35
11625-101-Rev. L
Adjustments
Adjusting Tension of Hinged Reading Rod Holder
The Reading Rod Holder is held in the stored position
by a spring clip. The Rod Hinge contains two pins
which engage into the clip when moved to the vertical
position.
The Reading Rod Hinge is under tension. Occasion-
ally you may want to readjust this tension. To do so:
1. Hold one of the slotted head nuts with a screw-
driver.
2. With a second screwdriver tighten the other nut.
Refer to Figure MM-3.
3. Periodically the bearing which secures the Read-
ing Rod Holder requires lubrication. Move the
holder to the down position for accessibility to oil the hole and add a drop or two of light oil.
Adjustment of Dial Rotation Tension
The sphere lens system, cylinder lens system, and
auxiliary lens system all have rolling Index Wheels.
The pressure of the wheel in the dial index deter-
mines, to a considerable degree, the “feel” of the
dial rotation and indexing.
Each may be adjusted from the outside of the in-
strument with no dismantling required.
Refer to Figure MM-4 to see the adjusting screws
positioned at the bottom of the lens housings.
1. The screw in front, or cylinder section, controls
indexing tension of the cylinder power mechanism.
2. The center screw of the three which is in the forward portion of the rear, or sphere section, con-
trols indexing tension of the sphere power mechanism.
3. The screw in the back portion of the rear, or sphere section, controls indexing tension of the
auxiliary lens mechanism.
Note:
A standard 5/64” Allen wrench is used.
4. In each case, clockwise rotation of the adjusting screw increases indexing tension and counter-
clockwise rotation reduces indexing tension.
Cleaning & Maintenance
(continued)
Figure MM-3 Cross Cylinder Lens Assembly
Clip
Slotted Nut
Figure MM-4 Dial Rotation Tension
Auxiliary
Sphere
Cylinder
