Table 6-7: impeller specifications, Installation notes, Rear wear ring – Hale SMR User Manual
Page 90: Inspection
Maintenance and Repair
6-12
Stainless Max Series Pumps
Installation Notes
To install, follow the preceding instructions in the reverse order,
paying attention to the following:
❑
Review preceding section “Before You Begin...,” beginning on
page 6-1.
❑
Pay attention to section “Cleaning and Inspection Guidelines,”
beginning on page 6-6 to ensure a thorough installation.
❑
Install the impeller shaft key into the slot on the pump shaft.
❑
Carefully slide the impeller over the pump shaft, aligning the
keyway with the impeller key.
❑
Make sure the “new” lock washers are installed with the
locking ridges facing each other.
❑
Torqued the impeller nut to 295 ft.-lb. (400 N-m).
Rear Wear Ring
See Figure 6-4: “Stainless Max Pump Breakdown” on page 6-9.
1. First, review preceding section “Before You Begin...,” beginning
on page 6-1.
2. Remove the front clearance ring and the impeller as described in
the previous sections, beginning on page 6-8. The rear wear ring
and mechanical seal assembly are now exposed.
3. Remove the six M8 socket head screws securing the rear clear-
ance ring to the pump rear cover plate.
Inspection
See Figures 6-3: “Critical Dimensions” on page 6-2, and Figure
6-8: “Wear Ring Measurements” on page 6-13.
Table 6-7: Impeller Specifications
Front (A)
new/limit
Rear (B)
new/limit
.
7
-
"
6
4
3
.
7
"
8
4
3
)
m
m
5
6
.
6
8
1
-
6
.
6
8
1
(
7
.
5
8
1
(
"
1
3
.
7
)
m
m
.
7
-
"
6
3
2
.
7
"
0
4
2
)
m
m
9
.
3
8
1
-
8
.
3
8
1
(
2
.
4
8
1
(
"
5
2
.
7
)
m
m