Goulds Pumps VIT - IOM - Manual (Page 29)

Final adjustment of the stuffing box must be made at pump start up. This final adjustment applies to all
stuffing box styles. A properly packed stuffing box needs to be loose enough to allow you to turn the shaft.
Install the type C stuffing box
The style C stuffing box is provided with a shaft sleeve, O-ring, lantern ring, and grease cup.
1. Lubricate the O-ring and the shaft threads.
2. Slip the sleeve onto the shaft and carefully rotate counterclockwise while you gently push down until
the O-ring is clear of the shaft threads.
3. Locate the sleeve on the shaft and secure it with setscrews.
4. If the packing washer is provided, insert it into the stuffing box.
The packing washer is not required on shaft sizes 2.19 in. (55.63 mm) and larger.
5. Grease the packing rings for easier installation.
6. Install the packing rings:
a) Twist each of the five packing rings sideways in order to get them around the shaft easily.
You can set the sixth ring aside until the packing is adjusted for leakage after the first startup.
b) Start the first ring into the stuffing box.
c) Use your fingers to position the entire ring in the stuffing box.
d) Tap each ring down using a split wooden bushing and push the packing ring down firmly until it
seals on the shaft and bore of the stuffing box.
e) Stagger the ring joints 90° apart.
You can use the split gland as a tamper for the top ring.
f) Insert the lantern ring into the stuffing box so that it aligns with the lubrication passage in the
stuffing box.
g) Install two packing rings and stagger the ring joints 90° apart.
7. Install the split gland and thread the nuts on the split gland studs.
8. Finger-tighten the nuts.
9. Attach a bypass line to the tube fitting in the stuffing box.
10. Grease the stuffing box:
a) Thread a grease cup into the stuffing box.
b) Fill the grease cup with a high grade of grease.
c) After the stuffing box is completely assembled, apply grease to the lantern ring by turning the grease-
cup cap several turns.
Final adjustment of the stuffing box must be made at pump start up. This final adjustment applies to all
stuffing box styles. A properly packed stuffing box needs to be loose enough to allow you to freely turn
the shaft.
Mechanical seal options
Pumps are shipped without mechanical seals installed. If they are not, then refer to the mechanical seal
manufacturer's installation instructions.
These are the mechanical seal options for this pump:
• Cartridge mechanical seal
• Conventional inside component mechanical seal
• Conventional outside component mechanical seal
• High-pressure seal
• Dual mechanical seal
Installation (Continued)
Model VIT Installation, Operation, and Maintenance 27