Multiquip SDP3 - Manual (Page 13)

STOW SDP-2 / SDP-3 DIAPHRAGM PUMP — PARTS MANUAL— REV. #2 (12/16/03) — PAGE 13
Figure 2 shows a typical application using the STOW SDP-2 or SDP-3 diaphragm pump. Please note that this pump is intended for
the removal of clean water and water containing some debris and solids. Maximum size of solids should not exceed 1 inch (25 mm)
in diameter. DO NOT set strainer on bottom of water bed. Placing the strainer above the water bed will prevent the pump from
drawing in excessive amounts of sand and foreign debris.
1. Pump – The STOW Models SDP-2 and SDP-3 are 2-inch
and 3-inch diaphragm pumps respectively and are used in
general de-watering applications. Typical dewatering
applications consist of cleaning out cesspools and septic
tanks, draining slow seepage from small excavations,
trenches and construction sites, or pumping out industrial
waste.
2. Fill Cap – Prior to operation, the pump casing should be
filled with water. Remove this cap to add water to the pump.
After the initial prime, a sufficient amount of water will be
retained in the casing so that the operator will not need to
re-prime later.
If the casing is dry or has insufficient water, the pump will
have difficulty in priming which could lead to premature
mechanical seal wear thus causing damage to the pump.
3. Discharge Port – Connect a either a 2-inch, and 3-inch
discharge hose to this port depending on pump model.
4. Worm Clamp – Used to secure the hose to the inlet and
outlet ports on the pump. Use two clamps to secure the
hose on the inlet side of the pump.
5. Discharge Hose – Connect a flexible rubber hose to the
discharge port on the pump. Make sure that the hose lays
flat and is not kinked. Use only recommended type
discharge hose. Contact Multiquip parts department for
ordering information.
Figure 2. STOW SDP-2/SDP-3 Pump Application
STOW SDP-2/SDP-3 — PUMP COMPONENTS
6. Suction Port – Connect either a 2-inch or 3-inch inlet
hose to this port depending on pump model. Use two worm
clamps to secure the hose.
7. Suction Hose – Connect a flexible rubber hose to the
suction port on the pump. Make sure that the hose lays flat
and is not kinked. Use only recommended type suction hose.
Contact Multiquip parts department for ordering information
8. Strainer – Always attach a strainer to bottom side of the
suction hose to prevent large objects and debris from
entering the pump. Strainer should be positioned so that it
will remain completely under water. Running the pump with
the strainer above water for long periods can damage pump.
9. Transmission Oil Fill Plug – Remove this plug to add
SAE 80/90 EP gear oil to the transmission. Transmission oil
capacity is 1-1/4 pints (550 ml.).
10. Connecting Rod Grease Access Hole – Grease
connecting rod bearing through this access hole. Grease
connecting rod bearing every 25 hours of operation.
NOTE
Contact your nearest Multiquip
dealer for quick disconnect hoses
and fittings.