SAFETY PRECAUTIONS
WARNING
As 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. These pumps are designed to pump WATER ONLY. Never use for pumping petrol
(or other flammable liquids), or chemicals.
2. Before operating this pump and its’ power unit, you should thoroughly
familiarise yourself with all aspects of its’ operation, and follow all instructions
in this manual and any other supplementary instructions supplied with the
pump.
3. Never operate an engine driven unit in an explosive atmosphere, near
combustiblematerials, or where there is insufficient ventilation.
4. Always ensure that the pump is properly secured and anchored where
necessary to prevent it from moving during operation, and that the immediate
area surrounding the pump is kept clear.
5. Do not over tighten drain or filler plugs. Excessive force may damage the
threads or the pump body.
6. Observe all safety precautions for the handling of fuel. Never refuel the engine
whilst it is running, and allow the engine to cool sufficiently before refuelling.
7. Whenever carrying out maintenance or making adjustments, ensure that the
power unit cannot be started inadvertently.
8. Use at least 1ft (3OOmm) of flexible hose to make plumbing connections to
the pump. Rigid piping may put stress on the pump, causing damage. If rigid
piping must be used, it should be supported so as to eliminate stress on the
pump.
9. Use only replacement parts supplied by the manufacturer. The use of non
standard parts could be hazardous.
10. NEVER run the pump dry. Always fill the pump body with water before starting.
When in regular use, it is not necessary to drain the pump body each time it is
used, unless there is danger of freezing
11. ALWAYS use the strainer connected to the suction hose, to prevent stones
and other solids from being drawn up, which could cause severe damage.
PARTS DIAGRAM
PARTS LIST
For Engine part no. - Consult your CLARKE dealer
No. Description Part No.
1 Engine See yr Dealer
2 Casing A DS521-002
3 Casing B DS
4 Inner Casing DS521-003N
5 Impeller DS521-04
6 Frame DS521-005-
8 Liner DS521-007N
9 Mechanical Seal DS521-008
10 Flange DS521-009N
11 Bend DS521-010N
12 Check Valve DS521-011N
13 Filler Plug DS501-021
14 Cover Bolt DS521-013
15 Rivet DS521-014
16 Knob DS521-015
17 Casing Cover Hldr DS521-016
18 Casing Packing DS521-017
19 “O” Ring DS501-022
20 Anti-Vibration Rubber DS521-019
Model - CHF2
22 Hose Clip DS501-028
21 Inner Casing Bkt DS521-020
23 Hose Coupling DS501-08P
24 Coupling Handle DS501-016
25 Coupling Packing DS501-017
26 Delivery Packing DS501-020
27 Seal Packing DS501-006
28 Bolt M8x48 N/A
29 Bolt M8x25 N/A
30 Blt Hex. Skt. M8 DS521-029
33 Spring Nut DS1001-024
34 Strainer DS521-033
35 Spring Pin DS521-034
36 Bracket DS521-035
37 Wing Bolt DS521-036
38 Spacer N/A
39 Coupling DS531-030
40 Hex Skt Hd. Bolt DS521-039
41 Anti-Vibration Rubber DS521-037
No. Description Part No.
13
4
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