Xylem IM174 User Manual

Instructions for changing a grinder pump cutter / cutter ring.

IM174R00

120°

150°

1. Thread impeller onto motor shaft and hand tighten holding the shaft with
screwdriver.

2. Thread cutter onto shaft and seat on impeller – do not tighten.

3. Check for alignment of the cutter to the impeller (per Picture).
Remove cutter and shim as necessary to align cutter blades with impeller
vanes (per Table and/or Template). Use screwdriver to hold shaft and
tighten cutter by tapping with plastic hammer.

4. Place casing on bearing housing and locate discharge opposite cord set
entry, secure w/ cap screws.

5. Check cutter to cutter ring clearance using .002” shim stock.
Adjust casing position with plastic hammer to ensure cutter
rotates freely. as ALIGN

6. Run dry for 10 seconds and recheck cutter to cutter ring clearance as

performed above.

SHIM

ANGLE OFFSET

(DEG.)

SHIM THICKNESS

(IN.)

0 - 30°

NO SHIM

BLUE

30 - 60°

.005”

BROWN

60 - 90°

.010”

PINK

90 - 120°

.015”

YELLOW

120 - 150°

.020”