iOptron 7100, 7101, 7102 (2), (3), Front CW Position Screw

5. InstallCounterweight(CW)Shaft:(1)RemoveCW

ShaftLockingScrew.(2)InsertCWShaftintotheCW

MountingNose.(3)ThreadintheCWShaftLocking

Screwfromtheotherside.(4)TightentheFrontCW

PositionScrew.

CW Shaft Locking Screw

CW Mounting Nose

(1)



(2)(3)Front CW Position Screw



Rear CW Position Screw

[TIP:Atverylowlatitudes(<10°),toavoidCW

bumpingintotripodleg,turntheRearCWPosition

Screw(ahexheadsetscrew)furtherintoCW

MountingNosebeforetighteningtheFrontCW

PositioningScrew.]

6. InstallCounterweight:RemoveCWSafetyCapatthe

endofCWShaft.Withthewideropeningtowards

theshaftend,guideCWthroughtheshaft.Usethe

CWLockingScrewtoholdtheCWinplace.Place

SafetyCapbackontotheshaft.

[TIP:ZEQ25comeswitha10.4lbs(4.7kg)CW,which

shouldbesufficientforpayloadsuptoabout13lbs

(6kg).UseextraCWorCWExtensionBartobalance

higherpayloads.]

7. BalancePayload:Afterattachingscopeand

accessories,themountheadassemblymustbe

balancedinbothR.A.andDECaxestoensure

minimumstressesonthemountdrivingmechanism.

CAUTION:ThetelescopemayswingfreelywhenR.A.

orDECGearSwitchisopen.Alwaysholdontothe

telescopeassemblybeforeopeningthegear

switchestopreventitfromswinging,whichcan

causepersonalinjuryand/orequipmentdamage.

TurnTensionAdjustercounterclockwisetorelievethe

contactpressure.TurnGearSwitchKnobby90°to

theOPENpositiontodisengagethewormfromthe

wormwheel.

[TIP:Anyhesitationinturningtheknobby90°

usuallymeansthattheTensionAdjusterhasnotbeen

loosenedenough;turntheTensionAdjuster

counterclockwisebyoneormoreturnsfurther.]

Tension Adjusters

OPENLOCK

Gear Switch



CAUTION:ThebalanceprocessMUSTbedonewith

GearSwitchatOPENposition!Otherwiseitmight

damagethewormsystem.

WiththecorrespondingGearSwitchintheOPEN

position,balancetheassemblyinR.A.axisbymoving

CWalongitsshaft,andbalanceinDECaxisbymoving

thescopewithaccessoriesbackandforth(seephotos

below).

Onlybalanceoneaxisatatime.

CW Shaft inserts into

CW mountin

nose.