Base Plate Setting Before Piping | AC International 8200 Series

BASE PLATE SETTING (BEFORE PIPING)

NOTE: This procedure assumes that a concrete foundation has been prepared with anchor or hold down bolts extending up ready to receive unit. It must be understood that pump and motor have been mounted and rough aligned at the factory. If motor is to be field mounted, consult factory for recommendations. ITT AC Fire Pump Systems cannot assume responsibility for final alignment.

operator). Final alignment procedures are covered under “Alignment Procedures.”

e.Check to make sure the piping can be aligned to the pump flanges without placing pipe strain on either flange.

f.Grout in base plate completely (See “Grouting Procedure”) and allow grout to dry thoroughly before attaching piping to pump. (24 hours is sufficient time with approved grouting procedure.)

GROUTING PROCEDURE

ALLOW 1" FOR

SHIMS. PLACE ON

BOTH SIDES OF

ANCHOR BOLTS.

APPROX. 1" GAP

NOTE:

TO KEEP SHIMS IN PLACE ALLOW GROUT TO FLOW AROUND HOLD DOWN LUGS.

GROUT ONLY TO TOP OF BASE RAIL.

PUMP BASE

RAIL

GROUT

CONCRETE

FOUNDATION

Grout compensates for uneven foundation, distributes weight of unit, and prevents shifting. Use an approved, non-shrinking grout, after setting and leveling unit (See Figure 6).

a. Build strong form around the foundation to

contain grout.

b. Soak top of concrete foundation

thoroughly, then remove surface water.

c. Base plate should be completely filled with

grout.

LEVELING OF PUMP BASE

ON CONCRETE FOUNDATION.

FIGURE 6 – SETTING BASE PLATE AND

GROUTING

a.Use blocks and shims under base for support at anchor bolts and midway between bolts, to position base approximately 1" above the concrete foundation, with studs extending through holes in the base plate.

b.By adding or removing shims under the base, level and plumb the pump shaft and flanges. The base plate does not have to be level.

c.Draw anchor nuts tight against base, and observe pump and motor shafts or coupling hubs for alignment. (Temporarily remove coupling guard for checking alignment.)

d.If alignment needs improvement, add shims or wedges at appropriate positions under base, so that retightening of anchor nuts will shift shafts into closer alignment. Repeat this procedure until a reasonable alignment is reached.

NOTE: Reasonable alignment is defined as that which is mutually agreed upon by pump contractor and the accepting facility (final

d. After the grout has thoroughly hardened,

check the foundation bolts and tighten if

necessary.

e. Check the alignment after the foundation

bolts are tightened.

f. Approximately 14 days after the grout has

been poured or when the grout has

thoroughly dried, apply an oil base paint to

the exposed edges of the grout to prevent

air and moisture from coming in contact

with the grout.

SEE ANSI/OSHA COUPLER GUARD REMOVAL/INSTALLATION

(SEE BELOW)

ALIGNMENT PROCEDURE

NOTE: A flexible coupling will only compensate for small amounts of misalignment. Permissible misalignment will vary with the make of coupling. Consult coupling manufacturer’s data when in doubt.

Allowances are to be made for thermal expansion during cold alignment, so that the coupling will be aligned at operating temperature. In all cases, a coupling must be in alignment for continuous operation. Even though the coupling may be lubricated, misalignment causes excessive wear,

8200 Series specifications

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