Revision
11
g.
Check the inlet filter on the water tank by unscrewing the plastic bowl (Figure
4-5).
Flush out the bowl and rinse the screen before re-installing the screen and bowl.
Tighten the bowl finger tight.
Figure
4-5.
Check
water inlet filter.
h.
If
the unit is equipped with the optional Water Inlet Bag Filter (PM3350), connect the
inlet and outlet piping to filter, connections are
1-1/2" female NPT. (Flow through the
filter media is from inside to outside.) A minimum clearance
of
15" (38.1 cm) above
the centerline
of
the filter inlet is necessary for removal
of
the filter internals. Provision
should be made for relieving any residual pressure that may remain in the filter after
inlet flow is shut off.
1. Check oil level in gear-pac,
if
so equipped.
j. Open and drain the stuffing box drain sump located at the rear
of
the unit (Figure 4-6).
The dram sump preven1s
the,
water and
011
mixture packmg weepage from
rnn~mg
onto
the surface where the high pressure water jetting unit
is
located.
Figure
4-6.
Drain
stuffing
box.
© Copyright June, 2005 NLB Corporation
4-13
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