have replaced the Bushing and O-Ring, reassemble all parts with
care (see Fig.1 &
Closing the Pump Cage
).
Closing the Pump Cage
Place the pump inside the bottom half of the cage. Ensure that the
electrical cord is properly seated inside the recess located on the
bottom half of the cage.
At a 45° angle, join the top half of the cage to the bottom half of
the cage by first aligning the two posts, located on the top half of
the cage, with the two docking holes, located at the bottom half of
the cage. Close the cage completely, ensuring that both halves are
fully aligned. Lock the pivot pin fasteners as explained in
section called
Opening and Closing the Pump Cage
.
Ensure that the pump cage is securely locked and the electrical cord
is seated properly in position before lifting or operating the pump.
Volts
120
230-240
Hertz
60
50
Watts
160 160
Maximum depth
6’6”/2 m
Max flow rate
Max head
Degree of protection
IPX8
MAX-FLO PUMP
4200/16000
PT-352
US GPH
LPH
ft
m
4200
16000
14’9”
4.5
4200
16000
14’9”
4.5
TROUBLESHOOTING
LOW FLOW FROM PUMP
• Check that the pump cage is clean
• Check the hose for blockages
• Check that the pump is free of dirt and debris
NO FLOW FROM PUMP
• Check that the power supply is on
• Check the fuse (UK market only) and wiring
• Check that the plug is correctly connected to the electrical
receptacle/socket
• Check that the pump cage is clean
• Check the hose for blockages
• Check that the pump is free of dirt and debris
• Check that the pump is completely immersed in water
WARRANTY
The pump is guaranteed against defects in material or
workmanship for a period of 3 years from date of purchase,
under normal usage. The pump will be repaired or replaced at
manufacturer’s discretion, free of charge. This warranty does
not apply to any pump that has been subjected to misuse,
negligence, tampering or accidental damage to the impeller or
impeller shaft. No liability is assumed with respect to loss or
damage to livestock or personal property irrespective of the
cause thereof. This warranty does not affect your statutory
rights. Failure caused by misuse is not covered by this warranty.
A
B
C
D
G
H
F
E
• Once a week, verify that the pump performance is satisfactory. If
you detect a drop in pump performance (such as a decrease in
water flow from the pump or to the waterfall) first clean the Pump
Cage and the hosing. If the water flow is still not fully restored to
its original performance, clean the Impeller, Impeller Well and
Impeller Cover
(
Cleaning the pump motor impeller, impeller
well, and impeller cover)
• The Pump Cage must be cleaned at least once a month
• When necessary, or at least once a year, clean the pump motor
completely (Impeller, Impeller Well, and Impeller Cover) and check that
no limestone deposits, which could jeopardize pump operation, are
present
• To keep the pump in good working order, always replace any worn
parts
• The pump motor has no user serviceable parts. If the motor or the
electrical cord is damaged, discard the pump
• If you have any doubts, consult your Laguna retailer or call the appro-
priate customer service department listed at the back of this manual
Cleaning the Pump Cage
The main purpose of the Pump Cage is to keep the pump free of big-
ger solid particles (or solids) that could potentially clog the pump
motor. It is therefore normal that these solids progressively accumu-
late on the external surface of the cage. With the passing of time,
they can diminish the performance of the pump, as evidenced by
less water flow to the filter or waterfall. To clean the cage and
restore the pump performance to its original level, proceed with one
of the following:
• Without removing the pump from the pond, brush off the debris
from the external surface of the cage using a broom or similar
tool. For best results, brush the cage along the ribs
• Remove the pump from the pond, unlock the pivot pin
fasteners (Fig.3) and remove the upper half of the cage. Clean all
components with streaming water from a garden hose.
Reassemble all components with care
Ensure that the pump cage is securely locked and the
electrical cord is seated properly in position before lifting or
operating the pump
(see
Closing the Pump Cage
).
Cleaning the pump motor impeller, impeller
well, and impeller cover
CAUTION: The pump motor includes a high quality ceramic
shaft that provides long-lasting, reliable performance when
properly maintained. However, extreme care should be taken
when handling the shaft during maintenance. Avoid dropping
or pressing too hard on it to avoid breakage or hairline frac-
tures, which may cause the shaft to snap while in operation.
Take the pump out of the pond, unlock the pivot pin fasteners and
remove the upper half of the cage. Free the pump from the lower
half of the cage.
1) Using a Phillips (cross-headed) screwdriver, unscrew the four
screws on the impeller cover (4) and remove the impeller cover
2) Using a flathead screwdriver, carefully lift out the impeller
assembly.
3) Clean all components in clean water only, using a small, non-
abrasive brush, if necessary. DO NOT USE DETERGENTS OR
OTHER CHEMICAL CLEANERS which could damage the pump
and pollute the pond
4) Reassemble all components with care (see
Closing the Pump
Cage
), ensuring that the impeller bearing, bushing and O-Ring
are correctly placed at the bottom of the impeller well.
Replacing the Bushing and O-Ring
(Replacement pack not included. Part # PT-466).
Though the bushing is made of very resistant material, it is prone to
wearing in certain conditions. For this reason, it is recommended
that you replace it whenever the impeller unit is replaced. Follow the
instructions provided with the replacement parts package. Once you
The electrical installation and wiring must comply with the safety
standards in your area. If unsure, ask a qualified electrician to do the
wiring. The electrical cord must be protected against any objects
that may potentially damage it. The electrical receptacle/socket must
be located in a dry, protected and easily accessible place.
WARNING: Always unplug or disconnect all appliances in the
pond from the electrical supply before installing, repairing,
maintaining or handling the equipment in the water.
IMPORTANT: To achieve the best pump operation, always use
the largest bore hose possible. Avoid sharp bends in the
hosing; gradual curves are preferred.
Installation:
WARNING: Do not plug in the pump before it is correctly and
fully installed.
1) Connect a flexible hose (not included) to the "Click-Fit" coupling
provided. If necessary cut the coupling at the required size by
using a small hack saw in order to allow the hose to fit properly
and to achieve the best water flow.
2) Insert the coupling, complete with hose attached, onto the outlet
of the pump
3) Place the pump in the pond ensuring that it is completely
immersed in water and securely installed on a solid, level and
elevated platform. If necessary, use the keyhole-shaped slots at
the bottom of the pump to fasten it to a secure base.
4) Connect the other end of the hose to a filter or waterfall (not
included) according to your requirements
Installing the intake strainer
(available with Max-Flo 4200 only)
The pump is sold with an add-on intake strainer that can be con-
nected to the input of the pump, in the event that you want to use it
without its cage in instances where space is
limited, such as in the chamber of a skimmer filter.
1) Remove the pivot pin fasteners as described below in
Opening
and Closing the Pump Cage
.
2) Remove the pump from the cage and attach the intake strainer
over the intake of the pump (See Fig 1a)
3) Connect the hosing as described in the installation procedure
above and install the pump in the desired location, or if neces-
sary, place the pump in the desired location and connect the
hosing to the output of the pump
Do not allow the pump to run dry.
Opening and Closing the Pump Cage
(See Fig.3)
The upper and lower halves of the
pump cage are fastened together by
pivot pin fasteners. Using a standard
flat screwdriver (5 mm to 8 mm), do
the following:
To open the pump cage:
Gently turn
the fastener counterclockwise by 1/4
to release the pin.
To close the pump cage:
Gently
press on the fastener and turn clock-
wise by 1/4 to lock the pin.
Pump Operation
Once the pump is fully installed, it can be started by inserting the
plug in the electrical receptacle/socket.
Pump Maintenance
WARNING: Always unplug or disconnect all appliances in the
pond from the electrical supply before installing, repairing,
maintaining or handling the equipment in the water.
To avoid shortening the life of the pump, follow these simple
maintenance procedures:
Fig.3
4
3
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