MAINTENANCE
WB140-2N, WB150-2N 3-49
CHANGING HYDRAULIC TRANSMISSION OIL
When changing the transmission oil, also change the filter (See
“CHANGING HYDRAULIC TRANSMISSION FILTER” on page 3-
50).
Proceed as follows:
1. Open the engine hood.
2. Remove drain plug (1) and let the oil flow into a container with
suitable capacity, using a 27 mm wrench.
3. Carefully remove the filter and replace it. (See “CHANGING
HYDRAULIC TRANSMISSION FILTER” on page 3-50).
4. Reinstall plug (1) and pour oil until it reaches the MIN. level on
dipstick (2).
5. Start engine and let it idle to fill the converter and internal system.
6. While engine is idling, add oil until the MIN. level is reached again.
7. When oil reaches a temperature of approximately 50°C (122°F), add oil until it reaches the MAX. mark. For adding oil,
See “FUEL, COOLANT, AND LUBRICANTS” on page 3-7.
8. Close the engine hood.
• Perform this operation with the machine parked on level
ground and raised loader arm with engaged safety lock.
• Hydraulic transmission oil must be drained at operating
temperature, which is very high, and may cause serious
burns, wear insulating gloves, goggles and safety shoes.
• Immediately clean any area dirty with oil.
• Oils, filters, coolant, and the battery are considered spe-
cial waste and must be collected and disposed of
according to all anti-pollution regulations in force.
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