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QP4TZT10P/TMP16F/TMPXF TRASH PUMP • OPERATION & PARTS MANUAL — REV. #1 (08/29/11) — PAGE 15
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Figure 3 shows a typical application using the QP4TZ trash 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 1.5 inch (30 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.
Figure 3. QP4TZ Pump Application
1. Pump — The model QP4TZ is a 4-inch trash pump
used in general dewatering applications. Typical
dewatering applications consist of manholes, septic
tanks, fast and slow seepage ditch water, silt water,
mud water, and muck water.
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 4-inch discharge hose
to either port (one of two ports).
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 this 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.
6. Suction Port — Connect a 4-inch inlet hose to this
port. Use two worm clamps to secure the hose.
7. Suction Hose — Connect this flexible rubber hose to
the suction portion 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. Clean-out Cover Handles — To gain access to the
pump's clean-out area, grip both handles, then pull to
remove cover. Make sure both locking knobs have been
released before attempting to remove clean-out cover.
9. Drain Plug — Remove this plug to drain water from
the pump.
10. Clean-out Cover — Remove cover to gain access to
the clean-out area.
11. Locking Knobs — Turn both knobs clockwise to secure
clean-out cover, turn counterclockwise to release cover.
12. Strainer — Always attach a strainer to the 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.