AG publications ASAP supplies equipment catalogue

IMPELLERS

Installing your new impeller: 1. Use a non-petroleum based lubricant (silicon or soapy water) to help slide the impeller into the housing. 2. Install the impeller with a twisting motion onto the shaft. Never force an impeller onto the shaft. The impeller must be able to move freely on the shaft to properly prime and function. 3. Use a small amount of non-petroleum based lubricant to help hold the ‘O’-ring when replacing the cover. Removing your old impeller: To ensure that you do not damage your pump components when removing an old impeller, it is recommended to use the special impeller puller which aids in clamping round the impeller to simply slide out of the pump. Using other tools to remove impellers often cause damage to the pump internal components, which can affect the pump performance. The number one reason for premature engine wear is overheating. To maintain performance, insist upon original engine specified pumps. We only supply genuine replacement impellers and spares which are designed to provide the best pumping performance.

PUMPS

Pitting

Bead worn to flat

Recommended inspection to be performed at any service interval: • Impeller - Inspect for cracks or tears. Also, inspect for excessive abrasion of vane ends, replace annually • Wear plate - Inspect for wear, flatness, and pin for fatigue. Replace at minor and major pump rebuild or if wear is evident to maintain pump flow and suction performance • Cam - Replace at major pump rebuild or if pitting / wear is evident • Cover - Replace at major pump rebuild or if wear exists to maintain pump flow and suction performance • Mechanical seal - Replace at minor and major pump rebuild or if leaking • Lip seal - Replace at minor and major pump rebuild or if leaking • Shaft - Inspect for wear in area of lip seal and rubber impeller. Grooving of lip seal area or heavy fretting of the impeller end shaft will require shaft replacement • Bearing - Inspect for loss of grease, corrosion or rough rotation. Replace at major pump rebuild or if in doubt

Tear

Ripped vane

Cavitation

Bowed (set)

IMPELLER PULLERS

Part no. 210471 210473 SW25105 SW25106

Suitable for

Most small impellers up to 65mm diameter Larger impellers over 65mm to 114mm diameter

Sherwood 17000, 18000, 22000, 26000, 29000 and 30000 impellers

Sherwood 27000 impellers

210473

SW25105

NEOPRENE FLEXIBLE IMPELLERS Ensure that you keep your engine in the condition it was designed to be in by the engine manufacturer. If they specified Sherwood, fit genuine Sherwood impellers and spares to your Sherwood pumps. • Sherwood neoprene flexible impellers are used for pumping water • All of the below impellers are supplied as an impeller kit with gasket and / or ‘O’-ring (*except for SW10187 )

B

C

A

Part no.

Diameter A mm (inch) 40 (1-9/16”) 57 (2-1/4”) 62.5 (2-7/16”) 62.5 (2-7/16”) 65 (2-9/16”) 65 (2-9/16”) 66 (2-19/32”) 84 (3-5/16”) 84 (3-5/16”) 95 (3-3/4”) 95 (3-3/4”) 95 (3-3/4”) 114 (4-1/2”) 114 (4-1/2”)

Depth B mm (inch) 19 (3/4”) 20 (25/32”)

Shaft diameter C

Keyway

Number of vanes

Sherwood Impeller puller

SW08000K SW10077K SW09000K SW09959K SW10615K SW15000K SW10187* SW17000K SW27000K SW29000K SW18000K SW26000K SW22000K SW30000K

- - - - - - -

7/16”

Single flat

6

1/2” 5/8” 5/8” 5/8” 5/8” 5/8”

3/32” 3/16” 3/16” 3/16” 3/16” 3/16” 3/16” Spline

12 12 12 12 12 12 12 12 12 12 10 10 9

22 (7/8”)

32 (1-1/4”) 41 (1-5/8”)

51 (2”)

50 (1-31/32”)

SW25105 SW25106 SW25105 SW25105 SW25105 SW25105 SW25105

73 (2-7/8”) 73 (2-7/8”)

20mm

3/4”

102 (4”) 102 (4”)

15/16” 15/16” 15/16” 15/16” 15/16”

Spline (10) Spline (14)

SW26000K

80 (3-1/8”)

Spline

It is good boating practice to always carry a spare flexible impeller.

110 (4-5/16”) 110 (4-5/16”)

Spline (14) Spline (10)

248

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