Gorman-Rupp Pumps 86A2-F3L 1330589 and up - Manual (Page 29)

OM−00955 80 SERIES
MAINTENANCE & REPAIR PAGE E − 9
age to equipment. The bail is intended
for use in lifting the pump assembly
only. Suction and discharge hoses and
piping must be removed from the pump
before lifting.
Inspect the wear plate (38), and replace if scored or
worn. To remove the wear plate, disengage the
hardware (40 and 41) from the wear plate studs,
and pull the wear plate from the pump casing.
Impeller Removal
(Figure 2)
Before removing the impeller, turn the cross arm on
the automatic lubricating grease cup (18) clock-
wise until it rests against the cover (see Figure 5 in
LUBRICATION). This will prevent the grease in the
cup from escaping when the impeller is removed.
Unscrew the impeller in a counterclockwise direc-
tion (when facing the impeller). Use caution when
removing the impeller; tension on the seal spring
will be released as the impeller is unscrewed.
Inspect the impeller and replace it if cracked or
badly worn. Slide the impeller adjusting shims (13)
off the shaft. For ease of reassembly, tie and tag the
shims or measure and record their thickness.
Seal Removal
(Figure 2)
Make certain that the cross arm on the grease cup
has been turned down against the cover before re-
moving the seal assembly.
For ease of disassembly, the seal and seal plate
(36) may be removed as a single unit. Before at-
tempting to remove the seal plate, remove the au-
tomatic grease cup and piping (16, 17 and 18).
Remove the seal washer (15) and outer rotating
element. Slide the seal plate, spacer sleeve, and
remaining seal parts off the shaft as a unit.
Position the seal plate on a clean work surface and
use a suitably sized dowel to press the seal parts
out of the seal plate from the back side.
Inspect the seal liner (14) for wear or grooves that
could cause leakage or damage to the seal pack-
ing rings. The seal liner is secured by a press fit into
the seal plate and does not normally require re-
placement. If replacement is required, see Seal In-
stallation.
If no further disassembly is required, refer to Seal
Installation.
Shaft and Bearing Removal and Disassembly
(Figure 2)
When the pump is properly operated and main-
tained, the intermediate should not require disas-
sembly. Disassemble the shaft and bearings only
when there is evidence of wear or damage.
Shaft and bearing disassembly in the field
is not recommended. These operations
should be performed only in a properly
equipped shop by qualified personnel.
Disengage the hardware (22 and 23), and remove
the bearing cap (28) and shims (30). Tie and tag
the bearing shims, or measure and record their
thickness for ease of reassembly.
Remove the outboard bearing cup (26) from the
bearing cone (27).
Place a block of wood against the impeller end of
the shaft (24), and tap the shaft and assembled
bearings from the intermediate. Be careful not to
damage the shaft.
NOTE
There are no provisions for draining the grease
from the intermediate cavity. Place a drip pan under
the intermediate before removing the shaft and
bearings.
Use a suitably sized dowel and an arbor (or hy-
draulic) press to remove the bearing closure (33)
and inboard bearing cup (31) from the intermedi-
ate.
After removing the shaft and bearings, clean and
inspect the bearings in place as follows.
To prevent damage during removal from