Counterweight Shaft Extension Bar (Optional); Counterweights - Paramount Fitness ME II User Manual

Counterweight Shaft Extension Bar (Optional)

The optional counterweight shaft extension bar (sold separately) screws into the end of the Paramount
standard counterweight shaft. This bar both extends the moment arm and allows up to two additional
counterweights for ultra-heavy payloads.

Counterweights

Two counterweights are included with the Paramount and can be mounted on the counterweight shaft
to balance the mount's payload. Slide the counterweight to the approximate balance position, and then
rotate the counterweight knob until the knob is hand tight. A softer metal brass plunger on the end of
the knob holds the counterweight in place and will not score or gouge the stainless steel shaft.
The table below shows the counterweight specifications by model.
Model Counterweight Specifications
14 kg (30 lb.), 1.875 in. bore
Technical drawing URL:
In addition to the 1.875-in. diameter counterweight shaft, the Paramount ME II can also
accept the 1.5-in. diameter Paramount ME/MX counterweight shaft.
9 kg (20 lb.), 1.5 in. bore
Technical drawing URL:
4.5 kg (10 lb.), 1.5 in. bore
The amount of counterweight required to achieve balance depends on the total weight of the optical tube
assembly and accessories, and how the weight is distributed. Before adding any counterweights to the
counterweight shaft, first estimate how much counterweight is required, and then add this amount to the
counterweight shaft. Err on the heavy side. The counterweights should initially "outweigh" the optical
tube assembly by being too far down the shaft.
counterweight shaft will tend to rotate so that the counterweights are downward, instead of your
expensive equipment.
Once sufficient counterweights are added, the right ascension axis should be very "bottom heavy." At
this point, adding the optical tube assembly should result in a system that is somewhat close to being
balanced.
Counterweights are extremely heavy!
caution so that you do not accidentally drop one and injure
yourself or others!
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This way, when fine-tuning the balance, the
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