AMT 3890-99, Спецификация, информация и руководство по ремонту запасных частей, Страница: 2 / 4

Specifications Information and Repair Parts Manual
3890-99 & 3891-99
3890-254-00 2 2/2015
Solids-Handling Pedestal Pumps
MAINTENANCE
Disconnect from power source before servicing or inspecting the pump
for any reason.
BEARING HOUSING SERVICE
1. Remove pump head assembly (See pump manual “Maintenance”)
2. Remove the shaft bearings (Ref. No. 3) and shaft (Ref. No. 4) as an
assembly by first removing the snap ring (Ref. No. 6) and wave washer
(Ref. No. 5).
3. Push the shaft/bearing assembly out of the bearing housing (Ref. No. 2)
by rapping on the pump end of shaft with soft mallet or block of wood and
a hammer.
4. The shaft bearings can now be removed from the shaft.
5. If shaft bearings have been removed from shaft and bearing housing,
replace by sliding bearing or shaft to shoulder.
6. Replace shaft bearing assembly by sliding assembly into housing, pump
end first. Push shaft bearing assembly completely in by gently tapping on
keyway end of shaft with soft mallet.
7. Replace wave washer and snap ring.
8. Reassemble pump to pedestal (See pump manual “Maintenance”).
Model AH AK BA BB BC D E ET F H1/H2 U1 U2 V Keyway
3890-99 2.56 4.50 0.50 0.16 5.88 4.25 2.25 N/A 3.00 0.50 3/4” 5/8” 1.97 3/16”x3/16”x1”
3891-99 2.56 4.50 0.50 0.16 5.88 4.25 2.25 1.87 3.00 0.50 3/4” 5/8” 1.97 3/16”x3/16”x1”
NOTE: All dimensions have a tolerance of +/- 1/8”
DIMENSIONS (inches)
Figure 1 - 3890-99 Dimensions
Figure 1 - 3891-99 Dimensions