ETC Source Four Revolution User Manual

Page 41

Routine Maintenance

Adjusting rear lens belt:

Step 1:

Step 2:

Using both hands, gently move the IMF assembly forward toward the front lens

so that you can access the rear lens motor.

Step 3:

Loosen, but do not remove, the two motor mounting screws so that the motor

moves freely.

Step 4:

Move the motor back and forth to allow the spring to take up the slack in the belt.

Step 5:

Tighten the top screw and then the bottom screw.

Step 6:

Gently move the rear lens back and forth with both hands. There should be a

slight resistance.

Motor Adjustment

Screws.

Belt Tension

Motor