Pentair Modular DE Filter PLDE48 - Manual (Page 7)

7
5. Remove Posi-Lok™ ring as follows:
a. Press safety latch (below the ring) toward the tank to
release it (see Figure 4).
b. Hold latch in the release position and rotate ring
COUNTERCLOCKWISE to remove. If ring is difficult
to turn, tap gently with a rubber mallet to overcome
initial resistance.
NOTICE: DO NOT use screwdriver or bladed instrument
that may damage shell surfaces to pry tank shells apart.
6. Separate upper and lower tank shell halves using tabs
on bottom of Posi-Lok™ ring. Insert tab into slot lo-
cated at tank joint and twist ring to pry shell halves
apart. See Figures 5 and 6.
7. Remove O-ring from upper tank shell. Inspect for
cuts, cracking, deformation or signs of wear; replace
if necessary.
NOTICE: To avoid strain or damage, allow filter mod-
ule to drain before lifting it out of the tank.
SAFETY LATCH (See Figure 7)
The purpose of the safety latch is to hold the Posi-Lok™
ring in the locked position. If the latch is damaged, re-
place it as follows:
1. Press down on the small catch behind the safety latch
and press or tap the latch out of the “Tee” slot in the
tank (see Figure 7).
2. Snap the new latch into position.
NOTICE: DO NOT operate the filter if the safety latch
is damaged or will not hold the Posi-Lok™ ring in the
locked position.
Assembly:
1. Inspect and clean the tank, ring threads and O-ring
groove. Replace damaged parts as necessary.
2. Install the filter by placing the port in the bottom of the
filter cartridge over the tank outlet port. Push down
firmly to seal.
3. Ensure that the air bleed assembly on top of the mod-
ule is clean and properly mounted.
NOTICE: Lubricate O-ring only with the silicone
grease provided or equivalent, as other lubricants may
cause the ring to swell. DO NOT lubricate Posi-Lok™
ring or threads on lower tank shell as this may collect
grit and make removal difficult.
4. Install the O-ring in the upper tank shell O-ring
groove. Be sure that the
O-ring is clean and not twisted.
5. Push the upper tank shell into the lower tank shell to
compress the O-ring.
6. Place the Posi-Lok™ ring squarely over the tank shell
threads and rotate COUNTERCLOCKWISE until the
ring falls into the slots; then rotate CLOCKWISE until
securely latched.
7. Follow instructions in the “Initial Startup” section of
this manual.
Figure 5 – Insert ring tab in slot in filter body.
Depress Safety Latch
to unscrew Posi-Lok™
Ring
2151 1195
RELEASE RELEASE
Figure 4 – Depress safety latch to unscrew
Posi-Lok™ Ring.
Figure 6 – Roll ring to one side to loosen upper tank
half.
Small
Catch
Figure 7 – Safety Latch