Storing Pump For Winterization; Shaft Seal Change Instructions; Removing The Impeller - Hayward EcoStar SP3400VSP Owner's Manual

ATTENTION
ATTENTION
toxic and will not damage plastic system components; other anti-freezes are highly toxic and may damage plastic
components in the system.
Drain all water from pump and piping when expecting freezing temperatures or when storing pump for a long time
(see instructions below). Gravity drain system as far as possible.
Keep motor dry and covered during storage. To avoid condensation/corrosion problems, do NOT cover or wrap pump
with plastic film or bags.

7.1. Storing Pump For Winterization

WARNING
pump. Failure to disconnect power may result in serious personal injury or death.
1. Drain water level below all inlets to the pool.
2. Remove drain plugs and strainer cover from strainer housing. (See "Parts Diagram" in section 9.1 of this manual
for pump component locations.)
3. Disconnect pump from mounting pad, wiring (after power has been turned OFF), and piping.
4. Once the pump is fully drained of water, re-install the strainer cover and drain plugs. Store pump in a dry area.
8.

Shaft Seal Change Instructions

When servicing electrical equipment, basic safety precautions should always be observed including the following.
Failure to follow instructions may result in injury.
• WARNING
•
Disconnect all electrical power service to pump before beginning shaft seal replacement.
•
Only qualified personnel should attempt rotary seal replacement. Contact your local authorized Hayward Dealer or
service center if you have any questions.
•
See "Parts Diagram" Figure 9.1-1 for pump component locations.
Exercise extreme care in handling both the rotating and the stationary sections of the two-part replacement seal. Foreign
matter or improper handling will easily scratch the graphite and ceramic sealing surfaces.
* Refer to Figure 8.6-1 for motor drive removal.
8.1. Removing the Motor Assembly
1. Remove the six (6) 5/16" x 2" hex head bolts (item #17), which hold the motor assembly to the pump/strainer
housing (item #3), using a 1/2" wrench or socket.
2. Slide the motor assembly out of the pump/strainer housing (item #3), exposing the diffuser (item #9). Remove
the two diffuser screws (item #7), and pull the diffuser (item #9) off of the seal plate (item #15) to expose the
impeller (item #12).

8.2. Removing the Impeller

3. Remove the motor fan shroud (item #24) by removing the four (4) screws and pulling the shroud away from the
motor.
4. To prevent the motor shaft from turning, secure using a 5/16" hex wrench in the socket on the motor shaft.
Page 23 of 32
– Allowing the pump to freeze with water in it will void the warranty.
– Use ONLY propylene glycol as antifreeze in your pool/spa system. Propylene glycol is non-
– To avoid dangerous or fatal electrical shock hazard, turn OFF power to motor before draining
IMPORTANT SAFETY INSTRUCTIONS
PLEASE READ AND FOLLOW ALL INSTRUCTIONS
– To reduce risk of injury, do not permit children to use this product.
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
EcoStar Variable Speed Pump IS3400VSP Rev-B