[Type text]
2851-252-00
2
9/2016
Specifications Information and Repair Parts Manual
2851,2852,2853,2855,2856,2857,285E,285F,285G,285H,285J,285K,285M,& 285P
x
Self-Priming Centrifugal Pumps
Figure 1- Mechanical Seal Replacement
SHIM ADJUSTMENT
When installing a replacement impeller (Ref. No. 9) or motor (Ref. No.
1), it may be necessary to adjust the number of shims (Ref. No. 8) to
ensure proper running clearance between the impeller and the casing.
Proceed as follow
NOTE:
A proper running clearance is less than 0.010.
1.
For impeller replacement, add one (1) shim in addition to the
one (1) removed originally.
2.
For motor replacement, add two (2) shims in addition to the
shims removed during disassembly.
3.
Reassemble
the
pump
using
MECHANICAL
SEAL
REPLACEMENT for reference.
IMPORTANT:
Be sure that the casing is snugly in place and check the
shaft to make sure it is turning freely (use the screwdriver slot in the
motor to turn the shaft). If it turns freely, check to ensure that the
casing cover and casing are fitted "metal to metal" where they meet on
the outside. If they are not "metal to metal", tighten the fasteners (Ref.
No. 3) and recheck the shaft for free turning.
Tighten carefully turning the shaft while tightening so that the motor
bearings are not damaged in the event that too many shims were
installed. If the shaft seizes before fasteners are completely tight,
disassemble the pump and remove one (1) shim and repeat
reassembly.
Figure 2- Models 2856, 2857, 285A, 285M, 285B,
285C, 285D, 285J, 285K, 285P
Содержание 2852-95
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