Generac Power Systems CW15 Owner'S Manual Download Page 27

Maintenance

Water Pump

23

There is no need to drain gasoline from the engine if a 
fuel stabilizer is added according to instructions. Run the 
engine for 2 minutes to circulate the stabilizer throughout 
the fuel system. The engine and fuel can then be stored 
up to 24 months.

If gasoline in the engine has not been treated with a fuel 
stabilizer, it must be drained into an approved container. 
Run the engine until it stops from lack of fuel. The use of 
a fuel stabilizer in the storage container is recommended 
to maintain freshness.

Hearing Protection Recommended.

 6.12.2 — Protect Engine

1.

Change engine oil.

2.

Remove spark plug.

3.

Pour a tablespoon (5-10 cc) of clean engine oil into 
the cylinder.

4.

Pull the starter rope several times to distribute the oil 
in the cylinder.

5.

Reinstall the spark plug.

6.

Pull the starter rope slowly until resistance is felt. 
This will close the valves so moisture cannot enter 
the engine cylinder. Return the starter rope gently.

 6.12.3 — Change Oil

Allow the engine to cool down and then drain oil from 
crankcase. Refill with recommended grade. See “Chang-
ing Engine Oil”.

Hot oil may cause burns. Allow engine to cool 
before draining oil. Avoid prolonged or 
repeated skin exposure with used oil. Thor-
oughly wash exposed areas with soap.

 6.12.4 — Protecting the Pump

To protect the pump from damage caused by mineral 
deposits or freezing. Make sure the pump is completely 
drained of all water. Spray WD-40, or similar product, into 
all ports and drainage hole.

• Failure to do so will permanently damage your pump 

and render your unit inoperable.

• Freeze damage is not covered under warranty.

6.13 — O

THER

 S

TORAGE

 I

NSTRUCTIONS

1.

DO NOT store fuel from one season to another 
unless it has been treated as described in Protect 
Fuel System.

2.

Replace fuel container if it starts to rust. Rust and/or 
dirt in fuel can cause problems if it’s used with this 
unit.

3.

Cover unit with a suitable protective cover that does 
not retain moisture.

Storage covers can be flammable.

• DO NOT place a storage cover over a hot water pump.

• Let equipment cool for a sufficient time before placing 

the cover on the equipment.

4.

Store unit in a clean and dry area.

6.14 — T

RANSPORTING

/T

IPPING

 

OF

 

THE

 

U

NIT

Do not operate, store or transport the unit at an angle 
greater than 15 degrees.

Summary of Contents for CW15

Page 1: ...www generac com or 1 888 436 3722 Owner s Manual Water Pump Model ST20 Model Number Serial Number Model CW15...

Page 2: ...stituents are known to the state of California to cause cancer birth defects and other reproductive harm WARNING California Proposition 65 This product contains or emits chemicals known to the state o...

Page 3: ...on 15 5 2 Water Pump Location 15 5 3 Checklist Before Starting Engine 16 5 4 How to Start Your Water Pump 16 5 5 How to Stop Your Water Pump 17 Section 6 Maintenance 6 1 Maintenance Recommendations 19...

Page 4: ...iv...

Page 5: ...fore use Refer to the Assembly section of the manual for instructions on final assembly procedures Follow the instructions completely The manufacturer cannot anticipate every possible cir cumstance th...

Page 6: ...2 Water Pump This page intentionally left blank Introduction...

Page 7: ...n which if not avoided could result in minor or moderate injury NOTE Notes contain additional information import ant to a procedure and will be found within the regu lar text body of this manual These...

Page 8: ...s burns Exhaust heat gases can ignite combustibles structures or damage fuel tank causing a fire DO NOT touch hot parts and AVOID hot exhaust gases Allow equipment to cool before touching Keep at leas...

Page 9: ...is filled with water before start ing the engine NEVER run pump without priming Use a non collapsible hose on the suction side of the pump Use the pump only for its intended uses 2 1 5 Hearing Protect...

Page 10: ...missing parts or without protective housing or covers DO NOT by pass any safety device on this machine DO NOT operate water pump above rated head DO NOT modify water pump in any way Before starting w...

Page 11: ...Choke Prepares a cold engine for starting J Air Filter Protects engine by filtering dust and debris out of the intake air K Recoil Starter Used for starting the engine L Engine ON OFF Switch Turn swi...

Page 12: ...General Information 8 Water Pump Figure 3 2 CW15 Features and Controls Figure 3 3 Features and Controls H I J M K L B C D A G E F Q V U T S R W X Y...

Page 13: ...ng backfiring Black exhaust smoke or high fuel consumption 3 4 HIGH ALTITUDE OPERATION The fuel system on this engine may be influenced by operation at higher altitudes 3 5 UNPACKING 1 Remove the loos...

Page 14: ...10 Water Pump This page intentionally left blank General Information...

Page 15: ...n Mounts feet Figure 4 1 A Attach the vibration mount to the frame using 2 Flange Bolts M8x40 and 2 Nuts M8 B Slide the bolts through the vibration mount and through the frame C Secure with nuts Tight...

Page 16: ...ne to run on alternate fuels To protect the fuel system from gelling mix in a fuel stabi lizer when adding fuel See Storage All fuel is not the same If you experience starting or performance prob lems...

Page 17: ...ing with a hose clamp 3 Attach the green suction hose to the green colored flange by sliding the hose over the barb and securing with a hose clamp Figure 4 7 Figure 4 7 Attach Hoses 4 Attach the filte...

Page 18: ...14 Water Pump This page intentionally left blank Set up...

Page 19: ...Keep exhaust gas from entering a confined area through windows doors ventilation intakes or other openings NEVER start or run engine indoors in a vehicle or in an enclosed area EVEN if windows and do...

Page 20: ...this instruction will void warranty 5 4 1 Starting the CW15 Water Pump 1 Flip engine switch A to the ON position Figure 5 3 2 Move choke lever B to CHOKE position A For a warm engine be sure the choke...

Page 21: ...on all sides of water pump including overhead It is a violation of California Public Resource Code Section 4442 to use or operate the engine on any for est covered brush covered or grass covered land...

Page 22: ...18 Water Pump This page intentionally left blank Operation...

Page 23: ...ar A new spark plug and clean air fil ter assure proper fuel air mixture and help your engine run better and last longer 6 2 MAINTENANCE SCHEDULE Follow the hourly or calendar intervals whichever occu...

Page 24: ...KING REPAIRS TO YOUR WATER PUMP Disconnect the spark plug wire from the spark plug and place the wire where it cannot contact spark plug WHEN TESTING FOR ENGINE SPARK Use approved spark plug tester DO...

Page 25: ...re water pump is on a flat level surface 2 Disconnect the spark plug wire from the spark plug and place the wire where it cannot contact spark plug 3 Clean area around oil drain plug A Figure 6 3 and...

Page 26: ...ag to wipe off the hose 3 Empty pump of all liquids Remove drain cap let drain completely replace drain cap 4 Store unit in a clean dry area 5 If storing for more than 30 days see the Long Term Storag...

Page 27: ...nkcase Refill with recommended grade See Chang ing Engine Oil Hot oil may cause burns Allow engine to cool before draining oil Avoid prolonged or repeated skin exposure with used oil Thor oughly wash...

Page 28: ...24 Water Pump This page intentionally left blank Maintenance...

Page 29: ...well as it should 1 Flow is restricted due to debris build up 2 Insufficient submergence of the end of suction hose 3 Excessively worn impeller 2 4 Seal is damaged 3 Liquid will be leaking through th...

Page 30: ...32 Water Pump This page intentionally left blank Troubleshooting...

Page 31: ......

Page 32: ...ts reserved Specifications are subject to change without notice No reproduction allowed in any form without prior written consent from Generac Power Systems Inc Generac Power Systems Inc S45 W29290 Hw...

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