Setup and Operation of the 368-8645 Tool Kit (CRANKCASE PRESSURE){1317} Caterpillar

Caterpillar Products: All

Introduction

European Union Compliant CE Marked

A non-exhaustive list of operations that may cause product damage are identified by "NOTICE" labels on the product and in this publication.

Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. The warnings in this publication and on the product are, therefore, not all inclusive. If a tool, procedure, work method, or operating technique that is not recommended by Caterpillar is used, the operator must be sure that the procedures are safe. The operator must also be sure that the product will not be damaged or made unsafe by any unspecified procedures.

The information, specifications, and illustrations in this publication are based on information that was available at the time that the publication was written. The specifications, torques, pressures, measurements, adjustments, illustrations, and other items can change at any time. These changes can affect the service that is given to the product. Obtain the complete and most current information before you start any job.

When replacement parts are required for this product Caterpillar recommends using Caterpillar replacement parts or parts with equivalent specifications including, but not limited to, physical dimensions, type, strength, and material.

Important Safety Information

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Think Safety

Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. A person must be alert to potential hazards. This person should also have the necessary training, skills, and tools to perform these functions properly.

Improper operation, lubrication, maintenance, or repair of this product can be dangerous and could result in injury or death.

Do not operate or perform any lubrication, maintenance, or repair on this product until you have read and understood the Tool Operating Manual.

Safety precautions and warnings are provided in this manual and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons.

The hazards are identified by the "Safety Alert Symbol" and followed by a "Signal Word" such as "DANGER","WARNING", or "CAUTION". The Safety Alert "WARNING" label is shown below.

General Information Section

Introduction

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(A) Small Orifice (B) Large Orifice (C) Tubing (D) 368-8645 Tool Kit (CRANKCASE PRESSURE) (E) Carrying Case

The 368-8645 Tool Kit (CRANKCASE PRESSURE) measures gauge and differential pressure in the range of ±0.13800 bar (2.0 psi). The meter has 11 units of measure and a differential input that has quick disconnect fittings.

Advanced features include DATA HOLD, MIN-MAX-AVG RECORD mode, ZERO/OFFSET, AUTO POWER OFF, and USB PC interface.

The instrument is shipped tested and calibrated.

Additional Contact Information

For additional product support questions concerning this tool, contact the Caterpillar Dealer Service Tools Hotline at:

Nomenclature

Specifications

General Specifications

Range Specifications

Components

Meter Description

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(1) P2 Input (2) AC Adapter (3) P1 Input (4) LCD Display, indicates the measurement data, unit of measure, elapsed timer, and function symbols as described in this manual (5) USB PC interface jack (3.5mm) – For use with data acquisition software. (6) "UNIT" Button, press to select the unit of measure (7) "DIF" Button, press to display differential pressure. Also used to OFFSET the displayed readings. (8) "RECORD" Button, press to access the "MIN/MAX/AVG" recording mode. (9) "HOLD / ZERO" Button, press to freeze the displayed reading. Also used to zero the display (press and hold until display shows all zeroes). (10) "BACKLIGHT" Button, press to switch the display backlight ON. The backlight will automatically turn OFF after 40 seconds. (11) "POWER" Button, press to turn the meter ON or OFF. (12) Battery Compartment (on rear)

Illustration 4	g02355127
(13) USB data output active (14) Differential Pressure Mode (15) Data Hold Mode (16) Primary display (17) Record Mode (18) MAX/MIN/AVG indicators (19) Low Battery Indicator (20) Pressure unit of measure (21) Elapsed Timer

Setup And Operation

Setup

Illustration 5	g02370567

Note: The meter must be set to the inches H₂O mode.

Note: The overall system accuracy for the intended use is ± 20%.

Choose the proper orifice for your application.

The Small Orifice (A) is for use with engines with 400 hp and less. The Large Orifice is for engines with greater than 400 hp.

Once a reading of inches is obtained with the meter, convert to cfm using the charts in section titled ""Charts" " in this manual. There are charts for engines 400 hp and less, and engines over 400 hp.

Operation

1. Obtain a reading of inches H₂O with meter.

   Note: Do Not use the MIN/MAX AVG function for this reading.

2. Convert reading to Cubic Feet Per Minute (CFM) using the charts in section titled ""Charts" " in this manual. There are charts for engines 400 hp and less, and engines over 400 hp.

3. Multiply CFM by 60 (CFM x 60) to convert to Cubic Feet Per Hour.

Charts

Illustration 6	g02366736
Engines 400 hp and less

Illustration 7	g02366737
Engines 400 hp and greater

Meter Power

The 368-8645 Tool Kit (CRANKCASE PRESSURE) uses a 9V battery for power. If the meter does not switch on when the "POWER" button is pressed or if the display shows "BAT", replace the battery.

When the "POWER" button is pressed, the meter performs a short self-test and reverts to the settings in place when the meter was last turned off.

Automatic Power-off Feature

In order to conserve battery life, the meter has an automatic power-off feature (after 20 minutes). To defeat this feature, press and hold the "HOLD/ZERO" (9) button while turning the meter on. Release the "HOLD/ZERO" (9) button when "'n'" appears on the display. The meter will now remain on until the user turns the meter off or until the battery weakens. The Auto Power OFF feature will be reactivated the next time the meter is turned off and then on.

Fittings Connection

Connect tubing to the P1 (3), P2 (1) (or both) input ports. If both inputs are used (differential mode), the meter displays a positive pressure reading if the P1 (3) pressure is greater than P2 (1) and a negative reading if P2 (1) is greater than P1 (3) .

Zero Adjust and Offset function

To ZERO the meter, before use and without fittings attached to the meter, press and hold the "HOLD/ZERO" (9) button for 3 seconds or until the display shows all zeros (0000) then "0.00".

To OFFSET meter readings: Press the "DIF" (7) button while taking a measurement. Subsequent readings will represent the difference between the current measurement and the measurement that was on the display when the "DIF" (7) button was pressed.

MIN-MAX-AVG Record Mode with Elapsed Timer

The "RECORD" (8) function tracks the maximum "MAX" (6), minimum "MIN" (18), and average "AVG" (18) readings with a time stamp. The elapsed timer is displayed on the lower right-hand corner of the LCD. The elapse timer informs the user of the time a "MAX" (18) or "MIN" (18) reading was recorded.

• Press the "RECORD" (8) button once. The "REC" (17) indicator will appear on the display and the displayed elapsed timer will start (HH:MM:SS format [hours:minutes:seconds]).

• Press the "RECORD" (8) button again to view the highest "MAX" reading recorded since the "RECORD" (8) button was first pressed. The "MAX" (18) indicator and maximum reading will appear on the display. The "Elapsed Timer" (21) will show the time of the "MAX" event.

• Press the "RECORD" (8) button again, the "MIN" (18) indicator and the minimum value will appear on the display. The elapsed timer will show the time of the "MIN" event.

• Press the "RECORD" (8) button again, the "AVG" (18) indicator and the average value will appear on the display. The elapsed timer will continue to run.

• To return to normal operation, press and hold the "RECORD" (8) button until the display indicators "REC", "MAX", and so on, switch off.

Note: In the "RECORD" (8) mode, the "BACKLIGHT" (10) and the "POWER" (11) buttons are the only available functions.

USB PC Interface

The meter has a built-in USB PC (5) port for use with the Manometer Data Acquisition software. The software allows the user to view, save, export, and print readings from the 368-8645 Tool Kit (CRANKCASE PRESSURE). Refer to the documentation included with the software for complete details.

Displayed Error Codes

The following codes are displayed when the meter encounters an error.

• "ERR 1" Pressure input exceeds specified limits.

• "ERR 2" Pressure input is too low to read.

• "ERR 3" The Differential Pressure input exceeds specified limits.

• "ERR 4" The Differential Pressure input is too low to read.

Maintenance

Battery Replacement

When the low battery indicator "BAT" appears on the display, or if the meter does not switch on when the "POWER" (11) button is pressed, the battery must be replaced.

1. Open the battery compartment by sliding the meter rear panel in the direction of the embossed arrow.

2. Replace the 9V alkaline battery.

3. Replace the battery compartment cover.

Calibration and Repair Services

Extech offers repair and calibration services for this product. Extech also provides NIST certification for most products. Call the Customer Care Department for information on calibration services available for this product. Extech recommends that annual calibrations be performed to verify meter performance and accuracy.