JS AND JSV SERIES PUMPS
OM−03833
FM
APPROVED
PAGE C − 4
OPERATION
casing) are the lubrication plugs. The up-
per plug in the motor housing is used for
testing
only;
do not
add oil through this
plug.
Before installing or removing the lubrication screw
plugs, always clean the area around the plugs to
prevent contamination of the oil.
If the lubrication plugs are removed, discard the
plug O-rings. Lubricate the new O-rings with oil -
not
grease
- before reinstalling the plugs
.
Draining Oil
Lay the pump flat on a work surface with one of the
lubrication screw plugs facing up. Remove the
plug slowly to release any pressure in the seal
housing.
Place a clean container under the other (lower)
plug. Remove the plug, and roll the pump on its
side to drain the seal housing.
Condition Of Oil
Check the condition of the oil drained from the
pump. Clear oil indicates that the pump seal(s) are
functioning properly. If the oil is milky or contains
a small amount of water, it must be changed.
If the oil contains a large amount of water, it must
be changed, and the seal(s) must be checked be-
fore the pump is put back in operation (refer to the
Maintenance and Repair Manual).
Adding Oil
Remove the lubrication plugs as indicated in
Draining Oil
, and position the pump with one of
the lubrication holes facing up. Add SAE 10W 30
motor oil through this plug hole until oil escapes
from the other (lower) plug hole.
Lubricate and install new plug O-rings, and install
and tighten the plugs.
