GORMAN-RUPP PA6D60-4045T, Инструкция по установке, эксплуатации и обслуживанию, Страница: 36 / 46

PA SERIES OM-06622
MAINTENANCE & REPAIR PAGE E - 16
moved from the pump before lifting. Lift
the pump or component only as high as
necessary and keep personnel away
from suspended objects.
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 6)
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 suction spool (5, Figure
4).
(Figure 7)
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 lock washer 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)
Remove the hardware (not shown) securing the
discharge check valve bracket to the base.
Support the discharge check valve (3) using a sling
and a suitable lifting device. Remove the hardware
(4, 5, 6 and 8) and separate the discharge check
valve assembly and gasket (7) from the pump as­
sembly (1).
The flapper and gasket are the only serviceable
parts of the check valve. If the flapper requires re­
placement, remove the hardware securing the
cover and gasket. Separate the valve cap and re­
move the flapper.
Suction Spool and Wear Plate Removal
(Figure 4)
The wear plate (3) is easily accessible and may be
serviced by removing the suction spool (2). Before
attempting to service the pump, remove the pump
casing drain plug (4) and drain the pump. Clean
and reinstall the drain plug.
Support the suction spool using a suitable hoist
and sling.
Remove the back cover nuts (19). Remove the se­
curing hardware (11 and 21), adjusting screws
(18) and locking collars (20) from the studs (17).
Pry the suction spool and assembled wear plate
from the pump casing (1).
NOTE
An alternate method of removing the suction spool
from the pump casing is to remove the back cover
nuts (19) and two diagonally opposing locking col­
lars (20). Use the adjusting screws (18) to press the
suction spool out of the pump casing.
Inspect the wear plate for excessive wear or scor­
ing. If replacement is required, or if the O‐rings (13
and 14) require replacement, remove the hard­
ware (15 and 16) and separate the wear plate from
the suction spool.
Remove and discard the O‐rings (6A, 13 and 14).