1250E & 1500E Electric Pump
Operating Manual
CP/MAN-PRD-1215E REV. 02 EFF. DATE: 12/15/12 Page 10 of 13
11. PACKING ADJUSTMENT
11.1. Packing adjustment is usually indicated whenever adjustable packing is installed in the pump and
leakage can be observed around the packing nut or coming out of the weep hole drilled through
the packing nut. In most cases, if there is no leakage, no adjustment is necessary.
11.2. Use a CheckPoint T55-101 packing adjuster, which is specifically designed for this purpose. If one
is not available, you may order one at no charge directly from CheckPoint. In an emergency or if
time is short, a 6” length of ¼” OD tubing or metal rod may be used.
11.3. Packing should generally be adjusted while pump is running if it is already in service.
11.4. To tighten the packing, insert the tool into one of the six shallow radial holes in the packing nut
(Packing Nut is shown as #3 in Figure 5 at the end of this Manual), and tighten the nut clockwise
(when looking at the pump from above. Snug the nut until light pressure with one finger on the
packing nut tool no longer moves the packing nut.
11.5. From this point, TIGHTEN THE NUT 1/8 TURN ONLY as follows:
11.5.1. If adjusting the packing while pump is operating, pause after each 1/8 turn to determine if the
leakage has stopped, allowing for enough time to ensure previous leakage has already
drained from the nut weep holes and threads. If pump is still leaking, turn packing nut an
additional 1/8 turn and check again. Continue turning the nut 1/8 turn at a time as often as
necessary to stop the leakage. If the leakage cannot be stopped, or if excessive force is
required to stop leakage, it is time to replace the packing.
11.5.2. If adjusting the packing prior to new installation or when not currently running, tighten the nut
1/8 turn from the finger tight position.
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