Xylem P81875F Series HSC and HSC-S Centrifugal Pump - Manual (Page 7)

7
11. ANSI/OSHA COUPLER GUARD
REMOVAL/INSTALLATION
NOTE: Do not spread the inner and outer guards more than
necessary for guard removal or installation. Over spreading the
guards may alter their fit and appearance.
Removal
a. Remove the two capscrews that hold the outer (motor side)
coupler guard to the support bracket(s).
b. Spread the outer guard and pull it off the inner guard.
c. Remove the capscrew that holds the inner guard to the
support bracket.
d. Spread the inner guard and pull it over the coupler.
Installation
a. Check coupler alignment before proceeding. Correct if
necessary.
b. Spread the inner guard and place it over the coupler.
c. With the inner guard straddling the support bracket, install a
capscrew through the hole (or slot) in the support bracket
and guard located closest to the pump. Do not tighten the
capscrew.
d. Spread the outer guard and place it over the inner guard.
e. Install the outer guard capscrews by following the step
stated below which pertains to your particular pump:
i. For pumps with a motor saddle support bracket: Ensure
the outer guard is straddling the support arm, and install
but do not tighten the two remaining capscrews.
ii. For pumps without a motor saddle support bracket:
Insert the spacer washer between the holes located
closest to the motor in the outer guard, and install, but
do not tighten, the two remaining capscrews.
f. Position the outer guard so it is centered around the shaft,
and so there is less than a 1/4" of the motor shaft exposed.
On guards that utilize a slotted support bracket, the inner
guard will have to be positioned so there is only a 1/4" of
the pump shaft exposed.
g. Holding the guard in this position, tighten the three
capscrews.
WARNING: Unexpected Start-up Hazard
Disconnect and lock out power before servicing.
Failure to follow these instructions could result in serious
personal injury or death and property damage.
INNER GUARD
ATTACH SUPPORT BRACKET
TO BEARING HOUSING
THIS OPTION USED IN PLACE OF SPACER WHERE
OVERALL LENGTH OF GUARD EXCEEDS 12 INCHES
OR GUARD WIDTH IS OVER 10 INCHES ACROSS
THE FLATS.
OUTER GUARD
NUT
LOCKWASHER
LOCATE SUPPORT ARM
BETWEEN OUTER GUARD ENDS.
ALIGN THE ARM WITH HOLES IN
THE OUTER GUARD AND HOLES IN
THE SADDLE BRACKET.
BRACKET SUPPORT
CAPSCREW
FLAT WASHER
BRACKET SUPPORT
ATTACHES INSIDE HERE
IN LINE WITH BOLT
MOTOR SADDLE BRACKET
ATTACH TO MOTOR SADDLE
SPACER WASHER
SUPPORT BRACKET
ANSI/OSHA Coupling Guard Exploded View
for Typical Series HSC and HSC-S Pump Installation