Gorman-Rupp Pumps PA10A60-4045H 1484416 and up - Manual (Page 34)

PA SERIES OM−06344
MAINTENANCE & REPAIR PAGE E − 14
not to damage the pump, and so that the
load will be balanced.
Use only replacement parts provided or
approved by Gorman-Rupp. Use of non-
authorized parts may result in damage to
the equipment and/or injury to personnel
and will invalidate the warranty.
Priming Chamber Removal And Disassembly
(Figure 5)
Disconnect the air discharge tubing from the prim-
ing chamber assembly (1). Support the priming
chamber assembly using a sling and a suitable lift-
ing device. Remove the hardware (6 and 7) and
separate the priming chamber assembly, gasket
(8) and baffle (9) from the spool (8, Figure 3).
(Figure 6)
Remove the hardware (2 and 3) securing the prim-
ing valve (1) to the priming chamber (5). Carefully
lift the valve components from the priming cham-
ber. Remove the gasket (4) and clean the mating
surfaces.
If the priming valve float is stuck or the strainer (6) is
clogged, it can usually be cleaned without further
disassembly.
The only serviceable part of the priming valve is the
orifice button (not shown). If liquid continues to by-
pass through the priming chamber after adjusting
the orifice button (see Priming Chamber Reas-
sembly and Installation for adjustment), the but-
ton may require replacement. To replace the orifice
button, remove one of the e-clips" from the pivot
pin closest to the orifice button and remove the piv-
ot pin. This will allow the linkage to be raised high
enough to access the orifice button.
Remove the hex nut and lockwasher securing the
orifice button to the linkage bar and unscrew the
orifice button from the linkage bar.
Discharge Check Valve Removal and
Disassembly
(Figure 3)
Support the discharge check valve assembly us-
ing a sling and a suitable lifting device. Remove the
hardware securing the discharge check valve as-
sembly and gasket to the piping.
The flapper and cover gasket are the only service-
able parts of the check valve. If the flapper requires
replacement, remove the hardware securing the
cover and gasket. Separate the cover and remove
the flapper.
Suction Spool Flange Removal
(Figure 3)
Before attempting to disassemble the pump, re-
move the lowermost pipe plug (30, Figure 4) from
the pump casing and drain the pump. Clean and
reinstall the pipe plug.
Disconnect the suction piping from the suction
spool flange (8).
Support the suction spool flange using a suitable
hoist and sling. Disengage the hardware (not
shown) securing the suction spool flange to the
base.
Use lifting and moving equipment in
good repair and with adequate capacity
to prevent injuries to personnel or dam-
age to equipment. If slings or chains are
used to move the pump or components,
make sure that the load is balanced;
otherwise serious personal injury or
death could result. Suction and dis-
charge hoses and piping must be re-
moved from the pump before lifting.
Remove the hardware (5) and separate the suction
spool flange and gasket (4) from the pump.
Suction Head And Wear Ring Removal
(Figure 4)
Support the suction head (34) using a suitable
hoist and sling.