A New Washer Prevents Oil Leakage From The Hydraulic Pump {507G, 5084}
- Mini Hydraulic Excavator:
- 304 CR (S/N: NAD1-UP; BTN1-UP)
Description of Change: The original washer may have been damaged during testing at the factory. Use the new washer with the following procedure in order to prevent further oil leaks.
Adaptable To:
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| Effectivity of New 196-3905 Washer | ||
| Model | Adaptability | Effectivity |
| 304 CR | S/N:NAD1-1036 S/N:BTN1-586 |
S/N:NAD1037-UP S/N:BTN587-UP |
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| Illustration 1 | g01081469 |
Location of the hydraulic pump | |
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| Illustration 2 | g01081468 |
Location of the pressure regulator's set screw | |
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| Illustration 3 | g01080856 |
(1) 224-0038 Nut (2) 196-3905 Washer | |
- Remove nut (1) and washer (2) from the regulator.
Note: Take care not to alter the position of the regulator's screw. Altering the position of the regulator's screw may result in loss of hydraulic power.
- Clean the nut and the screw.
- Apply 3S-6252 Sealant to the screw.
- Install a replacement 196-3905 Washer. Make sure that the rubber portion contacts the pump.
- Install nut (1). Torque the nut to 18 ± 2 N·m (13 ± 1 lb ft).
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