4
tighter Thumb Screw with fingers, then back off Thumb Screw 1/8 to
1/4 turn to eliminate possibility of distortion in Blocks.
CAUTION
Do not use pliers or wrench.
3. Turn Eccentric until "V" is in lowest posi-tion. Setting fixture is
now ready to use.
SETTING GAGE TO READ VALVE SIZE
1. Insert Probe between Blocks all the way to the stop, and rest in "V"
of Eccentric with gage dial up (see Figure 5).
2. Set gage to approximately "0" with Wrench.
3. Turn Eccentric until indicator reaches largest plus (+) reading.
NOTE: You may have to repeat Step 2 to get largest (+) reading.
4. Rotate Probe slightly until indicator reaches largest minus (-)
reading (refer to Figure 5). (Do not force when rotating Probe. It may
require depressing retracting lever to reset).
5. Set gage to "0" with Wrench and rotate Probe slightly to check that
needle returns to "0".
FIGURE 5
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