Graco EM 490 Instructions-Parts List Manual page 18

REMOVING and REPLACING CONNECTING ROD end BEARING
screw8 (19) end cover (36). Remove the two screws end
Remove pump as described on page
18.
Remove the six
lockwashem (20 end 181. Remove the bearing (63) and
connecting rod
154).
sliding the connecting rod off the
crankshaft. See Fig 17.
and remove the pin (34) from the coupling (38). Remove
Use e
screwdriver to push the retaining spring (33) aside
the coupling from the connecting rod.
Pull the connecting rod out of the bearing. Wipe clean
ing end connecting rod link for weer or damage. If either
(don't use solvent) end inspect the surfaces of the beer-
needs replacing, replace both. When installing the-rod
and bearing, coat the surfaces with SA€ 10 non-
detergentmotor oil.
reg; do not use solvent. If the crankshaft is badly worn,
Clean and inspect the crankshaft. Wipe clean with
a
replace the drive assembly
( 5 5 1
as described on page 19.
Clean end inspect the connecting rod needle bearing.
Repack the bearing with industrial grade, heavy duty,
extreme pressure lithium soap grease.
NOTE:
After every 100 hours of operation, or
whenever servicing the pump (whichever
comes first), fill the cavity in the connecting
rod (541
with SAE 10 nondetargant motor
oil.
Assemble the new rod end bearing, being sure to push
the spring (33) down in place over the pin (34) ends, end
install in the revem order of removal.
Fig 17
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18
307-735