41
X-Series Waterblast Unit
Filter Inspection
1. Rotate the handle (Figure 52, A) on the l-
ter cover (Figure 52) and swing the cover
open.
2. Unscrew the wing screw (Figure 53) that
holds the lter retainer plate in place.
3. Remove the lter retainer plate.
4. Lift the lter bags (Figure 54) from the
tank and inspect for debris. Replace as
necessary.
Secondary Filter (40k Operation Only)
The secondary lter, or polishing lter, is used
for 40K operation only. When operating at 40K,
monitor the lter pressure gauge (Figure 55)
for an indication of lter condition. During
normal operation, the pressure gauge should
be within the 30 to 40 psi (2 to 2.75 bar) range.
When differential pressure inside the lter
housing between the clean side and the dirty
side drops approximately 7 to 10 psi (0.48 to
0.69 bar), the pressure switch on the lter
housing will trip and the engine will shut off to
protect the unit from damage. Replace the
dirty lter cartridge if this occurs.
ATTENTION
Filter bags are not washable. Any attempt to wash
or ush a bag for reuse could damage the bag.
This may allow debris past the lter and into the
valves causing damage.
ATTENTION
Extended operation with a dirty lter will lead to
lter failure and allow debris to reach the valves
causing damage to the valves.
It is important to know the condition of your
lter cartridge. Standard units come with a
pressure gauge on the lter. In order to monitor
the condition of the lter it is important to note
the engine operating speed and housing pressure
when the lter is rst changed. Refer to “Filter
Cartridge Replacement” on page 42 for more
information.
Figure 52: Filter Cover
Cover
A
Figure 53: Retainer Plate Removal.
Retaining Plate
Wing Screw
Filter Bags
Figure 54: Filter Bag Removal.
Figure 55: Secondary Filter Assembly.
Pressure Gauge
Pressure Switch