Change The Hydraulic Fluid; Change The Hydraulic Fluid Filter - Wallenstein WX540 Operator's Manual

Service and Maintenance

9.5 Change the Hydraulic Fluid

Change the hydraulic fluid at 100 hours of operation or
annually.
• Hydraulic fluid type: Dexron® III ATF
• Hydraulic reservoir volume: 1.8 US gal (7 L). An extra
1/2 gal (1–2 liters) may be required to top up the circuit.
CAUTION!
Risk of burns to exposed skin.
Hydraulic oil becomes hot during
operation. Hoses, lines, and other
parts become hot as well. Wait for
the oil and components to cool
before starting any maintenance or
inspection work.
The hydraulic tank drain plug is located under the machine. A
3/8" hex key is required to remove it.
Figure 23 – Hydraulic tank drain plug
Procedure
1. Place a drain pan of suitable capacity under the drain plug.
2. Clean the area around drain and remove the drain plug.
3. Allow the fluid to fully drain, then flush the tank.
4. Dispose of used fluid in an environmentally safe manner.
5. Replace the plug and fill the tank with clean fluid, up to the
full mark on the dipstick.
6. Start the machine up and cycle hydraulic functions to purge
air from the system.
7. Stop the engine and recheck the fluid level. Top up to the
full mark.

9.6 Change the Hydraulic Fluid Filter

Change hydraulic fluid filter at 100 hours of operation or
annually.
The filter is located on side of the hydraulic fluid tank.
Risk of burns to exposed skin.
Hydraulic oil becomes hot during
operation. Hoses, lines, and other
parts become hot as well. Wait for
the oil and components to cool
before starting any maintenance or
inspection work.
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Procedure
1. Place a drain pan of suitable capacity under the filter head.
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2. Remove the fluid filter. An oil filter wrench may be required.
3. Apply a light coat of clean fluid to the seal on the new filter
and install it. Tighten by hand only.
4. Run the machine for 1–2 minutes operating the cylinder.
Check filter head for fluid leaks.
5. If a leak is found, shut off the machine and correct it.
6. Check hydraulic reservoir fluid level. Top up as required.
7. Dispose of spilled fluid in an environmentally safe manner.
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CAUTION!
Figure 24 – Hydraulic fluid filter
WX540, WX540L
Log Splitter
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