Engine Performance - Test - Engine Speed
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303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
[UENR4294]
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Pump Control (Main Hydraulic)
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Travel on Level Ground - Test
BASIC ENGINE
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Engine Performance - Test - Engine Speed
303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
Engine Performance - Test - Engine Speed
1.1. Specification
2.1. Required Tools
3.1. Test Procedure
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Engine Speed | ||||
---|---|---|---|---|
Item | Specification | |||
303.5E2 | 304E2 | 305E2 | 305.5E2 | |
High Idle(1) | 2370 - 2470 rpm | 2360 - 2470 rpm | 2360 - 2460 rpm | 2540 - 2640 rpm |
Low Idle(1) | 1325 - 1425 rpm | 970 - 1120 rpm | 900 - 1050 rpm | 900 - 1050 rpm |
Auto Idle(1) | 1325 - 1425 rpm | 970 - 1120 rpm | 900 - 1050 rpm | 900 - 1050 rpm |
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(1) | No load |
Note: A specification is the performance that can be expected for a new machine.
Note: To achieve full rpm listed, uninstall "Power on Demand" using the Cat® Electronic Technician (Cat ET) Service Tool.
Show/hide table
Required Tools | ||
---|---|---|
Part Number | Description | Qty |
1U-6602 | Photo Tach | 1 |
- Start the engine.
- Position the machine on level ground.
- Increase the hydraulic oil temperature to
50° ± 10°C (122° ± 18°F) . - Use 1U-6602 Photo Tach to read the engine speed. Refer to Table 1 for the specifications for engine speed at the desired engine operation.
Note: When checking engine speed, stall the Auxiliary circuit using the thumb wheel
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303.5E2 CR, 304E2 CR, 304.5E2 XTC, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Hydraulic System
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