Varec 2500 - Page 75

Varec, Inc. 65
18. Tighten the three screws (43) mounting the counter assembly.
19. Slip the dial
(7) under the red pointer of the counter assembly and onto the hub. Rotate the
dial until the tab from the dial gear
(5) registers with the slot in the dial.
20. Install dial retainer
(9) on dial (7) and secure it with three screws (40).
21. Place washer
(37) and Teflon washer (4) on the counter shaft assembly (11).
22. Place the sprocket sheave assembly on the counter shaft assembly
(11).
23. Place the tape storage sheave assembly on the lower shaft.
24. Place the motor storage sheave assembly
(48) on the upper right shaft.
25. Align the motor storage
(48) and the tape storage sheave assemblies. Ensure that the bot-
tom of the motor storage sheave flange is 0.040" to 0.060” clear of the top surface of the
tape storage sheave. Adjust height by using shim washers
(45) as required.
26. Align the groove center line of the sprocket and the tape storage sheave assemblies.
Ensure that the top surface of the sprocket sheave flange is 0.030 to 0.040” below the top
surface of the tape storage sheave flange. Adjust height by using shim washers (45) as
required.
27. When properly aligned, tighten the set screw
(28) in the sprocket sheave assembly (18).
28. Test that the counter assembly
(21) functions properly with no axial play in the counter
shaft and sheave assemblies.
29. Remove the motor storage sheave assembly
(48) from the gauge head.
30. Assemble tape keeper assembly
(16) containing items 27, 16, 28. Apply Loctite #262 or equal
to screw threads, and thread assembly into the gauge head body.
31. Adjust the tape keeper spring for a clearance of 0.020" to 0.030” against the sprocket
sheave assembly.
32. Place the motor storage sheave assembly
(48) back into the gauge head.
33. Secure the tape storage sheave assembly with retaining ring
(23). Use washer (44) and shim
washers
(45) as required.
34. Test that the sheave turns freely with less than 0.005” axial play for the Standard 2500 ATG
and no axial play for models with crank or cassette.
35. Secure the motor storage sheave assembly
(48) with retaining ring (23). Use washer (44) and
shim washers
(45) as required. Test that sheave turns freely with 0.005" to 0.010” axial play.
36. Attach the spring motor to the tape storage sheave assembly and tighten screw
(Fig. 3-1, item
7)
. Make sure the spring motor is not twisted out of alignment during screw tightening.
37. Refer to Chapter 3, Installation — section on page 36 for winding the motor.
38. Open elbow sheave assemblies and inspect operation and condition. Replace cover gasket,
defective sheaves and worn shafts as required. Lubricate the shaft and sheave with a light
oil. To reinstall the tape or tape/cable, refer to Chapter 3, Installation — section on page
30 through section on page 34.
39. Proceed to “Counter Wheel Assembly” on page 66.