14
3. For pumps with motors 3 HP (2.2 kW) or larger, place the pump and motor on
the floor. Remove the (4) bolts, lock washers and flat washers (items 35, 36, 37)
securing the pump to the motor. See figure 9. Make sure the motor is on the
fan end with the pump facing up. Pull straight up to remove the pump from the
motor. See figure 12.
4. Place pump on bench with housing facing up. Remove (8) 10 mm housing bolts,
lock washers and flat washers (items 19, 20, 21). See figure 13.
5. Pull housing (item 1) straight up to remove. Inspect housing for signs of wear or damage. Look for signs of rubbing, cracking on
thrust ring, or damage to front shaft support and shaft. See figure 14.
6. Remove first stage impeller (item 2). Grip the impeller by hand or the use of small pry bars may be necessary. Impeller is pressed on
to the end of the drive shaft and can be simply pulled straight off.
Gently pry off the impeller followed by the diffuser assembly (item 3). See figures 15 & 16.
Figure 13
Figure 12
Figure 14
Figure 15
Figure 16
