Generac Power Systems CW15 Owner'S Manual Download Page 25

Maintenance

Water Pump

21

 6.8.2 — Adding Engine Oil

1.

Make sure water pump is on a flat, level surface.

2.

Check oil level as described in Checking Oil Level.

3.

If needed, slowly pour oil into oil fill opening until the 
proper level on the dipstick is reached.

4.

Insert the dipstick into filler neck but do not screw it 
in.

5.

If level is low, fill until the oil level is between “L” and 
“H” on the dipstick (Figure 6-2).

6.

Replace and tighten oil fill cap.

Figure 6-2. Dipstick

 6.8.3 — Changing Engine Oil

If you are using your water pump under extremely dirty or 
dusty conditions, or in extremely hot weather, change the 
oil more often.

Avoid prolonged or repeated skin contact with 
used motor oil.

• Used motor oil has been shown to cause skin cancer in 

certain laboratory animals.

• Thoroughly wash exposed areas with soap and water.

KEEP OUT OF REACH OF CHILDREN.

• Don’t pollute. Conserve resources. Return used oil to 

collection centers.

Allow the engine to cool down and then change oil as fol-
lows:

1.

Make sure 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 
(Figure 6-4). The oil drain plug is located at base of 
engine.

4.

Remove oil fill cap (Figure 6-1).

5.

Remove oil drain plug and drain oil completely into a 
suitable container.

6.

Reinstall oil drain plug and tighten securely.

7.

Slowly pour oil into oil fill opening to the proper level 
on the dipstick. DO NOT overfill.

8.

Reinstall oil fill cap. Finger tighten cap securely.

9.

Wipe up any spilled oil.

10. Properly dispose of oil in an accordance with all local 

regulations.

Figure 6-3. CW15 Oil Drain Plug

Figure 6-4. ST20 Oil Drain Plug

6.9 — S

ERVICE

 A

IR

 C

LEANER

Your engine will not run properly and may be damaged if 
you run it with a dirty air cleaner. Service more often if 
operating under dirty or dusty conditions.

To service the air cleaner, follow these steps:

1.

Remove air cleaner screw(s), and pull off the air 
cleaner cover (Figure 6-5) and (Figure 6-6).

2.

Remove old foam filter and replace with a clean new 
foam filter.

3.

Install cover and insert air cleaner screw(s).

Acceptable Oil
Level Range

A

A

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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