Pentair D65-20AVD Operator's And Service Manual

MODEL D65-20AVD

INDUSTRIAL PUMPS

INSTRUCTIONS AND SERVICE MANUAL

NOTE! To the installer: Please make sure you provide this manual to the owner of the equip ment or to the responsible
party who maintains the system.

Part # 13800A917 | © 2012 Pentair Ltd. | 12/05/12

SPECIFICATIONS

BELT DRIVE SEWER CLEANERS

Type Triplex - Single Acting

*Rated Capacity

Gear Reduction Ratio

*Discharge Capacity

Rated Pressure
Temperature Rating

Cylinder Bore & Stroke
Suction Size
Discharge Size
Cylinder Body Mtl.

Cylinder Mtl.

Piston Packing Mtl.

Piston Assembly Mtls.
Valve Mtl.
Valve Seat Mtl.

Pump Drive End

Pinion Shaft Speed
at Rated Capacity

Pinion Shaft Exten. Dia.
Keyway
Pinion and Crankshaft
Main Bearings

Crankshaft Journ. Bearings
Crosshead Pin Bearing
Recommended Regulator
Cylinder Removal Tool Kit

Valve Seat Removal Tool Kit
Allen Wrench for
Packing Capscrew

*Based on 100% Volumetric Efficiency – Allow 5 to 7% for Valve Slippage.

69.7 GPM @ 456
Strokes/Minute*

3.95

3.87 GPM per 100
Pinion RPM*
2000 PSI Max.
160°F Max.

2" x 3-3/4"
3" NPT
1-1/4" NPT
Ductile Iron

Ceramic
Coated Stainless Steel
Molded Composition
V-Rings

Stainless Steel
Delrin
Stainless Steel, Hardened

Helical Gear Single
Reduction

1800 RPM Max.

1-5/8"
3/8" x 3/16" Straight

Tapered Roller

Steel/Babbit Inserts
Bronze Bushing
15696C5
17539B1

19555B

8574A11

GENERAL INSTRUCTIONS

CAUTION: Positive Displacement Pumps must have a
proper size and operable type of pressure regulating
valve or pressure relief valve piped into the discharge
line. This is mandatory to prevent damage to pump
and piping or possible injury to personnel. Do not
install any valves or shutoff devices in the by-pass
line from pressure regulator to tank or supply.

CAUTION: All pumps should be installed level.
For mobile applications the maximum angle of
intermittent operation should be no more than
5 degrees in any one direction.

CALIFORNIA PROPOSITION 65 WARNING:

This product and related accessories
contain chemicals known to the State of California
to cause cancer, birth defects or other reproductive
harm.

With belt drives, pulley on both engine and pump should
be located as closely as possible to bearing to reduce
bearing and shaft bending loads.

NOTE: See Maintenance Chart for Belt Tension
Specifications in Sewer Cleaner “Operator’s Manual”.
Make sure that all bolts, nuts, set screws, and keys are
properly tightened.

STARTING PUMP

A. Before starting:

1. Read all instructions carefully.

2. Fill pump crankcase with recommended oil to level
mark on oil saber. Oil recommendations are covered
in lubrication section of pump instructions.

3. Replace all drain plugs in pump and piping.

4. Inspect tank to be sure that no foreign material is in
tank or suction line.

5. Fill tank at least half full or connect suction to
water supply. Open valve (if present) in suction line.

Avoid prolonged dry operation which may cause
excessive wear on cylinders and piston packing.
Be sure that an operating pressure gauge is
located in discharge line.

6. Make sure all valves,including spray gun or nozzles,
are open in discharge line. Spray gun may be
anchored to discharge back into tank.

7. Completely back off pressure adjusting screw on
pressure regulating valve.

B. Starting the Unit:

1. After starting, close discharge valve or spray gun
slowly while watching pressure gauge to make sure
relief valve or unloader is operating properly.

2. Adjust relief valve or unloader to desired pressure.
See regulator instructions.

3. Cycle nozzles or gun on and off to be sure that
pressure adjustment and regulator operation is
satisfactory.

NOTE: Nozzle capacity should not exceed 90% of pump
capacity for satisfactory regulator operation. AVOID
FREEZING by draining all water from pump and system
in cold weather.

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