Goulds Pumps NM 3196 i-FRAME - IOM - Manual (Page 94)

2. Slide the C-face adapter over the pump shaft and mount it against the bearing-frame flange using four
bolts.
3. Mount the motor to the C-face adapter using either four or eight motor bolts.
This table contains the motor-bolt torque values for assembling the C-face adapter to a frame.
Table 15: Motor-bolt torque values for C-face adapter to frame
Frame Lubricated threads Dry threads
STi 20 ft-lb (27 Nm) 30 ft-lb (41 Nm)
MTi 20 ft-lb (27 Nm) 30 ft-lb (41 Nm)
This table contains the motor-bolt torque values for assembling the C-face adapter to a motor.
Table 16: Motor-bolt torque values for C-face adapter to motor
Frame Lubricated threads Dry threads
143TC-145TC 8 ft-lb (11 Nm) 12 ft-lb (16 Nm)
182TC-286TC 20 ft-lb (27 Nm) 30 ft-lb (41 Nm)
324TC-365TC 39 ft-lb (53 Nm) 59 ft-lb (80 Nm)
Shaft sealing
WARNING:
The mechanical seal used in an Ex-classified environment must be properly certified. Prior to startup,
make sure that all areas that could leak pumped fluid to the work environment are closed.
Methods for sealing the shaft
These sections discuss the methods that you can use to seal the shaft.
• Seal the shaft with a dynamic seal.
• Seal the shaft with a cartridge-mechanical seal.
• Seal the shaft with a conventional inside-component mechanical seal.
• Seal the shaft with a conventional outside-component mechanical seal.
• Seal the shaft with a packed stuffing box.
Seal the shaft with a cartridge mechanical seal
WARNING:
The mechanical seal used in an Ex-classified environment must be properly certified. Prior to startup,
make sure that all areas that could leak pumped fluid to the work environment are closed.
NOTICE:
The mechanical seal must have an appropriate seal-flush system. Otherwise, excess heat generation and
seal failure can occur.
1. Slide the cartridge seal onto the shaft or sleeve until it contacts the inboard labyrinth oil seal.
2. Assemble the seal chamber.
3. Slide the cartridge seal into the seal chamber and secure using the four studs and nuts.
4. Continue with the pump reassembly.
5. Set the impeller clearance.
Refer to the Impeller clearance setting topic for more information.
6. Tighten the setscrews in the seal locking ring in order to secure the seal to the shaft.
7. Remove the centering clips from the seal.
Maintenance
92 Model NM 3196 i-FRAME Installation, Operation, and Maintenance Manual