Gomaco GT-3600 Owner's manual

The Worldwide Leader in Concrete Paving Technology
GT-3600
Trimmer/Paver
Owner/Operator's
Manual
GOCRB software

GT-3600
Trimmer/Paver
Owner/Operator
Manual
MACHINE SERIAL NUMBER:__________________________
ENGINE SERIAL NUMBER:___________________________
GOMACO Corporation
HIGHWAYS 59 & 175
Ida Grove, Iowa 51445
Telephone: [phone]
Fax # [phone]
Form No. H-36G+1216
Version 0921
Printed in USA
Copyright 2021 GOMACO

Letter to Customer
1-2
To the Customer
Your new GOMACO GT-3600 was carefully designed and manufactured to give years of dependable
service. To keep it running e󰀩ciently, read the instructions in this manual thoroughly. It contains detailed
descriptions and instructions for the e󰀩cient operation and maintenance of your GT-3600. Each section
is clearly identied so you can easily nd the information that you need. Read the Table of Contents to
learn where each section is located. All instructions are recommended procedures only.
Throughout this manual you will come across “Caution”, “Warning” or “Danger” statements which will
be carried out in bold type and preceded by one of the following symbols. Be certain to carefully read
the message that follows to avoid the possibility of personal injury or machine damage.
A “Danger” statement is of utmost importance and signals
severe injury or high probability of death to the user if proper
precautions are not taken.
A “Warning” statement is customarily used to indicate a
potential hazard which could result in serious personal injury.
A “Caution” statement usually indicates a hazard that could
result in minor injury, or damage to equipment.
You will also come across “Notice” statements which will be carried out in bold type. A “Notice”
statement usually indicates a precaution or procedure to take to prevent personal injury, property
damage or an unsatisfactory nished product.
GOMACO cannot anticipate every possible circumstance that might involve a potential hazard. The
warnings in this publication and on the machine are therefore not all inclusive. If a tool, procedure,
work method or operating technique not specically recommended by GOMACO is used, you must
be certain that it is safe for yourself and others. You should be certain that the machine will not be
damaged or made unsafe by negligent operation, or by improper maintenance or repair procedures.
Right hand and left hand sides are determined by facing the direction the GT-3600 will travel during
paving operations. The two track end of the GT-3600 is referred to as the “front” and single track end is
referred to as the “rear”.
There are a variety of special applications which the GT-3600 may be used on. This manual covers
the use of the GT-3600 for standard low proles, and side-mounted barrier. For special applications,
consult your nearest GOMACO Distributor.
Record your GT-3600 serial numbers in the appropriate spaces provided on the title page. Your
GOMACO dealer needs this information to give you prompt, e󰀩cient service when you order parts.
It pays to rely on an authorized GOMACO Distributor for your service needs. For the location of the
Distributor nearest you, contact GOMACO.
Note: It is GOMACO’s policy to constantly strive to improve GOMACO products. The information,
specications, and illustrations in this publication are based on the information in e󰀨ect at the time
of approval for printing and publishing. GOMACO therefore reserves the right to make changes in
design and improvements whenever it is believed the e󰀩ciency of the machine will be improved
without incurring any obligation to incorporate such improvements in any machine which has been
shipped or is in service. It is recommended that users contact an authorized GOMACO Distributor
for latest revisions.
CAUTION!
! !
! !
DANGER!
WARNING!
! !

GT-3600 G+
1-3
Table of Contents
CHAPTER I ............................................................................................................................................................1-1
To the Customer ......................................................................................................................................1-2
Table of Contents ....................................................................................................................................1-3
Safety Section..........................................................................................................................................1-8
Safety Decal Locations .........................................................................................................................1-12
Safety Decal Descriptions ....................................................................................................................1-23
Manual Revisions ..................................................................................................................................1-27
Chapter II Controls and Gauges..........................................................................................................................2-1
Content of Chapter ..................................................................................................................................2-1
Control Console Cover ...........................................................................................................................2-1
Hydraulic Controls and Gauges.............................................................................................................2-1
Electrical Controls...................................................................................................................................2-4
Remote Control Options ...............................................................................................................2-5
Engine Controls and Gauges .......................................................................................................2-6
Master Disconnect Switch .......................................................................................................... 2-11
Electrical Control Panel .............................................................................................................. 2-11
Switch Panel............................................................................................................................... 2-11
G+ Control Panel ...................................................................................................................................2-14
G+ Display..............................................................................................................................................2-18
G+ Display Faceplate switches and buttons ..............................................................................2-18
Main Menu..................................................................................................................................2-18
Run Menu ..................................................................................................................................2-18
Radius Control............................................................................................................................2-22
Slope Compensation/Transition..................................................................................................2-26
Test menu ...................................................................................................................................2-28
Setup menu ................................................................................................................................2-34
Active faults ................................................................................................................................2-46
Screen setup ..............................................................................................................................2-47
About display ..............................................................................................................................2-48
Help display ................................................................................................................................2-48
Moving the Machine ..............................................................................................................................2-48
Stopping the Engine ...................................................................................................................2-50
Chapter III Standard Setup ..................................................................................................................................3-1
Content of Chapter ..................................................................................................................................3-1
Curb and Gutter Form Preparation ........................................................................................................3-1
Stainless Trowel Adjustment.........................................................................................................3-1
Vibrator installation (curb and gutter) ...........................................................................................3-2
Driveway Cutter Installation..........................................................................................................3-3
Scab-On Sideplate Preparation....................................................................................................3-4
Manual Sideplate Adjustments ....................................................................................................3-5
Hydraulic Sideplate Adjustments ..................................................................................................3-5
Sidewalk Form Preparation ....................................................................................................................3-7
Changing Sectional Form Widths .................................................................................................3-7
Stainless Trowel Adjustment.........................................................................................................3-7
Blockout Installation .....................................................................................................................3-8
Vibrator Installation ......................................................................................................................3-9
Installing Depth Extensions .........................................................................................................3-9
Positioning and Mounting the Trimmerhead ......................................................................................3-10
Installation of Trimmer Lift Assembly ..........................................................................................3-10
Positioning and Mounting the Trimmerhead ...............................................................................3-10
Changing Trimmerhead Width....................................................................................................3-12
Reversing the trimmer discharge direction ................................................................................3-14

GT-3600 G+
1-4
Positioning the Legs .............................................................................................................................3-15
Vertical Positioning .....................................................................................................................3-15
Lateral Positioning .....................................................................................................................3-16
Preparing and Mounting the Conveyor ...............................................................................................3-18
Mounting the Slipform Mold .................................................................................................................3-21
Hydraulic Connections................................................................................................................3-22
Mounting the Sensors (Standard)........................................................................................................3-24
Sensor Installation ......................................................................................................................3-26
Controller Setup ....................................................................................................................................3-29
Left side grade control; Right side slope control.........................................................................3-29
Machine Setup #2.......................................................................................................................3-29
Machine Setup #3.......................................................................................................................3-30
Sensor Setup..............................................................................................................................3-30
3D control ...................................................................................................................................3-31
Steer and Elevation Thresholds .................................................................................................3-31
Mounting Sensors (Scab-On) ...............................................................................................................3-32
Mounting the Sensors (Lock-To-Grade) .............................................................................................3-33
Preliminary Adjustments ......................................................................................................................3-34
Trimmer and Mold Alignment to Machine Frame........................................................................3-34
Machine Frame Alignment to Guideline......................................................................................3-35
24 Inch (610 mm) Radius Setup with 12 Inch (300 mm) Grade and Steering O󰀨set .................3-40
Final Adjustments..................................................................................................................................3-46
Pouring Operations ...............................................................................................................................3-48
Radius control.............................................................................................................................3-52
3.14.2 — Continuing the Pour ....................................................................................................3-54
Concrete Problems.....................................................................................................................3-55
Working around obstacles in the guideline.................................................................................3-57
Cleaning Operations...................................................................................................................3-58
Center Mount Form Installation ...........................................................................................................3-60
Center Mount Assembly up to 8 feet (2.44 meter)......................................................................3-61
Field Installation of auxiliary vibrator and auger control valves ..................................................3-65
Center Mount Assembly up to 10 feet (3.05 meters) ..................................................................3-65
Mounting the Sensors.................................................................................................................3-74
Daily Operation Check List...................................................................................................................3-76
Chapter IV Side Mounted Barrier Setup .............................................................................................................4-1
Content of Chapter ..................................................................................................................................4-1
Form Preparation.....................................................................................................................................4-1
Sideplate Adjustment....................................................................................................................4-1
Adjusting Top Plate.......................................................................................................................4-2
Stainless Trowel Adjustment.........................................................................................................4-2
Vibrator Installation.......................................................................................................................4-3
Positioning the Legs ...............................................................................................................................4-5
Vertical Positioning ......................................................................................................................4-5
Lateral Positioning .......................................................................................................................4-5
Mounting the Slipform Mold ...................................................................................................................4-6
Remove the trimmerhead and trimmer lift assemblies ................................................................4-6
Installing the Form Mounts ...........................................................................................................4-8
Mounting the Form .....................................................................................................................4-10
Preparing and Mounting the Conveyor ...............................................................................................4-11
Mounting the Sensors...........................................................................................................................4-12
Center Mount Stringline..............................................................................................................4-12
Left Stringline..............................................................................................................................4-13
Controller Setup ....................................................................................................................................4-15
Left side grade control; Right side slope control.........................................................................4-15
Machine Setup............................................................................................................................4-15

GT-3600 G+
1-5
Sensor Setup..............................................................................................................................4-15
3D control ...................................................................................................................................4-16
Steer and Elevation Thresholds .................................................................................................4-17
Preliminary Adjustments ......................................................................................................................4-18
Mold Alignment to Machine Frame .............................................................................................4-18
Sensor Adjustments....................................................................................................................4-19
Parallel Measurements and Adjustment .....................................................................................4-20
Final Adjustments..................................................................................................................................4-22
Pouring Operations ...............................................................................................................................4-25
Starting Pour From Header ........................................................................................................4-25
Continuing the Pour from an Existing Wall .................................................................................4-26
Continuing the Pour....................................................................................................................4-28
Concrete Problems.....................................................................................................................4-28
Applying a nal nish..................................................................................................................4-31
Expansion Joints ........................................................................................................................4-31
Curing the product ......................................................................................................................4-31
Ending the pour ..........................................................................................................................4-32
Cleaning Operations...................................................................................................................4-32
Chapter V Maintenance........................................................................................................................................5-1
Lubrication and Maintenance Service Interval Chart........................................................................................5-1
Content of Chapter ..................................................................................................................................5-3
Fuels .........................................................................................................................................................5-3
Lubricants ................................................................................................................................................5-3
Engine Lubrication Oil ..................................................................................................................5-3
Hydraulic Oil .................................................................................................................................5-3
Gear Case Oils .............................................................................................................................5-3
Grease..........................................................................................................................................5-3
Ten hour or daily service ........................................................................................................................5-4
Check E-Stop operations..............................................................................................................5-4
Check backup alarm operation.....................................................................................................5-4
Grease steering cylinder pins (option)..........................................................................................5-4
Check engine oil level...................................................................................................................5-4
Check engine coolant level...........................................................................................................5-5
Clean engine compartment ..........................................................................................................5-5
Check hydraulic uid level ............................................................................................................5-5
Fill fuel tank ..................................................................................................................................5-6
Fill DEF tank (Tier IV Engine) .......................................................................................................5-6
Draining DEF for long term storage (Tier IV Engine)....................................................................5-7
Check the air lter restriction indicator .........................................................................................5-7
Clean power washer water inlet screen........................................................................................5-7
Draining the water reservoir .........................................................................................................5-7
Drain and protect power washer in freezing conditions................................................................5-8
Check power washer gearcase oil level .......................................................................................5-8
Torque bolts on frame attachments ..............................................................................................5-8
Fifty hour or weekly service ...................................................................................................................5-8
Drain water from fuel lters...........................................................................................................5-8
Grease trimmer idler shaft bearing ...............................................................................................5-9
Grease conveyor bearings ...........................................................................................................5-9
Grease screw conveyor bearing...................................................................................................5-9
Inspect piston leg wear pads ......................................................................................................5-10
Check track drive gearbox oil level.............................................................................................5-10
Torque track sprocket stud bolts................................................................................................. 5-11
Check pump drive gearbox oil level............................................................................................ 5-11
Check battery electrolyte level.................................................................................................... 5-11
Check alternator and fan belts .............................................................................................................5-12

GT-3600 G+
1-6
Check conveyor belt tension and alignment...............................................................................5-12
Check wear on conveyor belt wipers..........................................................................................5-13
Check trimmer teeth cutting depth..............................................................................................5-13
Trimmerhead teeth replacement.................................................................................................5-15
Grease slew drives .....................................................................................................................5-15
250 hour or monthly service ................................................................................................................5-16
Lubricate leg inner guide tubes ..................................................................................................5-16
Grease the lower leg bearings (piston leg).................................................................................5-16
Check leg wear pads for correct adjustment ..............................................................................5-17
Dry lubricate trimmer lift guide tubes ..........................................................................................5-17
Grease track yoke pivot pin ........................................................................................................5-17
Grease swinging leg pivot pins...................................................................................................5-17
Grease slew drive bearings ........................................................................................................5-18
600 Hour or Annual Service..................................................................................................................5-18
Replace hydraulic oil lter...........................................................................................................5-18
Replace high pressure lift lter ...................................................................................................5-19
Replace the trimmer charge lter ...............................................................................................5-19
Clean sump lters.......................................................................................................................5-19
Hydraulic oil replacement ...........................................................................................................5-20
Lubricate the upper guide tubes .................................................................................................5-20
Change oil in torque hub gearbox ..............................................................................................5-20
Change oil in pump drive gearbox..............................................................................................5-21
Inspect cast auger sections for replacement ..............................................................................5-21
Inspect condition of hydraulic and electrical components ..........................................................5-21
Inspect wear pads ......................................................................................................................5-21
Service the air cleaner ..........................................................................................................................5-23
Service the battery ................................................................................................................................5-23
Alternator and starter service ..............................................................................................................5-24
Adjusting Servo Valves.........................................................................................................................5-25
Adjusting Pressures..............................................................................................................................5-25
Pump locations ...........................................................................................................................5-25
Center trimmer pump electric displacement control (EDC) neutral point ...................................5-25
Adjust EDC valves......................................................................................................................5-26
Check Trimmer Pump High Pressure Reliefs .............................................................................5-26
Check and Adjust Trimmer Charge Pressure Relief ...................................................................5-27
Conveyor Pressure.....................................................................................................................5-27
Tractive Pressure........................................................................................................................5-28
Vibrator Pressure........................................................................................................................5-29
Lift Pressure ...............................................................................................................................5-30
Calibrating the Control Dial Thresholds..............................................................................................5-30
Calibrating the Elevation Thresholds ..................................................................................................5-34
Calibrating All Jog Current...................................................................................................................5-35
Rotating the steering slew drive gears ...............................................................................................5-35
Calibrating the Steering Systems ........................................................................................................5-36
Steering Threshold Setting .........................................................................................................5-36
Left, Center, Right Limit Adjustment ...........................................................................................5-36
Calibrating the Slope Sensor ...............................................................................................................5-38
Replacing a Steer Rotational Sensor...................................................................................................5-39
Distance Calibration..............................................................................................................................5-40
Eaton Valve Airbleed and Training procedure ....................................................................................5-41
Chapter VI Diagnostics .......................................................................................................................................6-1
Content of Chapter ..................................................................................................................................6-1
Engine Diagnostics .................................................................................................................................6-1
Power Distribution Electrical Kohler T4 Drawing.................................................................................6-3
Power Distribution Electrical CAT T4 Drawing .....................................................................................6-4

GT-3600 G+
1-7
Power Distribution Diagnostics .............................................................................................................6-5
CAN Electrical Drawing.........................................................................................................................6-11
CAN Electrical Drawing.........................................................................................................................6-12
CAN Electrical Diagnostics ..................................................................................................................6-13
Machine CAN .............................................................................................................................6-13
Active Faults ...............................................................................................................................6-13
Accessory CAN ..........................................................................................................................6-20
Emergency Stop Electrical Drawing ....................................................................................................6-26
Emergency Stop Electrical Diagnostics..............................................................................................6-27
Lift and Steer Hydraulic Drawing (Servo)............................................................................................6-31
Lift and Steer Hydraulic Drawing (CAN)..............................................................................................6-32
Lift and Steer Hydraulic Diagnostics...................................................................................................6-33
Elevation and Slope Electrical Drawing (Servo Valves).....................................................................6-39
Elevation and Slope Electrical Drawing (CAN Valves) ......................................................................6-40
Elevation and Slope Electrical Diagnostics ........................................................................................6-41
Elevation or Dual Elevation Operation........................................................................................6-41
Slope Operation..........................................................................................................................6-43
Fault History Displays.................................................................................................................6-45
Steer Electrical Drawing .......................................................................................................................6-56
Steering Electrical Diagnostics............................................................................................................6-57
Automatic steer operation...........................................................................................................6-57
Manual steer operation...............................................................................................................6-60
Fault History Displays.................................................................................................................6-62
Track Hydraulic Drawing.......................................................................................................................6-75
Track Hydraulic Drawing (Eaton) .........................................................................................................6-76
Track Hydraulic Diagnostics ................................................................................................................6-77
High/Low Travel Speed ..............................................................................................................6-77
Track Brake ................................................................................................................................6-78
Track Electrical Drawing .......................................................................................................................6-84
Travel Electrical Diagnostics................................................................................................................6-85
Hydraulic Reservoir Drawing ...............................................................................................................6-93
Hydraulic Reservoir System Diagnostics ...........................................................................................6-94
Conveyor Hydraulic Drawing ...............................................................................................................6-97
Conveyor Hydraulic Diagnostics .........................................................................................................6-98
Conveyor Electrical Drawing..............................................................................................................6-102
Conveyor Electrical Diagnostic..........................................................................................................6-103
Trimmer Hydraulic Drawing................................................................................................................6-109
Trimmer Hydraulic Diagnostics..........................................................................................................6-110
Trimmer Electrical Drawing ................................................................................................................6-115
Trimmer Electrical Diagnostic ............................................................................................................6-116
Vibrator Hydraulic Diagnostics ..........................................................................................................6-121
Vibrator Electrical Drawing.................................................................................................................6-123
Vibrator Electrical Diagnostic ............................................................................................................6-124
Lift Hydraulic System Schematic.......................................................................................................6-127
Auxiliary Hydraulic Drawing...............................................................................................................6-128
Auxiliary Hydraulic Diagnostic...........................................................................................................6-129
Hold Down and Hold Over Systems .........................................................................................6-129
Auxiliary Electrical Drawing ..............................................................................................................6-134
Auxiliary Electrical Diagnostics .........................................................................................................6-135
CAT 3.4L Tier IV Electrical Drawing ...................................................................................................6-137
John Deere 4045 Tier III Electrical Drawing ......................................................................................6-138
Kohler Tier IV Electrical Drawing .......................................................................................................6-139
Engine Electrical Circuits ...................................................................................................................6-141
Power View CAN Communication ............................................................................................6-141
Torque Values .................................................................................................................................................... TV-1

Safety Section
1-8
Safety Section
The safety section lists basic safety precautions. In addition, this section identies the text and locations of
warning labels used on the machine.
Read and understand the basic precautions listed in the safety section before operating or performing lubrication,
maintenance and repair on this equipment.
695-55M28
General safety statements
1. The machine should only be operated by responsible persons who have thoroughly read the operators manual
and have been properly instructed to do so. Do not allow unnecessary persons on the machine.
2. Be certain all shields and guards are kept in place.
3. Be certain that the trimmerhead or auger is free of debris before engaging the control valve.
4. Keep hands, feet and clothing free of moving parts. Do not wear loose tting clothing or jewelry that can catch
on controls or other parts of the machine.
5. Use steps and hand rail to mount and dismount from the machine.
6. Be certain that the engine is shut o󰀨 before performing service or maintenance on the machine.
7. When traveling the machine on transport ramps or steep slopes, adjust the hi/low travel speed control to “low”
speed.
8. Stop the trimmer wheel or auger rotation and shut the engine o󰀨 before removing debris.
9. Be certain that all hydraulic control valves and electrical controls are in the “o󰀨” position before starting the
engine.
10. Wear a hard hat, protective glasses and other protective equipment as required by job conditions.
11. Report all needed repairs.
Warning signs and decals
There are several specic safety signs or decals on your machine. Please take the time to familiarize yourself
with the safety signs.
Make sure that you can read all safety signs. Clean or replace these if you cannot read the words or see the
pictures. When cleaning the labels use a cloth, water and soap. Do not use solvents, gasoline, etc., to clean
safety signs. The use of solvents, gasoline, etc., could loosen the sign’s adhesive and cause the sign to fall o󰀨.
You must replace a label if it is damaged, missing or cannot be read. If a label is on a part that is replaced, make
sure a new label is installed on the replaced part. Contact your GOMACO dealer for new labels.