Clarke CRD 2, CRD 3, 7130020, 7130025 User guide

WATER PUMP

WATER PUMP

Model Nos: CRD2 & CRD3

OPERATING & MAINTENANCE

INSTRUCTIONS

1001

Please note that the details and specifications contained herein, are correct at the time of going to

print. However, CLARKE International reserve the right to change specifications at any time without

prior notice. Always consult the machine’s data plate

© Copyright Clarke International. All rights reserved, July, 2001

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PARTS LIST - CRD3

No. Description Q’ty Part No.

1 Casing 1 803-001rd2
2 Casing Cover 1 501-014
3 Impeller 1 881-009
4 Inner Casing 1 801-011
5 Bend 1 801-019
6 Valve Case 1 801-013
7 Mechanical Seal 1 501-010
8 Packing, Casing 1 501-002

9 Packing, Inner Casing 1 801-012
10 Packing, Bend 1 801-020
11 Check Valve 1 801-015
12 Plug 2 501-021
13 Packing, Plug 2 501-022
14 Bolt M8x50 4 501-005
15 Spring Washer 8 4 501-007
16 Plain Washer 8 4 501-008
17 Seal Packing 4 501-006
18 Frame 1 801-030rd2
19 Base (Engine) 1 821-005rd 2/2
20 Base (Pump) 1 821-005rd 2/1
21 Support 2 801-038rd2
22 Anti Vibration Pad 3 821-019
23 Hex.bolt M10x30 4 501-003
24 Hex.bolt M8x25 4 501-014
25 Hex.bolt M8x30 3 801-014
26 Hex.bolt M10x50 2 1021-003
27 Flange Nut (M10) 2 1001-033
28 Nut (w/Spring Washer) 6 1001-024
29 Hex.bolt M8x20 4 501-041
30 Washer 4 501-008
31 Flange Nut (M8) 2 501-024
32 Packing, Coupling 2 801-017
33 Hose Coupling 2 801-018p
34 Hose Coupling Handle 2 801-016
35 Hose Band 3 801-028
36 Strainer 1 805-029

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PARTS DIAGRAM - CRD3

Thank you for purchasing this CLARKE diesel driven water pump.

Before operating the machine, please read this booklet thoroughly and
ensure that all instructions are carefully followed. In doing so you will ensure
the safety of yourself and that of others around you, and you can look
forward to the Water Pump giving you long and satisfactory service.

GUARANTEE

This CLARKE product is guaranteed against faulty manufacture for a period
of 12 months from the date of purchase. Please keep your receipt as
proof of purchase. This guarantee is invalid if the product is found to have
been abused or tampered with in any way, or not used for the purpose
for which it was intended.

Faulty goods should be returned to their place of purchase, no product
can be returned to us without prior permission. This guarantee does not
affect your statutory rights.

CONTENTS Page

Safety Precautions .................................................................. 4

Preparing The Pump ............................................................... 5

Operating Instructions ............................................................ 5

Technical Data ........................................................................ 6

Troubleshooting ....................................................................... 7

Parts and Service Contacts ................................................... 9

Parts Lists and Diagrams ......................................................... 8 - 11

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SAFETY PRECAUTIONS

PARTS LIST - CRD2

WARN ING :

A

s with all machinery, there are certain hazards involved with their operation

and use. Exercising respect and caution will considerably lessen the risk of

personal injury. However, if normal safety precautions are overlooked or

ignored, personal injury to the operator or damage to property, may result.

1. Never use these pumps for pumping flammable liquids such as petrol.

2. In pumping corrosive materials, extreme caution should he exercised. Provide
safety guards, ventilation, and drains to protect people and property in case
of a leak in the pump.

Handling instructions from the manufacturer(s) of the liquids being pumped
should be closely followed.

3. Before starting the pump, follow all of the instructions in this manual and any
supplemental instructions supplied with the pump.

4. Any person operating this pump and its’ power unit should be fully aware of
its safe operation before they start using it.

5. Never operate an engine driven unit in an explosive atmosphere, near
combustible materials, or where insufficient ventilation exists unless specific
provisions have been made regarding the power unit so as to prevent possible
injury and damage. Be certain any other power unit is safe for the area in
which it is to be operated.

6. Always be sure that the unit is on a secure footing and keep the immediate
pump and power unit area free of all unauthorized personnel. If the pump is
sitting beside a pit, be sure it is well anchored so that it does not fall in.

7. Never operate the unit with any guards removed.

8. Do not overtighten the drain or filter plugs. Excessive force may damage the
threads or the pump body.

9. With engine driven pumps:

a. Observe all safety precautions for the handling of fuel.

b. Never refuel the engine while running, and care should be exercised so

that no fuel is spilled on a hot engine.

10. Before working on this pump make sure that the power unit cannot
inadvertently be started.

11. Be sure that the power unit, pump, wiring and piping installations are suitable for the
liquid being pumped, and comply with all applicable codes and regulations.

12. Use at least 300mm of flexible hose to make plumbing connections to the pump
body. Rigid piping may put stresses on the pump, causing damage. If the rigid
piping must be used, properly support it so as to eliminate stresses on the pump.

13. Use replacement parts supplied by the manufacturer only.

14. Do not run the pump dry. Always fill the pump body with the liquid to be

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No. Description Q’ty Part No.

1 Casing 1 503-001

2 Casing Cover 1 501-004
3 Impeller 1 501-009
4 Inner Casing 1 501-011
5 Bend 1 501-019
6 Valve Case 1 501-013
7 Mechanical Seal 1 501-010
8 Packing, Casing 1 501-002

9 Packing, Inner Casing 1 501-012
10 Packing, Bend 1 501-020
11 Check Valve 1 501-015
12 Plug 2 501-021
13 Packing, Plug 2 501-022
14 Bolt M8x50 4 501-005
15 Spring Washer 8 4 501-007
16 Plain Washer 8 4 501-008
17 Seal Packing 4 501-006
18 Frame 1 501-030rd2
19 Hex.bolt M10x30 4 501-003
20 Hex.bolt M8x25 4 501-014
21 Hex.bolt M8x25 3 501-014
22 Hex.bolt M8x40 4 501-023
23 Frange Nut 8 4 501-024
24 Packing, Coupling 2 501-017
25 Hose Coupling 2 501-018p
26 Hose Coupling Handle 2 501-016p
27 Hose Band 3 501-028
28 Strainer 1 505-029

For Spare Parts and Service, please contact your nearest dealer,
or CLARKE International, on one of the following numbers.

PARTS & SERVICE TEL: [phone]

PARTS & SERVICE FAX: [phone]

or e-mail as follows:

PARTS: ............................ [e-mail]

SERVICE: ........................ [e-mail]

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PARTS DIAGRAM - CRD2

pumped before starting the pump. It is not necessary to drain the pump body
after use, unless there is danger of freezing, settling of solids, or crystallization.

15. Do not subject pump to extreme conditions of acidity or basicity. Consult factory for
specific recommendations concerning chemicals and temperature.

This self-priming centrifugal pump is designed for use with water containing sand,
mud or solids in suspension. When pumping water, the pumps are self-priming on
static suction lifts of over 26ft, whilst with liquids which foam, or foam emulsions,
the static suction lift is reduced to 26ft.

An open impeller with large solids handling capacity is fitted.

PREPARING THE PUMP FOR OPERATION

Read these instructions, and the instructions covering the operation of the engine,
before starting the engine:

This Clarke unit is not supplied with engine oil or diesel fuel. Consult the engine
manual supplied and fill with oil and diesel fuel before use as recommended.

BEFORE STARTING

1. A suction strainer should be attached to the suction hose or pipe. It is provided
with holes or slots small enough to prevent big stones, etc. from working through
and damaging the impeller. Keep the strainer clean. If possible, suspend it to
keep it from working into the sediment.

2. Fill the engine crankcase and air cleaner with oil as specified in the engine manual.

3. Fill the fuel tank with diesel fuel.

4. Fill the pump with liquid through the priming port on top of the pump case.
Remember the pump is self-priming ONLY when the pump is filled. It will prime
and reprime itself without refilling. Refilling is necessary only if the pump has
been drained or if the fluid has been lost.

5. Place the pump on a level, firm foundation, putting it as near as possible to the level
of the liquid which is to be pumped but never higher than 26ft (8 metres).

OPERATING INSTRUCTIONS

1. STARTING - See Engine Manual.

2.

PRIMING TIME - With a suction lift from 5 to l0ft., the pump should discharge liquid in

less than a minute. A suction lift of 25ft (at sea level) should require not more than 2
minutes for initial prime. To further reduce priming time the engine speed may be
increased, after the engine is properly run in. If pumping does not start within this
time, shut off engine and check carefully to find the problem.

(See TROUBLESHOOTING GUIDE).

3.

CONTROL - On high suction lifts, a higher engine speed is necessary than on low lifts.

Therefore, on shallow lifts or when there is but little liquid to pump, save fuel

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and the engine by reducing the engine speed. (See engine manual).

4. CHECK VALVE - If the discharge line runs vertically more than 30ft., it is advisable to

install a check valve in the discharge line near the pump to stop destructive liquid
hammer when the pump is shut down. If this is done, it may be necessary to vent the
top of the pump so that air can be expelled during automatic repriming. This air
bleed may be accomplished by providing a 1/4” line from the top of the pump
back to the liquid source. CLARKE International will not assume any responsibility for
damage to the pump if no check valve is used in the discharge line. Properly fuelled
and lubricated, your pump will run without attention.

5.

CONNECTING HOSE - Make certain that all hose and pipe connections are airtight.

IMPORTANT : An air leak in the suction line max- prevent priming, and will reduce
the capacity of the pump. I loses or pipes should be supported independently
and not carried by the pump. NOTE : Use sealant on all threaded connections.

6. Always place the pump as close as possible to the liquid to he pumped.
Keep all lines as short and straight as possible. Avoid sharp bends in hoses.
Keep the pump level on solid foundations at all times..

7. If flexible hose must be laid across a roadway, protect it with planking.
Instantaneous shutoff pressure, applied when a vehicle runs across an
unprotected hose, will cause “hydraulic shock”. This shock can damage the
pump and or damage the hose.

8. When pumping dirty water or other liquids which may contain solids always use
a pump strainer specified by the manufacturer on the end of the suction line. If
the suction strainer is likely to clog with dirt and debris, do one of the following:

(a) Prepare a bed of stones on which to rest the strainer.

(b) Tie the strainer so that it stays off the bottom of the pit, excavation.

(c) Tie the strainer inside a basket or pail.

9. Drain the primp body whenever there is danger of freezing.

10. Always flush out the pump at the end of operation if the liquid being pumped
max leave a solid or sticky residue in the pump. If this is not done, damage to
the pump may result.

TECHNICAL DATA

Model

Size

(inches)

Max Flow

(LPM)

Max. Head

(Metres)

Weight

(kg)

Dimensions

(LxWxH)

(mm)

Part No.

TROUBLESHOOTING

A. PUMP FAILS TO PRIME

1. Priming chamber empty or not sufficiently full.

2. Wrong direction of rotation (see arrow on back of the pump casing).

3. Air leaks through the suction line joints (screws out of thread or broken, rubber
hoses damaged).

4. Quick coupling gaskets broken or not well mounted.

5. Hose clamps loose or broken.

6. Liquid in priming chamber overheated (fill with cold liquid

7. Delivery line under pressure (bleed the air through the priming plug or through
a bleeder valve in the delivery line).

8. Rotation speed too low.

9. Worn or broken impeller.

10. Air leaks through damaged mechanical seal (replace the seal).

B. LOW CAPACITY

I. Suction strainer clogged (clean).

2. Suction or delivery line obstructed (remove obstruction).

3. High friction losses in the suction line (eliminate unnecessary curves, restrictions
or valves).

4. Suction lift too high (set up the pump as near as possible to the level of the
liquid to be pumped).

5. Rotation speed too low.

6. Impeller clogged.

PARTS and SERVICE CONTACTS

For Spare Parts and Service, please contact your nearest dealer,

or CLARKE International, on one of the following numbers.

PARTS & SERVICE TEL: [phone]

PARTS & SERVICE FAX: [phone]

CRD2 2 550 32 42 540x370x460 7130020

CRD3 3 900 28 43 590x410x510 7130025

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or e-mail as follows:

PARTS: [e-mail]

SERVICE: [e-mail]

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