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TECH TIP 11 | RELEASED 02.28.2022 | VERSION 1.0

STEP 5: Verifying Minimum Parking Brake Force

Remove the hydraulic line from port B on the rotation manifold to brake on rotation gear box. Cap

port B and leave the port on brake open to atmosphere. While monitoring the load cell, operate

winch up to achieve a minimum force of 2000 lb. Do not pull more than 2500 lbs or damage to

the rotation system may occur. The brake should not slip during this test although load value may

decrease as the synthetic rope elongates under load.

If the brake slips during this test, repair as necessary.

Reinstall hydraulic line to brake after performing this test.

Do not exceed 2,500 lbs. of side load or damage may occur.

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Содержание C5000 Series

Страница 1: ... TEREX COM MODEL S TOOLS NEEDED SERVICE CALL NO PLANETARY SLIP DRIVE ROTATION C5000 AFTER 7 03 C6000 AFTER 1 02 C7000 AFTER 10 02 GENERAL AFTER 9 96 GENERAL 95 S WRENCH SET LOAD CELL HYDRAULIC PRESSURE GAUGE SIDE PULL SHEAVE Z653 ALLEN WRENCH SET SUITABLE ANCHOR PLANETARY SLIP DRIVE ROTATION 11 ...

Страница 2: ... 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 mac...

Страница 3: ...ure STEP 1 8 Setting the Minimum Rotation Pressure STEP 2 9 Boom Position STEP 3 10 Connecting the Load line to the Anchor STEP 4 11 Verifying minimum parking brake force STEP 5 12 Setting hydraulic motor force STEP 6 STEP 7 14 Return to service STEP 8 TECH TIP 11 RELEASED 02 28 2022 VERSION 1 0 ...

Страница 4: ...The rotation port relief valves limit the maximum side force that the rotation system will generate when rotating the boom 3 The slip drive protects the boom when winching or while digging or setting screw anchors when a side load is generated When rotating digging or winching a hydraulic pilot signal is sent to release the mechanical parking brake During any of these operations a sequence valve l...

Страница 5: ...2022 VERSION 1 0 INTRODUCTION On units with a turret mounted worm gear winch there is a guard available to help keep the rope from getting hooked on the valve assembly on the rotation motor The kit to order is Z 1500 PAGE 5 OF 15 ...

Страница 6: ...es Locate a suitable anchor capable of holding 2500 lbs in an area with no overhead obstructions The area on each side of the anchor must be clear to be able to position the boom on both sides and apply side load Position and set up the truck near the anchor so the load line can be positioned to pull with the side pull attachment at 300 inches from the centerline of rotation except on the General ...

Страница 7: ...02 28 2022 VERSION 1 0 STEP 1 Set up With a General 95 position and set up the truck near the anchor so the load line can be positioned to pull with the side pull attachment at 329 inches from the centerline of rotation This should be fully retracted General 95 Test Set up PAGE 7 OF 15 ...

Страница 8: ...ydraulic manifold to 800 1 000 PSI This is accomplished by installing a hydraulic pressure gauge at the inlet of the derrick control valve Meter into rotation and monitor the hydraulic gauge pressure required for initial boom movement in each direction One counter balance valve adjusts clockwise rotation while the other adjusts counter clockwise Old Style Pre 1 1 2016 PAGE 8 OF 15 ...

Страница 9: ...om should be positioned so the anchor is perpendicular to the boom as shown in the diagram on page 5 When performing any of the following steps for all units except the General 95 the load line must be perpendicular to the boom at 300 inches from the centerline of rotation and approximately level The General 95 must be full retracted at 329 inches from the centerline of rotation New Style after 1 ...

Страница 10: ...pull sheave is attached to the second and the third is extended enough to prevent rope damage and allow the line to align with the side pull sheave On all units except the General 95 the second section is extended so that the line comes off 300 inches from the centerline of rotation The General 95 is fully retracted at 329 inches The side pull sheave is only used for testing Side pull is not permi...

Страница 11: ...ring the load cell operate winch up to achieve a minimum force of 2000 lb Do not pull more than 2500 lbs or damage to the rotation system may occur The brake should not slip during this test although load value may decrease as the synthetic rope elongates under load If the brake slips during this test repair as necessary Reinstall hydraulic line to brake after performing this test Do not exceed 2 ...

Страница 12: ... value or the quick reference section of the Maintenance manual One relief valve adjusts clockwise rotation while the other adjusts counterclockwise STEP 7 Slip Drive Adjustment Using the winch up function pull up slowly creating a side load on the boom The rotation should slip at the values stated in the maintenance manual do not exceed 2500 lbs Adjust the slip value up or down by adjusting the s...

Страница 13: ...Do not exceed 2 500 lbs of side load or damage may occur TECH TIP 11 RELEASED 02 28 2022 VERSION 1 0 Old Valve Pre 1 1 2016 New Valve After 1 1 2016 PAGE 13 OF 15 ...

Страница 14: ...TECH TIP 11 RELEASED 02 28 2022 VERSION 1 0 STEP 8 Return to service Remove all tools used load cell and side pull sheave from load line and operate to verify smooth operation PAGE 14 OF 15 ...

Страница 15: ...FOR FURTHER ASSISTANCE CONTACT THE TEREX UTILITIES TECHNICAL SUPPORT TEAM PHONE 1 844 TEREX4U 1 844 837 3948 EMAIL UTILITIES SERVICE TEREX COM ...

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