Varec 2500, Installation And Operation Manual

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Varec, Inc. 39
Caution Do not continue to turn the hand crank after the float reaches the top of the
tank, the bottom of the tank or the product level.
Caution Do not use the hand crank for any installation that directly attaches the tape/
tape cable to a floating roof. Damage to the gauge may result. The hand crank gauge head
should not be used in this type of installation.
1. Ensure that the hand crank is in the engaged position. To engage, push the ratchet pawl
lever up and push the crank handle hub inward until the ratchet pawl engages the ratchet
gear.
2. To wind the motor, turn the crank the number of times indicated in Table 3, Turns to Wind
Negator Motor. Turn until the motor is wound and the ratchet pawl is at mid position
(engaged).
Table 3: Turns to Wind Negator Motor
3. Perform the procedure in section . to install the tape in the gauge head.
4. Hold the crank handle firmly and hold the ratchet pawl up.
5. Crank clockwise to lower the float to the bottom of the tank, while observing the tape
travel through the elbows and gauge head.
•
There should be no binding.
6. Disengage the hand crank.
•
To disengage, hold the ratchet pawl lever up, pull outward on the crank handle
hub until the gear is disengaged. Then push the ratchet pawl lever down.
Trimming the Cable at the Float in a Floatwell
Note Ensure you have completed all previous steps from your installation checklist
before proceeding.
1. Check the tape/tape cable path between the float and the gauge head to be sure that it is
not kinked or twisted.
2. Check that the tape/tape cable splice position is at the bottom end of the outboard elbow
connection.
Caution Splice must reside in vertical pipe throughout the total travel of the roof. If
splice enters gauge head, gauge will hang up and damage will result. If splice passes over
elbow sheave, the gauge may hang up or may cause the tape/tape cable to become dis-
lodged from the sheave.
Motor Sheave Part
No.
Gauge Head Motor (Normal Application) Turns with Float Crank
(hand crank turns)
BA7762 Standard: 0 - 60' (0-18m) tank range 120
BA17725 Extra Strong: 0 - 60' (0-18m) tank range 125
BA17087 Extra Long: 0 - 90' (0-27m) tank range 168