©Copyright Task Force Tips LLC 2021
18
LIX-575 June 24, 2021 Rev00
1. Find the desired valve configuration number in Table 7.6. With the valve on a workbench, examine it and make changes as
needed according to the following steps. Any step may be skipped if that aspect of the desired configuration already matches the
physical unit. Refer to Figure 8.2A to identify the components of the valve and gearbox.
2. Find the number listed under “
REED SWITCH
” in the desired row of the table. Configuration # _____. If this
does not match
the
reed switch location on the gearbox:
A. Using a 7/16” wrench, rotate the driveshaft until the trunnion arrow points towards the number 2 position.
B. Change the screw location using a 13 mm wrench for the reed switch nut and a 6 mm hex driver for the 2 plug screws. The
nuts are permanently adhered to the reed switch, so it is not necessary to adjust the switch.
C. Apply blue Loctite sparingly to the reed switch and 2 plug screws. Install in locations per Table 7.6 and torque these three
items to 110 in-lb.
3. Find the numbers listed under “
TRAVEL STOP...
” in the desired row of the table. Configuration # _____. If these numbers
do not
match
the locations of set screws with nuts on sides of the gearbox:
A. Using a 7/16” wrench, rotate the driveshaft until the trunnion arrow points towards the number listed under “Reed switch and
trunnion arrow…”.
B. Referring to Figure 8.2B, remove retaining ring, sprocket, thrust washer and key. Avoid overstretching the retaining ring.
C. Change the screw locations using a 13 mm wrench for the nuts and a 6 mm hex driver for the 2 plug screws. The nuts are
permanently adhered to the set screws, so it is not necessary to adjust the screws. Apply blue Loctite sparingly to all screws
and torque to 110 in-lb.
D. Reinstall the sprocket and thrust washer over the shaft and key, then install retaining ring.
4. Find the letter listed under “
REFERENCE ARROW...
” in the desired row of the table. Configuration # _____. If this letter
does not
match
the letter embossed on the valve body port nearest the REFERENCE arrow on the gearbox:
A. Using a 7/16” wrench, rotate the driveshaft until the trunnion arrow points towards the number listed under “Reed switch and
trunnion arrow…”.
B. Remove the four gearbox mounting screws using a 5/16” hex driver, then rotate the gearbox until the REFERENCE ARROW
points towards the letter from the table. If resistance is encountered, rotate the opposite direction instead to avoid valve seat
friction. Relocate the gearbox by rotating the gearbox only, do not remove and reorient the gearbox.
C. Apply blue Loctite sparingly to the four screws, then reinstall them and torque to 200 in-lb.
5. Find the letters listed under “
BLIND PLUGS...
” in the desired row of the table. Configuration # _____. If these letters
do not
match
the current port locations of the blind plugs:
A. Verify bore and thread of the unused port are clean and dry. Clean with acetone if needed.
B. Using a 1/8” hex driver, remove set screw from cross-holes of port that does not match.
C. Using a ½” square drive socket wrench (no socket installed), remove the blind plug and install it in the desired port until it
bottoms out snugly.
D. Apply blue Loctite sparingly to the set screw. Install in port cross-hole and torque to 56 in-lb.
6.
Note - this step is rarely needed.
Find the number listed under “
SOLENOID...
” in the desired row of the table. Configuration #
_____. If this
does not match
the solenoid location on the gearbox:
A. Referring to Figure 8.2B, remove retaining ring, sprocket, thrust washer and key. Avoid overstretching the retaining ring.
B. Using 6 mm hex driver, remove 3 screws from solenoid bracket, then remove bracket.
C. Remove a 2nd retaining ring, then push the shaft out of the gearbox. When resistance is encountered, twist the shaft until it
continues to push through.
D. Remove the shaft bushings from each side of the gearbox shaft bore, then install them in the opposite sides of the gearbox.
E. Verify a key is seated firmly in the shaft midway down the length. Slide the shaft into the opposite side of the gearbox. When
resistance is encountered, twist the shaft until it continues to push through. This may occur twice before the shaft is all the
way through.
F. Reinstall retaining ring and key on shaft, immediately adjacent to the gearbox.
G. Reinstall the solenoid bracket on the same side as the key. Apply blue Loctite sparingly to 3 screws and torque to 110 in-lb.
H. Reinstall the sprocket and thrust washer over the shaft and key, then install retaining ring.
NOTICE
Do not exceed 10 ft-lb / 13.5 N-m torque to the valve driveshaft (60 lb / 27 kg applied to the knob of a
4" hand wheel). Excessive torque may damage the driveshaft and render the valve inoperable.
