Terex C5000 Series Manual de usuario

TEREX UTILITIES TECHNICAL SUPPORT TEAM

PHONE: 1-844-TEREX4U (1-844-837-3948) | EMAIL: [email protected]

MODEL(S): TOOLS NEEDED:SERVICE CALL:

NO.

ADJUSTING SYSTEM RELIEF

PRESSURE C4000, C5000, C6000, GENERAL HYDRAULIC PRESSURE GAUGE

(0-5000 PSI)

9/16” OR ¾” WRENCH

SET OF STANDARD ALLEN

WRENCHES

ADJUSTING SYSTEM RELIEF PRESSURE

DANGER

Failure to obey the instructions and safety

rules in the appropriate Operator’s Manual and

Service Manual for your machine will result in

death or serious injury.

Many of the hazards identied in the

Operator’s Manual are also safety hazards

when maintenance and repair procedures are

performed.

DO NOT PERFORM

MAINTENANCE UNLESS:

√You are trained and qualied to perform

maintenance on this machine.

√You read, understand and obey:

•manufacturer’s instructions and safety rules

•employer’s safety rules and worksite

regulations

•applicable governmental regulations

√You have the appropriate tools, lifting

equipment and a suitable workshop.

The information contained in this Tech Tip is a

supplement to the Service Manual. Consult the

appropriate Service Manual of your machine for

safety rules and hazards.

PAGE 2 OF 7

TECH TIP 02 | RELEASED 02.07.2022 | VERSION 1.0

PAGE 3 OF 7

CONTENTS

TECH TIP#02

TOC

4| Determine gauge installation location

INTRODUCTION

STEP 1

5| Test Ports

| Install the gauge

STEP 2 - STEP 3

6| Verify pressure setting and adjustment

STEP 4

TECH TIP 02 | RELEASED 02.07.2022 | VERSION 1.0

When setting system relief, it must be veried

that system pressure is present at the base

of the lift cylinders. If system pressure is not

present or improperly set, the unit may not

be able to lift the capacities shown on the

load chart. This is the reason why pressure is

checked at the base of the lift cylinders or by

hooking into Hydraulic Overload Protection

(HOP).

INTRODUCTION

• Repair procedures shall be completed by a

person trained and qualied on the repair of this

machine.

• Immediately tag and remove from service a

damaged or malfunctioning machine.

• Read this procedure completely and adhere

to the instructions. Attempting shortcuts may

produce hazardous conditions.

• Consult your unit specic maintenance manual

STEP 1

Determine gauge installation location:

• Units with HOP, use port G1 on HOP manifold

• Units without HOP, tee gauge in the control line for lift up between cylinder and control valve

FIGURE 1

PAGE 4 OF 7

Escaping uid under pressure can penetrate skin causing serious injury.

Relieve pressure before disconnecting hydraulic lines. Keep away from

leaks and pin holes. Use a piece of cardboard or paper to search for leaks.

DO NOT use your hand.

TECH TIP 02 | RELEASED 02.07.2022 | VERSION 1.0

STEP 2

Install the gauge in the location indicated in

step one. The boom must be supported by the

boom rest or the lift cylinders must be retracted

fully before attempting to install the gauge.

FIGURE 2 - Test Port

FIGURE 3 - Test Port

485770 HOP Manifold Shown for G1 Location Individual sensing valve may also be located

under the rider seat on the command post

STEP 3

Operate unit to bring hydraulic uid to normal

operating temperature.

PAGE 5 OF 7

TECH TIP 02 | RELEASED 02.07.2022 | VERSION 1.0

STEP 4

Raise boom to full elevation or attach to a solid object with the load line. The object must be heavier

that what is indicated on the load chart.

Set throttle to maximum setting and engage lift up control. Verify on the gauge that the pressure is

set to what is shown on the unit placard.

If pressure is not at desired level, locate return manifold in pedestal. (Manifold shown below)

Adjust CW to increase setting or CCW to decrease setting. Adjust to specication listed on the unit

placard.

Return manifold with the current style system

relief cartridge.

PAGE 6 OF 7

FOR FURTHER ASSISTANCE,

CONTACT THE TEREX UTILITIES TECHNICAL SUPPORT TEAM

PHONE: 1-844-TEREX4U (1-844-837-3948) | EMAIL: [email protected]

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