pack 4 Screws 4 Washers Assembly 1 Place the fan on the rear of the mirror cell of the telescope and line up the holes in the fan with the threaded holes in the mirror cell Make certain the label on the fan is facing the primary mirror 2 Place the fan cover over the fan so the holes in its corners line up with the holes in the fan and mirror cell Figure 1 The fan cover should be oriented so that its corners seat flush onto the fan 3 Thread a screw with a washer attached through the fan cover and fan and into the mirror cell Figure 2 Firmly tighten the screw but be careful not to overtighten and strip the threads Repeat this for the other three screws and washers 4 Insert eight D cell batteries not included into the battery pack Orient the batteries as shown on the white plastic battery holder 5 Plug the cord from the battery pack into the fan The fan should begin rotating If it doesn t check the connectio2. ille CA 95076 If the product is not registered proof of purchase such as a copy of the original invoice is required This warranty does not apply if in Orion s judgment the instru ment has been abused mishandled or modified nor does it apply to normal wear and tear This warranty gives you specific legal rights and you may also have other rights which vary from state to state For further warranty service information contact Customer Service Department Orion Telescopes amp Binoculars 89 Hangar Way Watsonville CA 95076 800 676 1343
3. ns and orienta tion of the batteries and try again To turn the fan off unplug the cord from the fan Using the Cooling Fan The cooling fan should be turned on as soon as the telescope is brought outdoors before observing It should run for approximately 15 30 minutes to properly cool down the telescope During observ ing the fan should be turned off This is because even though it runs free from vibration the air currents it generates in the optical tube will degrade image quality Once the mirror has cooled to the outdoor ambient temperature the fan will not be needed again until your next observing session IN 217 Rev C 03 09 Figure 1 Line up the holes in the fan and fan cover with the holes in the rear of the mirror cell Figure 2 Attaching the fan to the mirror cell Customer Support 800 676 1343 Email support telescope com Corporate Offices 831 763 7000 89 Hangar Way Watsonville CA 95076 Providing Exceptional Consumer Optical Products Since 1975 One Year Limited Warranty This Orion Cooling Fan is 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 amp 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 Watsonv
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