Mec Speed Level 2684 ES, Руководство по обслуживанию и запасным частям

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“3084 Speed Level™ Sigma Lift” Service and Parts Manual November 2009
Page 4b-38
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R O U B L E S H O O T I N G
- 3 0 8 4 E S
M O D E L
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Y D R A U L I C
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R E S S U R E
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D J U S T M E N T
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D J U S T M E N T S
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The Hydraulic Pump used in this model is not adjustable.
Refer to "Figure 4b-12:Adjustable Valves Location - 3084ES" on page 4b-37.
See Section 5 - Schematics for correct pressure settings.
Main Relief (RV7)
• Disconnect forward or reverse coil of drive valve.
• Energize drive function by moving joystick in the direction of the already disconnected coil.
• Hold the switch for 10 seconds to get an accurate reading on the pressure gauge.
• If pressure is LOW, adjust main relief valve ¼ turn clockwise and recheck.
• If pressure is HIGH, adjust main relief valve ¼ turn counterclockwise and recheck.
• Repeat until correct.
Lift Relief (RV1)
• Move the platform to full height with no load on platform .
• Hold the switch for 10 seconds to get an accurate reading on the pressure gauge.
• If pressure is LOW, adjust lift relief valve ¼ turn clockwise and recheck.
• If pressure is HIGH, adjust lift relief valve ¼ turn counterclockwise and recheck.
• Repeat until correct.
Steering Relief (RV2)
• Energize the steering to full left.
• Hold the switch for 10 seconds to get an accurate reading on the pressure gauge.
• If pressure is LOW, adjust steering relief valve ¼ turn clockwise and recheck.
• If pressure is HIGH, adjust steering relief valve ¼ turn counterclockwise and recheck.
• Repeat until correct.