Terex C5000 Series Manuale utente
TEREX UTILITIES TECHNICAL SUPPORT TEAM
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
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 identied 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 qualied 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 15
TECH TIP 11 | RELEASED 02.28.2022 | VERSION 1.0
TECH TIP 11 | RELEASED 02.28.2022 | VERSION 1.0
©TEREX UTILITIES. ALL RIGHTS RESERVED
PAGE 3 OF 15
CONTENTS
TECH TIP#11
TOC
4| Introduction
6| Bring the unit up to operating temperature.
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
TECH TIP 11 | RELEASED 02.28.2022 | VERSION 1.0
INTRODUCTION
The planetary slip drive rotation utilizes both a mechanical parking brake and a hydraulic valve
braking system.
There are three parts to the rotation system on a Digger Derrick to protect the unit from structural
overload of the boom or rotation system.
1. The parking brake is used to lock the boom in position when the rotation system is not being used
such as road travel. The mechanical brake, located on top of the planetary gearbox, is either full
on or full off. There is typically no lubricant in this mechanical parking brake.
2. 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 located in the rotation slip drive hydraulic
manifold performs the braking. If a side load exceeds the sequence valve setting, the slip drive will
slip by back-driving through one of the two sequence valves. The Old-Style valve was used up until
1/1/2016. Anything after that date will have the New Style valve as shown below.
New Style Old Style
Planetary Slip Drive Test & Adjustment
PAGE 4 OF 15
TECH TIP 11 | RELEASED 02.28.2022 | 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
The anchor must be capable of holding up to 2,500 lbs. of force
TECH TIP 11 | RELEASED 02.28.2022 | VERSION 1.0
STEP 1: Set-up
Bring the unit up to operating temperature. Operate the rotation for several revolutions in each
direction to prime the hydraulic lines. 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 95.
Test Set-up - All units except General 95
PAGE 6 OF 15
The anchor must be capable of holding up to 2,500 lbs. of force
TECH TIP 11 | RELEASED 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
TECH TIP 11 | RELEASED 02.28.2022 | VERSION 1.0
STEP 2: Setting the Minimum Rotation Pressure
Set the counter-balance valves, C1 and C2 or CB1 and CB2 located in the rotation slip drive
hydraulic 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
TECH TIP 11 | RELEASED 02.28.2022 | VERSION 1.0
STEP 3: Boom Position
With the truck in the working position, rotate the boom off the back or side placing the sheave
head approximately four to six feet off the ground. The boom 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 1/1/2016
PAGE 9 OF 15
TECH TIP 11 | RELEASED 02.28.2022 | VERSION 1.0
STEP 4: Connecting the Load Line to the Anchor
Attach a load cell between the load line and the xed anchor using a side pull sheave. Do not try to
side pull without this adapter or load line will be damaged.
The side 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 permitted
during operation, only for testing purposes.
PAGE 10 OF 15
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