Xylem G&L A-C 8300 Series Instruction Manual page 40

6 Maintenance
10.Press the stationary mechanical seal seats into both of the gland plates. Lightly
lubricate the gland plates to ease assembly. See photo below.
11.Press new lip seals into the gland plates. Before installing the lip seals, lubricate the lip
seals with lightweight oil.
NOTE: Lip seals should sit against the machined shoulder in the gland plates. The lip
seals should face away from the mechanical seal set. See photo below.
12.Lubricate and roll the O-rings into the grooves in each of the gland plate.
13.Press the gland plates into the stuffing boxes and secure using the socket-head
capscrews.
NOTE: Because of the compression of the O-ring, it may be difficult to press the O-ring
into the stuffing box. Use longer socket-head capscrews to start the gland plate into
the stuffing box. To prevent the mechanical seal spring from pushing the gland plate
back out of the stuffing box, remove one long socket-head capscrews at time and
replace with a regular socket-head capscrew.
14.Lubricate and roll the O-rings into the groove in each stuffing box.
NOTE: At this point reassemble the rotating element by starting on the outboard end
first (the end opposite the coupling) as this end locates the settings of the mechanical
seal.
IMPORTANT: Steps 11 through 21 must be completed, on the outboard end, within 10
to 12 minutes to assure proper placement of the mechanical seals.
15.Lightly coat the outboard end of the pump shaft with P-80 Rubber Lubricant Emulsion,
vegetable oil, Or equal and slide the mechanical seal head onto the shaft) See photo
below.
38 G&L Pumps Series A-C 8300 Base Mounted Centrifugal Pump INSTRUCTION MANUAL