Engine Performance - Test - Engine Speed
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330F MHPU Mobile Hydraulic Power Unit Machine System
[M0067808]
330F MHPU Mobile Hydraulic Power Unit Machine System
Pump Control (Output Flow) - Test - Two Pump Calibration
330F MHPU Mobile Hydraulic Power Unit Machine System
Power Shift Pressure - Check
BASIC ENGINE
330F MHPU Mobile Hydraulic Power Unit Machine System
Engine Performance - Test - Engine Speed
1.1. Specification
2.1. Introduction
3.1. Required Tools
4.1. Machine Preparation
5.1. Test Procedure
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"Engine Performance - Test (Engine Speed)" (HP Mode) | ||||||
---|---|---|---|---|---|---|
Conditions | Specifications | |||||
Engine | "AEC" Switch Position | "Engine Speed Dial" Position | Time (sec) | New | Service Limit | Actual |
No load | OFF | 10 | 0 to 5 | 1750 ± 50 rpm | 1750 ± 50 rpm | |
OFF | 10 | > 5 | 1650 ± 50 rpm | 1650 ± 50 rpm | ||
ON | 10 | > 5 | 1000 ± 50 rpm | 1000 ± 50 rpm | ||
OFF | 1 | > 5 | 900 ± 50 rpm | 900 ± 50 rpm | ||
One touch low idle | > 0 | 1000 ± 50 rpm | 1000 ± 50 rpm | |||
Load(1) | OFF | 10 | > 3 to 5 | 1750 ± 50 rpm | ≥1700 rpm |
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(1) | Two pump main relief (Boom UP) |
Note: A New specification is the performance that can be expected for a new machine. Performance beyond the Service Limit is an indication of these problems: improper maintenance or adjustment, component wear, and failure.
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Corresponding Engine RPM and Torque Output for Each Engine Speed Dial Position (No Load Condition) | ||||||
---|---|---|---|---|---|---|
Engine Speed Dial Position | High Hydraulic Power Mode | Standard Mode | Economy Mode | |||
Engine RPM | Torque Output (%) | Engine RPM | Torque Output (%) | Engine RPM | Torque Output (%) | |
1 | 900 | 20.0 | 900 | 20.0 | 900 | 20.0 |
2 | 1000 | 33.0 | 1000 | 33.0 | 1000 | 33.0 |
3 | 1150 | 46.0 | 1150 | 46.0 | 1150 | 46.0 |
4 | 1260 | 60.0 | 1260 | 60.0 | 1260 | 60.0 |
5 | 1360 | 76.0 | 1320 | 73.0 | 1320 | 69.0 |
6 | 1450 | 87.0 | 1380 | 85.0 | 1380 | 74.0 |
7 | 1530 | 94.0 | 1440 | 94.0 | 1440 | 78.0 |
8 | 1600 | 97.0 | 1490 | 98.0 | 1490 | 80.0 |
9 | 1680 | 99.0 | 1550 | 102.0 | 1550 | 82.0 |
10 | 1750 | 100.0 | 1600 | 105.0 | 1600 | 85.0 |
The following test is used to measure engine speed at the flywheel housing.
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Illustration 1 | g02535237 |
Tooling (C) |
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Tooling | Item | QTY | Part
Number |
Description |
---|---|---|---|---|
C | 348-5430 | Multi-Tool Gp | ||
C1 | 1 | 285-0908 | Multi-Tool | |
C2 | 1 | 6V-2198 | Cable As | |
C3 | 1 | 9U-5140 | Photo Pickup | |
C4 | 1 | 6V-3137 | Base | |
C5 | 1 | 1U-6605 | Reflective Tape | |
C6 | 1 | 6V-3138 | Extension |
Reference: Refer to Tool Operating Manual, NEHS1087 for operating instructions for the 348-5430 Multi-Tool Gp.
Note: Use Software License Card, NETG5049 with part number 348-5430 Multi-Tool Gp.
- Position the machine on level ground.
- Stop the engine.
- Install tooling (C) on the engine.
- Start the engine.
- Increase the hydraulic oil temperature to
55° ± 5°C (131° ± 9°F) . - Read the engine speed display (rpm) on the multi-tool. Refer to Table 1 for the specifications for engine speed at the desired engine operation.
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