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Verfügbare Sprachen
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Instructions for using the Hydraulic Flow Meter
1. Open loading valve by rotating counter-clockwise.
2. Start pump momentarily to ensure oil flows freely through the hydraulic system, then run
pump at maximum speed. Do not change pump speed while turning the loading valve.
3. Slowly close the loading valve to develop the desired pressure. Run the machine until
normal operating temperature is reached i.e. typically 115 - 140°F (45 - 60°C).
4. Open the loading valve to read the flow at minimum pressure.
5. Close loading valve slowly to increase pressure. Note reduction of flow as the pressure is
increased to maximum pump pressure to determine pump condition.
Pump
Pump
Typical Tests
Pump Test
Cylinder
Tank
OTC 4277
°F
°C
175
80
70
150
60
125
50
100
40
30
75
20
50
10
Overall System Test
Cylinder
Tank
OTC 4277
°F
°C
175
80
150
70
60
125
50
100
40
30
75
20
50
10
Directional Valve
Relief
Valve
Test Hose
Relief Valve
3
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