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Fulcrum DRX-3 Assembling

Torsion balance

The balance is a precision instrument which has been carefully adjusted for a

maximum degree of sensitivity. Please handle all parts gently when unpacking. The pans

and pan supports are packed in tissue under the lid of the balance. Remove these loose

parts and set them aside. Do not dispose of any packing material until the balance is

completely assembled and operating properly. Contact the carrier if there is any evidence

of damage in transit.

The balance is always locked with internal shipping arrest posts (B) before

shipping to avoid breakage. Figure 1 illustrates the locked position, that is, with shipping

arrest posts restraining the movement of the upper and the lower beams. Figure 2 shows

the unlocked position with the shipping arrest posts moved away from the beams and

secured in position for use.

Assembling DRX-3 Torsion Balance

Table of Contents

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Page 1 Assembling DRX-3 Torsion Balance The balance is a precision instrument which has been carefully adjusted for a maximum degree of sensitivity. Please handle all parts gently when unpacking. The pans and pan supports are packed in tissue under the lid of the balance. Remove these loose parts and set them aside.
Page 2 UNLOCKING THE BALANCE 1. Be sure the small operating knob in the lower front center of the base is turned clockwise to lock the balance. Lay the balance on its back and loosen the two knurled shipping arrest knobs (A) under the base (shown in figure 1). Do not touch the screw in the center of the knobs.
Page 3 MAINTENANCE INSTRUCTIONS No oil or other lubrication is required nor should any be used on any parts inside the balance. An occasional drop of light machine oil on the operating shaft pivots and leveling screws is permitted. (Be sure to rotate the operating knob clockwise to lock the balance and remove the pans and pan holders before laying it on its back.) Wiping the balance periodically with a dry, static-free cloth will maintain the exposed areas in good condition.