How do I change the oil in an Aquascape PL Series Pump?

Aquascape PL Series Pumps use white mineral oil. Replace the lubricant every 3,000 operating hours or 12 months, whichever comes first.

Inspect the lubricant

1. Remove the oil plug, which is the Phillips-head bolt.
2. Tilt the pump and drain a small amount of lubricant.
3. Examine the lubricant:
   • If it appears milky white or contains water, the mechanical seal may be faulty.
   • The pump will need to be disassembled and repaired if the lubricant compartment contains milky lubricant.
4. Replace the oil-plug gasket after inspecting the lubricant.

Change the lubricant

1. Remove the oil plug.
2. Drain all the old lubricant from the pump.
3. Refill the pump with white mineral oil. Use the correct amount for your model:
   • 3-PL: 5.1 fluid ounces (150 ml)
   • 3-PL2: 4.2 fluid ounces (125 ml)
   • 5-PL/9-PL/3-PN/4-PN/8-PN/12-PN: 8.1 fluid ounces (240 ml)
4. Replace the oil-plug gasket.
5. Reinstall the oil plug.

Dispose of used lubricant and other waste through a qualified agent and in accordance with applicable laws.

Related replacement parts

• Mechanical seal: Replace when the lubricant in the oil compartment becomes milky.
• Lubricant: Replace every 3,000 operating hours or 12 months, whichever comes first.
• Gasket: Replace each time the pump is disassembled or the lubricant is inspected or changed.