Specifications
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312F and 313F Excavator Machine Systems
[M0065826]
312F and 313F Excavator Machine Systems
Gear Pump (Pilot) - Test
312F and 313F Excavator Machine Systems
Relief Valve (Main) - Test and Adjust
HYDRAULIC SYSTEM
349F and 352F Excavators Hydraulic System
Visual Inspection
312F and 313F Excavator Machine Systems
Solenoid Valve (Proportional Reducing) - Calibrate - Power Shift Pressure
312F and 313F Excavator Machine Systems
Solenoid Valve (Proportional Reducing) - Calibrate - Negative Flow Control
312F and 313F Excavator Machine Systems
Solenoid Valve (Proportional Reducing) - Calibrate - Boom Down Regeneration
312F and 313F Excavator Machine Systems
Operational Checks
312F and 313F Excavator Machine Systems
Specifications
312F and 313F Excavator Machine Systems
Specifications
1.1. Relief Valve Settings
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| Illustration 1 | g06020419 |
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Relief valve locations (1) Main relief valve (2) Boom cylinder line (head end) (3) Boom cylinder line (rod end) (4) Stick cylinder line (head end) (5) Stick cylinder line (rod end) (6) Bucket cylinder line (head end) (7) Bucket cylinder line (rod end) (8) Swing (right) (9) Swing (left) (10) Left travel crossover relief valve for forward travel (upper valve) (11) Left travel crossover relief valve for reverse travel (lower valve) (12) Right travel crossover relief valve for forward travel (upper valve) (13) Right travel crossover relief valve for reverse travel (lower valve) (14) Pilot relief valve (15) Main control valve (16) Pilot filter (17) Travel motor (right) (18) Travel motor (left) (19) Swing motor | |
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| Relief Valve | New
Rebuild(1) |
Service Limit(2) | ||
|---|---|---|---|---|
| Engine Speed | ||||
| Main | Implement | Speed Dial "10"
AEC switch OFF |
|
|
| Travel | |
|
||
| Boom | Head End | Speed Dial "10"
AEC switch OFF |
|
Greater than |
| Rod End | |
Greater than |
||
| Stick | Head End | Speed Dial "10"
AEC switch OFF |
|
Greater than |
| Rod End | |
Greater than |
||
| Bucket | Head End | Speed Dial "10"
AEC switch OFF |
|
Greater than |
| Rod End | |
Greater than |
||
| Bucket (Demolition for XX362) | Head End | Speed Dial "10"
AEC switch OFF |
|
|
| Rod End | |
|
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| Swing | Right | Speed Dial "10"
AEC switch OFF |
|
|
| Left | ||||
| Left Crossover | Forward | Speed Dial "10"
AEC switch OFF |
|
Greater than |
| Reverse | ||||
| Right Crossover | Forward | |||
| Reverse | ||||
| Pilot | Speed Dial "10"
AEC switch OFF |
|
||
| Blade Main | Speed Dial "10"
AEC switch OFF |
|
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| Blade Line | Head End | Speed Dial "10"
AEC switch OFF |
|
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| (1) | A New specification is the performance that can be expected for a new machine. A “Rebuild” specification is the performance that can be expected after rebuilding the components of a system. |
| (2) | Performance beyond “Service Limit” specifications is an indication of the following problems: improper adjustment, wear, damage of relief valves and damage of pumps. |
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| Relief Valves | Pressure change With One Turn Of Adjustment Screw(1) | Torque for Locknut |
|---|---|---|
| Main valve | |
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| Line relief valve | |
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| Travel crossover relief valve | |
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| Pilot relief valve | |
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| (1) | Pressure values are approximate values. Use a pressure gauge for adjustment. |
Information System:
312F and 313F Excavator Machine Systems
Gear Pump (Pilot) - Test
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Final Drive