330F MHPU Mobile Hydraulic Power Unit Machine System Engine Performance - Test - Engine Speed Caterpillar


Engine Performance - Test - Engine Speed
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330F MHPU Mobile Hydraulic Power Unit Machine System [M0067808]
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

Specification

Table 1
"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   
(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.

Table 2
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 (%) 
900  20.0  900  20.0  900  20.0 
1000  33.0  1000  33.0  1000  33.0 
1150  46.0  1150  46.0  1150  46.0 
1260  60.0  1260  60.0  1260  60.0 
1360  76.0  1320  73.0  1320  69.0 
1450  87.0  1380  85.0  1380  74.0 
1530  94.0  1440  94.0  1440  78.0 
1600  97.0  1490  98.0  1490  80.0 
1680  99.0  1550  102.0  1550  82.0 
10  1750  100.0  1600  105.0  1600  85.0 

Introduction

The following test is used to measure engine speed at the flywheel housing.

Required Tools



Illustration 1g02535237
Tooling (C)

Table 3
Tooling  Item  QTY  Part
Number 
Description 
  348-5430  Multi-Tool Gp 
  C1  285-0908  Multi-Tool 
C2 6V-2198  Cable As 
C3 9U-5140  Photo Pickup 
C4 6V-3137  Base 
C5 1U-6605  Reflective Tape 
C6 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.

Machine Preparation

  1. Position the machine on level ground.

  2. Stop the engine.

  3. Install tooling (C) on the engine.

Test Procedure

  1. Start the engine.

  2. Increase the hydraulic oil temperature to 55° ± 5°C (131° ± 9°F).

  3. 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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