102
General Maintenance
4.4 Clean Water Filter Replacement
10 Micron Bag Filter
THE FILTER CANISTER LIDS CAN BE EJECTED FROM THE
CANISTER IF THE RETAINER RING IS LOOSENED WHILE
THE CHARGE WATER SYSTEM IS PRESSURIZED. THIS CAN
RESULT IN DAMAGE TO THE FILTER AND COULD CAUSE
INJURY TO PERSONNEL.
ALWAYS MAKE SURE THE WATERBLASTING SYSTEM AND
CHARGE PUMP ARE DISENGAGED, THE CLEAN WATER
SUPPLY VALVE IS OFF AND THE PRESSURE HAS BEEN BLED
FROM THE SYSTEM BEFORE REMOVING THE FILTER LIDS.
NOTICE:
WHEN REINSTALLING THE RETAINER RING, PLACE A SMALL
AMOUNT OF ANTI-SEIZE ON THE RETAINER RING BOLT
THREADS TO PREVENT GALLING OF THE THREADS.
Replacing the 10 micron lter:
1. Make sure the waterblasting system is shut-
down and the truck is in the service posi-
tion.
2. Close the clean water supply valve and bleed
pressure from the charge water system.
3. Remove lter canister lid and retainer ring.
4. Remove the lter and lter cage.
5. Flush the lter canister and cage to remove
debris and contaminants if necessary.
6. Place a new lter bag inside the lter cage.
Filter bag must be fully expanded to the end
of the cage to provide proper ltration and
water ow.
7. Push lter and cage into the lter canister until
properly seated.
10 Micron Bag Style Filter
10 Micron Filter Canister
8. Coat the retainer ring threads with anti-sieze
and install lter canister lid. Tighten retainer
ring bolt.
9. Open the clean water valve and reactivate the
waterblasting system. Follow the instructions
to bleed air from the charge water system in
the next section of this chapter.
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