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(I-0320--.doc/8)
8
2. Controller address (I-0168 Section J).
3. Control room MODBUS RTU operation (I-0168 Section D).
4. Installation and use of Bettis Multiport Electronic Controller software on laptop PC.
IV
MULTIPORT MAINTENANCE
Refer to the typical multiport assembly drawing AB0461 on page 14 and the multiport cutaway drawing
AB0462 on page 15.
The Multiport Flow Selector is shipped completely greased and lubricated, but it is recommended that the
unit be checked prior to operation if it has been stored for more than one year. If required, lubricate with a
suitable injection lubricant (Sealweld D-1014 is recommended).
1. Check speed reducer oil at regular intervals and change the oil each one hundred running hours or
once a year, whichever comes first. Use a suitable synthetic gear oil (Mobil Synthetic SHC-634
ISO VG460 lubricant is recommended).
2. Make sure the oil in the speed reducer (426) is at the indicated level.
NOTE:Excessive oil could cause pressure build-up, leakage and overheating which will result in
rapid wear of the oil seals, bearing and gears.
3. Lubricate bearing (160) through grease nipple every six months, or as needed. Use Dow Corning
Extreme High Temp #41 grease or a suitable equivalent.
4. Do not lubricate the motor: it is a sealed unit
.
5. Monitor seals annually, adjusting if required (see section V
-D. below) and replace seals every five
years or when leakage occurs.
V
MULTIPORT ASSEMBLY
Refer to the typical multiport assembly drawing AB0461 on page 14 and the multiport cutaway drawing
AB0462 on page 15.
Ensure all parts are clean and in good condition before assembling the Multiport Flow Selector. Use ESSO
Valve Grease No. 1 or a suitable equivalent to lubricate the components.
A. BODY: (110)
1. Visually inspect all internal and external surfaces and threads.
2. Lubricate and install the 25% C/PTFE bushing (120) into the lower section of the body.
B. PLUG: (130)
1. Lubricate and install the lower plug o-ring (133), with the correct number of PTFE backup rings
(136). For ANSI 300/600 rated Multiports, install one PTFE backup ring above (on the side
nearest to the bonnet) the o-ring. For ANSI 900/1500 rated Multiports, install two PTFE backup
rings - one on either side of the lower plug o-ring.
2. Lubricate and install the seal adjusting nut (138) by turning it clockwise (ie. viewing toward the
plug centerline) until solid. Follow with the seal wave springs (140). Ensure that the seal wave
springs are properly aligned and seated on the seal adjusting nut.