CD54B Vibratory Asphalt Compactor Machine Systems Caterpillar

Pump Control (Electronic Displacement Control) Neutral - Test and Adjust - Solid Drum

Usage:

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Diesel engine exhaust contains products of combustion which may cause personal injury.

Always start and operate the engine in a well ventilated area, and, if in an enclosed area, vent the exhaust to the outside.

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Personal injury can result from rotating and moving parts. Stay clear of all rotating and moving parts.
Never attempt adjustments while the machine is moving or the engine is running unless otherwise specified.
The machine must be parked on a level surface and the engine stopped.

Attach a "Do Not Operate" or similar warning tag to the start switch and controls before servicing, repairing, or making adjustments to the machine.

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Personal injury or death can result from sudden machine movement.
Sudden movement of the machine can cause injury to persons on or near the machine.

To prevent injury or death, make sure that the area around the machine is clear of personnel and obstructions before operating the machine.

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Personal injury can result from hydraulic oil pressure and hot oil.
Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.

Make sure all of the attachments have been lowered, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.

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NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide", for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose of all fluids according to local regulations and mandates.

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Table 1
Required Tools
Tool	Part Number	Description	Qty
A ⁽¹⁾	198-4234	Digital Indicator	1
B ⁽¹⁾	198-4236	Adapter Cable As	2
C ⁽¹⁾	198-4237	Pressure Sensor Gp 0-3500 kPa (0-500 psi)	2
D	348-5430	Multi-Tool Gp	1
E	110-6349	Fitting As	2
F	N/A	Laptop Computer with Plus+1^TM Software	1
G ⁽²⁾	317-7485	Communication Adapter	1
H ⁽²⁾	370-4617	Cable As	1
J ⁽²⁾	327-8981	Cable As	1

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^( 1 )	Tool (A), Tool (B), and Tool (C) are part of the 198-4240 Digital Pressure Indicator Gp .
^( 2 )	Tool (G), Tool (H), and Tool (J) are part of the 317-7484 Communication Adapter Gp

Drive the machine to a smooth, horizontal surface.

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Illustration 1	g03324815

Move propel lever (1) to the NEUTRAL position.

Move parking brake switch (2) to the ON position.

Use throttle control switch (3) in order to operate the engine in ECO mode or in low idle.
Note: Two things indicate when the engine is in ECO mode. First, "ECO" will appear on the display. Second, the second LED next to throttle control switch (3) will be illuminated. Two things indicate when the engine is at low idle. First, "Low Idle" will appear on the display. Second, the first LED next to the throttle control switch will be illuminated.

Move engine start switch (4) to the OFF position.

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Illustration 2	g03324817
Left Side Of The Machine

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Illustration 3	g03324818
Right Side Of The Machine

Remove six bolts (5) and washers. Remove rear access panel (6).

Move engine start switch (4) to the START position. Release the switch when the engine starts.

Move parking brake switch (2) to the OFF position.

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Illustration 4	g03324822

Depress right offset switch (7). Hold the right offset switch until the rear drum reaches the steering stop.

Move parking brake switch (2) to the ON position.

Move engine start switch (4) to the OFF position.

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Illustration 5	g03324827

Unlock latch (8), and open rear engine compartment door (9) on the left side of the machine.

Assemble the tooling. Connect Tool (C) to Tool (B). Assemble both sets of tooling.

Install both sets of Tool (B) on Tool (A) .

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Illustration 6	g03324829

Remove the plug from Port "M5" (10) on the left side of the pump. Install one Tool (E) in Port "M5" (10). Tighten Tool (E) to a torque of 12 N·m (8.9 lb ft).

Connect one Tool (C) on Tool (E) in Port "M5" (10) .

Disconnect machine harness from solenoid (11) .

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Illustration 7	g03324830

Remove the plug from Port "M4" (12) on the right side of the pump. Install other Tool (E) in Port "M4" (12). Tighten Tool (E) to a torque of 12 N·m (8.9 lb ft).

Connect second Tool (C) on Tool (E) in Port "M4" (12) .

Disconnect machine harness from solenoid (13) .

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Illustration 8	g03324832

Assemble the tooling. Connect Tool (H) and Tool (J) to Tool (G). Connect Tool (J) to diagnostic connector (14). Connect Tool (H) to USB port on Tool (F) .

Move engine start switch (4) to the START position. Release the switch when the engine starts.

Operate the engine at low idle for a few minutes. Depress throttle control switch (3) and hold the switch for approximately 2 seconds in order to operate the engine at high idle.
Note: Two things indicate when the engine is at high idle. First, "High Idle" will appear on the display. Second, all three LED's next to throttle control switch (3) will be illuminated.

Monitor the hydraulic oil temperature with Tool (D). Operate the machine until the oil temperature reaches 43 ± 5.6 °C (110 ± 10 °F).

Use throttle control switch (3) in order to operate the engine in ECO mode or in low idle.
Note: Two things indicate when the engine is in ECO mode. First, "ECO" will appear on the display. Second, the second LED next to throttle control switch (3) will be illuminated. Two things indicate when the engine is at low idle. First, "Low Idle" will appear on the display. Second, the first LED next to the throttle control switch will be illuminated.

Move parking brake switch (2) into the OFF position.

Note: First time users need to perform the tasks in the Communication and Connections Wizard. This wizard allows the Windows^® operating system to recognize the USB device. Follow the on screen instructions.

Launch the Plus+1^TM program on the computer.

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Illustration 9	g03324833

Click on "Status" button (15) .

Check "Active Codes" (16). Clear any open "Active Codes".

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Illustration 10	g03324834

Click on "Hydraulics" icon (17) .

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Illustration 11	g03324835

Click on "Piston Pump Neutral Test" (18) .

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Illustration 12	g03324837

Click on "Enable" icon (19) .

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Illustration 13	g03324910

When "Piston Pump Neutral Test" (18) is in "Enabled" mode (20), the Plus+1^TM program is launched.

Record differential pressure on Tool (A). Differential pressure should be less than 69 kPa (10 psi).

Move parking brake switch (2) into the ON position.

Move engine start switch (4) to the OFF position.

Remove the tooling from Port "M5" (10) and Port "M4" (12). Install the plugs in Port "M5" (10) and Port "M4" (12). Tighten the plugs to a torque of 12 N·m (8.9 lb ft).

Connect machine harness to solenoid (13) .

Connect machine harness to solenoid (11) .

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Illustration 14	g03324911

Remove the plug from Port "M4" (21) on the left side of the pump. Install one Tool (E) in Port "M4". Tighten Tool (E) to a torque of 12 N·m (8.9 lb ft).

Connect Tool (C) to Tool (E) in Port "M4" (21).

Disconnect machine harness from solenoid (22) .

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Illustration 15	g03324912

Remove the plug from Port "M5" (24) on the right side of the pump. Install other Tool (E) in Port "M5". Tighten Tool (E) to a torque of 12 N·m (8.9 lb ft).

Connect Tool (C) to Tool (E) in Port "M5" (24) .

Disconnect machine harness from solenoid (23) .

Move engine start switch (4) to the START position. Release the switch when the engine starts.

Move parking brake switch (2) into the OFF position.

Repeat Step 28 through Step 33 in order to launch the Plus+1^TM program on the computer.

Record differential pressure on Tool (A). Differential pressure should be less than 69 kPa (10 psi).

Move parking brake switch (2) into the ON position.

Move engine start switch (4) to the OFF position.

Remove the tooling from Port "M5" (24) and Port "M4" (21). Install the plugs in Port "M5" and Port "M4". Tighten the plugs to a torque of 12 N·m (8.9 lb ft).

Connect machine harness to solenoid (22) .

Connect machine harness to solenoid (23) .

Disconnect tooling from diagnostic connector (14) .

If the differential pressure measured in either Step 34 or in Step 49 is greater than 69 kPa (10 psi), remove the pump and adjust the electronic displacement control on a hydraulic test bench. Refer to Disassembly and Assembly,, " "Piston Pump (Vibratory) Remove and Install"". Refer to Bench Test Procedure,, REHS3447, " "Bench Test Procedure for Hydraulic Piston Pumps"". If the differential pressure is less than 69 kPa (10 psi), go to Step 57.