Mec 69RT Series Guide

Part # 96262
November 2022
Service & Parts Manual
XX69RT Series
This manual applies to machines ANSI A92.20-2020 and CSA B354.6-2019.
3369RT Serial Number Range 13300200 - Up
4069RT Serial Number Range 13800200 - Up
ART_4265

Page i XX69RT Series - Service & Parts Manual
November 2022
Revision History
Date Reason for Update
November 2022 New Release
1401 S. Madera Avenue, Kerman, CA 93630 USA
Toll Free: 1-877-632-5438
Phone: [phone]
Fax: [phone]
[email protected]
www.MECawp.com
MEC Aerial Work Platforms

Page ii XX69RT Series - Service & Parts Manual
November 2022
Table of Contents
Chapter 1 - Service � � � � � � � � � � � � � 1
Service Introduction. . . . . . . . . . . . . . . . . 1
Section 1 - MEC Operator Policy . . . . . . . . . . . . . 2
MEC Operator Policy � � � � � � � � � � � � � � � � � � � 2
Section 2 - Safety Symbols & General Safety Tips . . . . . . . . 3
Safety Symbols & General Safety Tips � � � � � � � � � � � � � � 3
Section 3 - Specications . . . . . . . . . . . . . . . 4
3369RT Specications� � � � � � � � � � � � � � � � � � � 4
4069RT Specications� � � � � � � � � � � � � � � � � � � 5
Section 4 - Torque Specications . . . . . . . . . . . . . 6
Bolt Torque Specication - American Standard � � � � � � � � � � � � 6
Bolt Torque Specication - Metric Standard � � � � � � � � � � � � � 7
Hydraulic Components Torque Table � � � � � � � � � � � � � � � 8
Section 5 - Troubleshooting . . . . . . . . . . . . . . 9
XX69RT Fault Codes � � � � � � � � � � � � � � � � � � � 9
Section 6 - Maintenance. . . . . . . . . . . . . . . . 11
Maintenance � � � � � � � � � � � � � � � � � � � � � 11
Pre-Delivery Preparation Report � � � � � � � � � � � � � � � � 12
Maintenance Inspection Report � � � � � � � � � � � � � � � � 13
Daily Checklist � � � � � � � � � � � � � � � � � � � � � 14
Quarterly Checklist � � � � � � � � � � � � � � � � � � � 18
Semi-annual Checklist� � � � � � � � � � � � � � � � � � � 24
Annual Checklist � � � � � � � � � � � � � � � � � � � � 25
Two Year Checklist � � � � � � � � � � � � � � � � � � � 30
Section 7 - Schematics . . . . . . . . . . . . . . . . 33
Drive Manifold, XX69RT � � � � � � � � � � � � � � � � � � 33
Function Manifold, XX69RT � � � � � � � � � � � � � � � � � 35
Electrical Schematic, XX69RT� � � � � � � � � � � � � � � � � 37
Hydraulic Schematic, XX69RT � � � � � � � � � � � � � � � � 38
Chapter 2 - Parts � � � � � � � � � � � � � � 40
Parts Introduction . . . . . . . . . . . . . . . . . 40
Section 8 - Chassis . . . . . . . . . . . . . . . . . 41
Steer Axle Assembly Installation � � � � � � � � � � � � � � � � 41
Steer Axle Assembly � � � � � � � � � � � � � � � � � � � 43
Rear Axle Assembly Installation � � � � � � � � � � � � � � � � 45
Left Rear Wheel Assembly � � � � � � � � � � � � � � � � � 47
Right Rear Wheel Assembly � � � � � � � � � � � � � � � � � 49
Rear Motor Assembly � � � � � � � � � � � � � � � � � � � 51

Page iii XX69RT Series - Service & Parts Manual
November 2022
Hydraulic Module Installation � � � � � � � � � � � � � � � � � 53
Hydraulic Module Door Installation � � � � � � � � � � � � � � � 55
Hydraulic Module Assembly � � � � � � � � � � � � � � � � � 57
Drive Manifold Assembly � � � � � � � � � � � � � � � � � � 59
Function Manifold Assembly, XX69RT� � � � � � � � � � � � � � � 61
Ground Control Box Assembly � � � � � � � � � � � � � � � � 63
Hydraulic Tank Assembly � � � � � � � � � � � � � � � � � � 65
Fuel Tank Assembly � � � � � � � � � � � � � � � � � � � 67
Engine Module Installation� � � � � � � � � � � � � � � � � � 69
Engine Module Door Installation � � � � � � � � � � � � � � � � 71
Engine Module Assembly � � � � � � � � � � � � � � � � � � 73
Radiator Shroud Assembly � � � � � � � � � � � � � � � � � 75
Diesel Cooling System Installation � � � � � � � � � � � � � � � 77
Diesel and Dual Fuel Cooling System Assembly � � � � � � � � � � � � 79
Diesel Intake System and Exhaust System � � � � � � � � � � � � � 81
Diesel Engine Assembly � � � � � � � � � � � � � � � � � � 83
Diesel Fuel System Assembly � � � � � � � � � � � � � � � � � 87
Dual Fuel Engine Assembly � � � � � � � � � � � � � � � � � 89
Dual Fuel LPG Tank � � � � � � � � � � � � � � � � � � � 91
Outriggers and Ladder Installation� � � � � � � � � � � � � � � � 93
Outrigger Assembly � � � � � � � � � � � � � � � � � � � 95
Chassis Accessory Installation � � � � � � � � � � � � � � � � 97
Electrical Accessory Assembly � � � � � � � � � � � � � � � � 99
Section 9 - Scissor . . . . . . . . . . . . . . . . . 101
Scissor Assembly, 3369RT � � � � � � � � � � � � � � � � 101
Scissor Assembly, 4069RT � � � � � � � � � � � � � � � � 105
Slider Assembly � � � � � � � � � � � � � � � � � � � 109
Hose Clamp Assembly � � � � � � � � � � � � � � � � � �111
Hose Clamp Assembly, 4069RT � � � � � � � � � � � � � � � �113
Hose Clamp Assembly 2 � � � � � � � � � � � � � � � � � �115
Section 10 - Platform . . . . . . . . . . . . . . . . 117
Main Platform Assembly � � � � � � � � � � � � � � � � � �117
Support Roller Assembly � � � � � � � � � � � � � � � � � �119
Side Roller Assembly � � � � � � � � � � � � � � � � � � 121
Platform Extension Assembly � � � � � � � � � � � � � � � � 123
Platform Locking Device Assembly � � � � � � � � � � � � � � 127
Roller Assembly � � � � � � � � � � � � � � � � � � � 129
Platform Control and Sheet Material Tray � � � � � � � � � � � � � 131
Platform Control Box Assembly � � � � � � � � � � � � � � � 133
Section 11 - Hydraulic System . . . . . . . . . . . . . . 135
Lower Lift Cylinder Assembly � � � � � � � � � � � � � � � � 135
Upper Lift Cylinder Assembly, 4069RT � � � � � � � � � � � � � 137
Left Oscillate Cylinder Assembly � � � � � � � � � � � � � � � 139
Right Oscillate Cylinder Assembly� � � � � � � � � � � � � � � 141
Steer Cylinder Assembly � � � � � � � � � � � � � � � � � 143
Outrigger Cylinder Assembly, SUN � � � � � � � � � � � � � � 145
Outrigger Cylinder Assembly, HydraForce� � � � � � � � � � � � � 147

Page iv XX69RT Series - Service & Parts Manual
November 2022
Function Manifold, XX69RT � � � � � � � � � � � � � � � � 149
Drive Manifold, XX69RT � � � � � � � � � � � � � � � � � 151
Hydraulic Hoses and Fittings-Drive � � � � � � � � � � � � � � 153
Hydraulic Hoses and Fittings-Function, 3369RT � � � � � � � � � � � 155
Hydraulic Hoses and Fittings-Function, 4069RT � � � � � � � � � � � 157
Hydraulic Hoses and Fittings-Outrigger � � � � � � � � � � � � � 159
Section 12 - Electrical Systems. . . . . . . . . . . . . . 161
Electrical Harness, 3369RT � � � � � � � � � � � � � � � � 161
Electrical Harness, 4069RT � � � � � � � � � � � � � � � � 165
Power to Platform � � � � � � � � � � � � � � � � � � � 169
Section 13 - Decals . . . . . . . . . . . . . . . . . 171
3369RT Decals � � � � � � � � � � � � � � � � � � � 171
4069RT Decals � � � � � � � � � � � � � � � � � � � 173

Page 1 XX69RT Series - Service & Parts Manual
November 2022
Service Introduction
This Service section is designed to provide you, the customer, with the instructions needed to
properly maintain the MEC self-propelled aerial work platform. When used in conjunction with the
illustrated Parts section in this manual and the Operator’s Manual (provided separately), this manual
will assist you in making necessary adjustments and repairs, and identifying and ordering the correct
replacement parts.
All parts represented here are manufactured and supplied in accordance with MEC quality
standards. We recommend that you use genuine MEC parts to ensure proper operation and reliable
performance.
To obtain maximum benets from your MEC Aerial Work Platforms, always follow the proper
operating and maintenance procedures. Only trained authorized personnel should be allowed to
operate or service this machine. Service personnel should read and study the Operator’s, and the
Service and Parts Manuals in order to gain a thorough understanding of the unit prior to making any
repairs.
Chapter 1 - Service

Page 2 XX69RT Series - Service & Parts Manual
November 2022
MEC Operator Policy
Note: The best method to protect yourself and others from injury or death is to use common sense.
If you are unsure of any operation, don’t start until you are satised that it is safe to proceed
and have discussed the situation with your supervisor.
Service personnel and machine operators must understand and comply with all warnings and
instructional decals on the body of the machine, at the ground controls, and platform control console.
MODIFICATIONS OF THIS MACHINE FROM THE ORIGINAL DESIGN AND
SPECIFICATIONS WITHOUT WRITTEN PERMISSION FROM MEC ARE
STRICTLY FORBIDDEN. A MODIFICATION MAY COMPROMISE THE
SAFETY OF THE MACHINE, SUBJECTING OPERATOR(S) TO SERIOUS
INJURY OR DEATH.
MEC’s policies and procedures demonstrate our commitment to quality and our relentless ongoing
e󰀨orts towards continuous improvement, due to which product specications are subject to change
without notice.
Any procedures not found within this manual must be evaluated by the individual to assure oneself
that they are “proper and safe.”
Your MEC Aerial Work Platform has been designed, built, and tested to provide many years of safe,
dependable service. Only trained, authorized personnel should be allowed to operate or service the
machine.
MEC, as manufacturer, has no direct control over machine application and operation. Proper safety
practices are the responsibility of the user and all operating personnel.
If there is a question on application and/or operation, contact MEC Aerial Work Platforms:
1401 S. Madera Avenue, Kerman, CA 93630 USA
Toll Free: 1-877-632-5438
Phone: [phone]
Fax: [phone]
[email protected]
www.MECawp.com
MEC Aerial Work Platforms
MEC Operator Policy
Section 1 - MEC Operator Policy

Page 3 XX69RT Series - Service & Parts Manual
November 2022
Safety Symbols & General Safety Tips
MEC manuals and decals use symbols, colors and signal words to help you recognize important
safety, operation and maintenance information.
RED and the word DANGER – Indicates an imminently hazardous
situation which, if not avoided, will result in death or serious injury.
ORANGE and the word WARNING – Indicates a potentially hazardous
situation which, if not avoided, could result in death or serious injury.
YELLOW with alert symbol and the word CAUTION – Indicates a
potentially hazardous situation which, if not avoided, may result in minor
or moderate injury.
YELLOW without alert symbol and the word CAUTION – Indicates a
potentially hazardous situation which, if not avoided, may result in
property damage.
GREEN and the word NOTICE – Indicates operation or maintenance
information.
Regular inspection and constant maintenance is the key to e󰀩cient economical operation of your
aerial work platform. It will help to assure that your equipment will perform satisfactorily with a
minimum of service and repair.
The actual operating environment of the machine governs the inspection schedule. Correct lubrication
is an essential part of the preventative maintenance to minimize wear on working parts and ensure
against premature failure. By maintaining correct lubrication, the possibility of mechanical failure and
resulting downtime is reduced to a minimum.
• Never leave hydraulic components or hoses open. They must be protected from contamination
(including rain) at all times.
• Never open a hydraulic system when there are contaminants in the air.
• Always clean the surrounding area before opening hydraulic systems.
• Use only recommended lubricants. Improper lubricants or incompatible lubricants may be as
harmful as no lubrication.
• Watch for makeshift “xes” which can jeopardize safety as well as lead to more costly repair.
Safety Symbols & General Safety Tips
Section 2 - Safety Symbols & General Safety Tips

Page 4 XX69RT Series - Service & Parts Manual
November 2022Section 3 - Specications
3369RT Specications
Height, Working Maximum 38 ft 10 in 12 m
Height, Platform Maximum 32 ft 10 in 10 m
Height, Stowed Maximum
Rails Up 8 ft 6 in 2.59 m
Height, Stowed Maximum
Rails Folded 5 ft 11 in 1.82 m
Width, Standard Tires 5 ft 9 in 1.76 m
Length, Platform Retracted
Models Without Outriggers 10 ft 6 in 3.19 m
Length, Platform Retracted
Models With Outriggers 12 ft 7 in 3.84 m
Length, Platform Extended
Models Without Outriggers 14 ft 9 in 4.51 m
Length, Platform Extended
Models With Outriggers 15 ft 9 in 4.81 m
Platform Dimensions
Platform Length × Width 9 ft 5 in × 4 ft 11 in 2.88 × 1.52 m
Platform Extension Length 4 ft 8 in 1.43 m
Maximum Load Capacity 1,000 lb 454 kg
Maximum Wind Speed 28 mph 12.5 m/s
Wheelbase 7 ft 6 in 2.29 m
Turning Radius (Outside) 15 ft 1 in 4.60 m
Turning Radius (Inside) 6 ft 11 in 2.11 m
Ground Clearance 9 1⁄2in 24 cm
Weight See Serial Label (Machine weights vary with option congurations)
Controls Proportional
AC Outlet In Platform Standard
Maximum Hydraulic Pressure (Functions) 3,500 psi 240 bar
Tire Size - Standard Tires 26 × 12-16.5
Airborne Noise Emissions <80 dB
Maximum sound level at normal operating workstations (A-weighted)
Gradeability 40%
Maximum Working Slope X-1.5°, Y-3°
Drive Speeds
Stowed, Maximum 3.2 mph 5.0 km/h
Platform Raised, Maximum 0.3 mph 0.45 km/h
Floor Loading Information
Tire Load, Maximum 4,254 lb 1,930 kg
Outrigger Load, Maximum 4,254 lb 1,930 kg
Tire Contact Pressure 137 psi 945.5 kPa
Outrigger Contact Pressure 87 psi 602 kPa
Occupied Floor Pressure 178 psf 8.5 kPa
Note:Floor loading information is approximate and does not incorporate di󰀨erent option
congurations. It should be used only with adequate safety factors.
3369RT Specications

Page 5 XX69RT Series - Service & Parts Manual
November 2022Section 3 - Specications
4069RT Specications
Height, Working Maximum 46 ft 4 in 14.3 m
Height, Platform Maximum 40 ft 4 in 12.3 m
Height, Stowed Maximum
Rails Up 8 ft 11 in 2.74 m
Height, Stowed Maximum
Rails Folded 6 ft 5 in 1.97 m
Width, Standard Tires 5 ft 9 in 1.76 m
Length, Platform Retracted
Models Without Outriggers 10 ft 6 in 3.19 m
Length, Platform Retracted
Models With Outriggers 12 ft 7 in 3.84 m
Length, Platform Extended
Models Without Outriggers 14 ft 9 in 4.51 m
Length, Platform Extended
Models With Outriggers 15 ft 9 in 4.81 m
Platform Dimensions
Platform Length × Width 9 ft 5 in × 4 ft 11 in 2.88 × 1.52 m
Platform Extension Length 4 ft 8 in 1.43 m
Maximum Load Capacity 800 lb 363 kg
Maximum Wind Speed 28 mph 12.5 m/s
Wheelbase 7 ft 6 in 2.29 m
Turning Radius (Outside) 15 ft 1 in 4.60 m
Turning Radius (Inside) 6 ft 11 in 2.11 m
Ground Clearance 9 1⁄2in 24 cm
Weight See Serial Label (Machine weights vary with option congurations)
Controls Proportional
AC Outlet In Platform Standard
Maximum Hydraulic Pressure (Functions) 3,500 psi 240 bar
Tire Size - Standard Tires 26 × 12-16.5
Airborne Noise Emissions <80 dB
Maximum sound level at normal operating workstations (A-weighted)
Gradeability 40%
Maximum Working Slope X-1.5°, Y-3°
Drive Speeds
Stowed, Maximum 3.2 mph 5.0 km/h
Platform Raised, Maximum 0.3 mph 0.45 km/h
Floor Loading Information
Tire Load, Maximum 4,872 lb 2,210 kg
Outrigger Load, Maximum 4,872 lb 2,210 kg
Tire Contact Pressure 154 psi 1,065 kPa
Outrigger Contact Pressure 98 psi 678 kPa
Occupied Floor Pressure 198 psf 9.5 kPa
Note:Floor loading information is approximate and does not incorporate di󰀨erent option
congurations. It should be used only with adequate safety factors.

Page 6 XX69RT Series - Service & Parts Manual
November 2022Section 4 - Torque Specications
Bolt Torque Specication - American Standard
Fasteners
Use the following values to apply torque unless a specic torque value is called out for the part being
used.
American Standard Cap Screws
SAE Grade 5 8
Cap Screw
Size (inches)
ART_5816A
ART_5816B
Torque Torque
Ft. Lbs Nm Ft. Lbs Nm
Min Max Min Max Min Max Min Max
1/4 - 20 6.25 7.25 8.5 10 8.25 9.5 11 13
1/4 - 28 8 9 11 12 10.5 12 14 16
5/16 - 18 14 15 19 20 18.5 20 25 27
5/16 - 24 17.5 19 12 26 23 25 31 34
3/8 - 16 26 28 35 38 35 37 47.5 50
3/8 - 24 31 34 42 46 41 45 55.5 61
7/16- 14 41 45 55.5 61 55 60 74.5 81
7/16 - 20 51 55 69 74.5 68 75 92 102
1/2 - 13 65 72 88 97.5 86 96 116 130
1/2 - 20 76 84 103 114 102 112 138 152
9/16 - 12 95 105 129 142 127 140 172 190
9/16 - 18 111 123 150 167 148 164 200 222
5/8 - 11 126 139 171 188 168 185 228 251
5/8 - 18 152 168 206 228 203 224 275 304
3/4 - 10 238 262 322 255 318 350 431 474
3/4 - 16 274 302 371 409 365 402 495 544
7/8 - 9 350 386 474 523 466 515 631 698
7/8 - 14 407 448 551 607 543 597 736 809
1- 8 537 592 728 802 716 790 970 1070
1 - 14 670 740 908 1003 894 987 1211 1137
Torque values apply to fasteners as received from the supplier, dry or when lubricated with
normal engine oil.
If special graphite grease, moly-disulphide grease, or other extreme pressure lubricants are
used, these torque values do not apply.
Bolt Torque Specication - American Standard

Page 7 XX69RT Series - Service & Parts Manual
November 2022Section 4 - Torque Specications
Bolt Torque Specication - Metric Standard
Fasteners
Use the following values to apply torque unless a specic torque value is called out for the part being
used
Metric Cap Screws
Metric Grade 8.8 10.9
Cap Screw Size
(Millimeters)
8.8
ART_5816C
10.9
ART_5816D
Torque Torque
Ft. Lbs Nm Ft. Lbs Nm
Min Max Min Max Min Max Min Max
M6 × 1.00 68811 911 12 15
M8 × 1.25 16 20 21.5 27 23 27 31 36.5
M10 × 1.50 29 35 39 47 42 52 57 70
M12 × 1.75 52 62 70 84 75 91 102 123
M14 × 2.00 85 103 115 139 120 146 163 198
M16 × 2.50 130 158 176 214 176 216 238 293
M18 × 2.50 172 210 233 284 240 294 325 398
M20 × 2.50 247 301 335 408 343 426 465 577
M22 × 2.50 332 404 450 547 472 576 639 780
M24 × 3.00 423 517 573 700 599 732 812 992
M27 × 3.00 637 779 863 1055 898 1098 1217 1488
M30 × 3.00 872 1066 1181 1444 1224 1496 1658 2027
Torque values apply to fasteners as received from the supplier, dry or when lubricated with
normal engine oil.
If special graphite grease, moly-disulphide grease, or other extreme pressure lubricants are
used, these torque values do not apply.

Page 8 XX69RT Series - Service & Parts Manual
November 2022Section 4 - Torque Specications
Hydraulic Components Torque Table
Note:Always lubricate threads with clean hydraulic uid prior to installation.
Use the following values to torque hydraulic components when a specic value is not available.
Always check for torque values in the following places before relying on the Hydraulic Components
Torque Table.
• Parts drawings and service instructions in this manual.
• Packaging and instruction sheets provided with new parts.
• Instruction manuals provided by the manufacturer of the component being serviced.
Type: SAE Port Series Cartridge Poppet Fittings Hoses
Ft. lbs Nm Ft. lbs Nm In. lbs Nm
#4 N/A N/A N/A N/A 135 - 145 15 - 16
#6 N/A N/A 10 - 20 14 - 27 215 - 245 24 - 28
#8 25 - 30 31 - 41 25 - 30 34 - 41 430 - 470 49 - 53
#10 35 - 40 47 - 54 35 - 40 47 - 54 680 - 750 77 - 85
#12 85 - 90 115 - 122 85 - 90 115 - 122 950 - 1050 107 - 119
#16 130 - 140 176 - 190 130 - 140 176 - 190 1300 - 1368 147 - 155

Page 9 XX69RT Series - Service & Parts Manual
November 2022Section 5 - Troubleshooting XX69RT Fault Codes
Fault
Code Display Description Solution
01 Internal ECU Fault Main ECU System Fault Replace ECU.
02 Platform ECU Fault ECU/Platform
Communication Fault
Check communications cable connections and
other wiring. If that does not resolve the problem, try
replacing the PCU or ECU.
08 Floating Coil Left Fault Left Floating Coil Fault Check the connections to the coil’s terminals and make sure they are tight. If so, check the coil itself to
see if it is open or shorted.
09 Floating Coil Right Fault Right Floating Coil Fault Check the connections to the coil’s terminals and make sure they are tight. If so, check the coil itself to
see if it is open or shorted.
14 Angle Sensor Fault Angle Sensor Fault Restart system, check the wiring, reset sensor,
replace sensor.
15 Pressure Sensor Fault Pressure Sensor Fault Restart system, check the wiring, reset sensor,
replace sensor.
20 Chassis Start Sw Fault Chassis Engine Start
Switch ON at power-up Self-Check fault, don’t touch other button at power-on.
21 Chassis Choke Sw
Fault Chassis Engine Choke Switch ON at power-up Self-Check fault, don’t touch other button at power-on.
22 Chassis Up Sw Fault Chassis Up Switch ON
at power-up Self-Check fault, don’t touch other button at power-on.
23 Chassis Lift Sw Fault Chassis Lift Enable
Switch ON at power-up Self-Check fault, don’t touch other button at power-on.
24 Chassis Down Sw Fault Chassis Down Switch
ON at power-up Self-Check fault, don’t touch other button at power-on.
25 Left Turn Switch Fault Platform Left Turn
Switch ON at power-up Self-Check fault, don’t touch other button at power-on.
26 Right Turn Switch Fault Platform Right Turn
Switch ON at power-up Self-Check fault, don’t touch other button at power-on.
27 Drive Enable Sw Flt Platform Drive Enable
Switch ON at power-up Self-Check fault, don’t touch other button at power-on.
28 O󰀨 Neutral Drive
Joystick Platform Joystick not in neutral ON at power-up Self-Check fault, don’t touch joystick or other button at power-on.
31 Platform Choke Sw
Fault Platform Engine Choke Switch ON at power-up Self-Check fault, don’t touch other button at power-on.
32 Platform Start Sw Fault Platform Start Switch
ON at power-up Self-Check fault, don’t touch other button at power-on.
33 Left Front Outrig Sw Flt Platform Left Front Outrigger Enable Switch
ON at power-up Self-Check fault, don’t touch other button at power-on.
34 Right Front Outrig Sw
Flt
Platform Right Front
Outrigger Enable Switch
ON at power-up Self-Check fault, don’t touch other button at power-on.
35 Left Rear Outrig Sw Flt Platform Left Rear Outrigger Enable Switch
ON at power-up Self-Check fault, don’t touch other button at power-on.
XX69RT Fault Codes

Page 10 XX69RT Series - Service & Parts Manual
November 2022Section 5 - Troubleshooting
Fault
Code Display Description Solution
36 Right Rear Outrig Sw
Flt
Platform Right Rear
Outrigger Enable Switch
ON at power-up Self-Check fault, don’t touch other button at power-on.
37 Auto Level Switch Fault Platform Outrigger Auto- Level Enable Switch ON
at power-up Self-Check fault, don’t touch other button at power-on.
43 Float Limit Switch Fault Float limit Switches are
both ON Check oat limit switches (work at the same time), Check wires.
49 Drive Coil 1 Fault Channel DRIVE 1 fails Check wiring, replace coil.
50 Drive Coil 2 Fault Channel DRIVE 2 fails Check wiring, replace coil.
51 Drive Coil 3 Fault Channel DRIVE 3 fails Check wiring, replace coil.
52 Func Prop Coil Fault Channel
PROPORTIONAL 1 fails Check wiring, replace coil.
54 Up Coil Fault Channel UP fails Check wiring, replace coil.
55 Down Coil Fault Channel DOWN fails Check wiring, replace coil.
56 Right Turn Coil Fault Channel Right Turn fails Check wiring, replace coil.
57 Left Turn Coil Fault Channel Left Turn fails Check wiring, replace coil.
58 Brake Coil Fault Channel Brake fails Check wiring, replace coil.
60 Forward 1 Coil Fault Channel FORWARD or
FLOAT fails Check wiring, replace coil.
61 Reverse 1 Coil Fault Channel REVERSE
fails Check wiring, replace coil.
66 Low Oil Pressure Oil Pressure Fault Check wiring, replace pressure sensor.
67 High Coolant
Temperature Water Temperature Fault Check wiring, replace temperature sensor.
68 Low ECU Voltage Low Battery Voltage Check wiring, check battery, replace battery.
69 Low Engine RPM Low RPM Fault Adjust the RPM between 1600 and 2600, manually.
70 High Engine RPM High RPM Fault Adjust the RPM between 1600 and 2600, manually.
81 Left Front Otrg Coil Flt Channel LEFT FRONT
OUTRIGGER fails Check wiring, replace coil.
82 Left Rear Otrg Coil Flt Channel LEFT REAR
OUTRIGGER fails Check wiring, replace coil.
83 Right Front Otrg Coil Flt Channel RIGHT FRONT
OUTRIGGER fails Check wiring, replace coil.
84 Right Rear Otrg Coil Flt Channel RIGHT REAR
OUTRIGGER fails Check wiring, replace coil.
85 Outrigger Ext Coil Flt Channel EXTEND
OUTRIGGER fails Check wiring, replace coil.
86 Outrigger Ret Coil Flt Channel RETRACT
OUTRIGGER fails Check wiring, replace coil.
95 Machine Type Fault Wrong Machine Type
Selected Set the machine model again.
98 Platform Overload Wrong Machine Type
Selected Remove the excess load immediately.
LL LL Tilt Machine Tilted Beyond
Safe Limits Fault
If the machine is tilted, nd a way to make it level. If
the machine is level, check the wiring to the tilt sensor
and then the sensor itself.

Page 11 XX69RT Series - Service & Parts Manual
November 2022Section 6 - Maintenance Maintenance
Observe and Obey:
• Only routine maintenance items specied in this manual shall be performed by the operator.
• Scheduled maintenance inspections shall be completed by qualied service technicians,
according to the manufacturer’s specications and the requirements specied in this manual.
Pre-Delivery Preparation Report
The Pre-Delivery Preparation Report contains checklists for each type of scheduled inspection.
Make copies of the Pre-Delivery Preparation Report to use for each inspection. Store completed
forms as required.
Maintenance Schedule
There is scheduled maintenance that must be performed according to a schedule: daily, quarterly,
semi-annually, annually, and two year. The Maintenance Inspection Report is divided between
quarterly and annual inspection.
Maintenance Inspection Report
The Maintenance Inspection Report contains checklists for each type of scheduled inspection.
Make copies of the Maintenance Inspection Report to use for each inspection. Maintain completed
forms for a minimum of 4 years or in compliance with your employer, jobsite and governmental
regulations and requirements.
Maintenance

Page 12 XX69RT Series - Service & Parts Manual
November 2022Section 6 - Maintenance Pre-Delivery Preparation Report
Fundamentals
It is the responsibility of the dealer to perform the Pre-Delivery Preparation.
The Pre-Delivery Preparation is performed prior to each delivery. The inspection is designed to
discover if anything is apparently wrong with a machine before it is put into service.
A damaged or modied machine must never be used. If damage or any variation from factory
delivered condition is discovered, the machine must be tagged and removed from service.
Repairs to the machine may only be made by a qualied service technician, according to the
manufacturer’s specications.
Scheduled maintenance inspections shall be performed by qualied service technicians, according to
the manufacturer’s specications and the requirements listed in this manual.
Instructions
The Pre-Delivery Preparation consists of completing the Pre-Operation Inspection, the Maintenance
items and the Function Tests.
Use this form to record the results. Place a check in the appropriate box after each part is completed.
If any inspection receives an N, remove the machine from service, repair and re-inspect it. After
repair, place a check in the R box.
Instructions
• Make copies of this report to use for each inspection.
• Select the appropriate checklist(s) for the type of inspection to be performed.
• Place a check in the appropriate box after each inspection procedure is completed.
• Use the step-by-step procedures in this section to learn how to perform these inspections.
• If any inspection receives an “N”, tag and remove the machine from service, repair and re-
inspect it. After repair, place a check in the “R” box.
Legend
Y = Yes, Completed
N = No, Unable To Complete
R = Repaired
Pre-Delivery Preparation Y N R
Pre-Operation Inspection completed
Maintenance items completed
Function tests completed

Page 13 XX69RT Series - Service & Parts Manual
November 2022Section 6 - Maintenance Maintenance Inspection Report
XX69RT & XX69ERT Series Scissor Lifts
Fleet Equipment Number Date
Inspector Name Inspector Co.
Model Number Address
Serial Number
Hour Meter Signature
Machine Owner & address
Maintain all service records in accordance with ANSI A92.24-2019
*If an inspection receives an “N”, remove from service. Once repaired, place an R in the box.
*Refer to the proper service manual for specic information, settings and torque specications.
Key Y = Yes, Acceptable N= No, Remove from Service R= Repaired 0= Not Applicable
QUARTERLY - Inspect only those marked “Q” ANNUAL - Inspect all items
Q/A Y/N/O R Q/A Y/N/O R
DECALS: WHEELS:
Legible - undamaged/readable Q Tire damage Q
Capacity decal correct for model Q Lug nuts (Wheel mounting) torqued correctly Q
RAILS: King Pins lubed (if equipped) A
Not damaged, all in place Q COMPONENT AREA:
All rail fasteners secure Q Hydraulic - no leaks, Clean oil, correct level Q
Entry gate/s secure, closes properly Q Hoses not damaged - Fittings tight Q
Manual box in good condition Q Valve manifold/s secure, no leaks Q
Operators Manual in manual box Q Power unit secure, no leaks (electric powered) Q
PLATFORM EXTENSION: (if equipped) Batteries properly lled and cables clean Q
Rolls in and out freely Q Emergency stop, cuts power/operation Q
Lock holds deck in place Q Replace Hydraulic return Filter A
Release pedal moves freely (lube) Q Clean or replace tank breather lter A
ELEVATING ASSEMBLY: OPERATIONAL INSPECTION:
Scissor Slide Blocks, lubed Q All functions, operate smooth and quiet Q
Maintenance Stand, good condition Q All functions, speeds correct Q
Beam structures: Straight, no cracks A Upper control box, operates correctly Q
Welds: secure, no cracks A Emergency Down, operates correctly Q
Retaining Rings or Pins A Height monitoring system operates correctly Q
Cylinder Pins, secure A Pothole switch test (2659ERT & 3259ERT only) Q
ELECTRICAL: Main Pressure relief set correctly A
GFCI operates correctly Q Steering pressure relief, set correctly A
Wire harnesses good condition, secure A Lift pressure relief, set correctly A
Comm cable no damage, secure A ENGINE (if equipped):
BASE: Engine serviced per recommendations’ Q
Fasteners tight Q Oil and Coolant Levels correct Q
Cover panels secure Q Fuel lines secure, no leaks Q
Welds A All shields, guards in place, secure Q
Drive Motors secure, no leaks A Mounting secure Q

Page 14 XX69RT Series - Service & Parts Manual
November 2022Section 6 - Maintenance Daily Checklist
The following maintenance should be done every day or 8 hours of operation.
A-1 Inspect the Manuals and Decals
Maintaining the operator’s manual in good condition is essential to safe machine operation. Manuals
are included with each machine and should be stored in the container provided in the platform. An
illegible or missing manual will not provide the safety and operational information necessary for a safe
operating condition.
In addition, maintaining all of the safety and instructional decals in good condition is mandatory
for safe machine operation. Decals alert operators and personnel to the many possible hazards
associated with using this machine. They also provide users with operation and maintenance
information. An illegible decal will fail to alert personnel of a procedure or hazard and could result in
unsafe operating conditions.
1. Check to make sure that the operator’s manual is present and complete in the storage container
on the platform.
2. Examine the pages of manual to be sure that they are legible and in good condition.
• Result: The operator’s manual is appropriate for the machine and the manual are legible and
in good condition.
• Result: The operator’s manual is not appropriate for the machine or the manual is not in
good condition or is illegible. Remove the machine from service until the manual is replaced.
3. Open the operator’s manual to the decals inspection section. Carefully and thoroughly inspect all
decals on the machine for legibility and damage.
• Result: The machine is equipped with all required decals, and all decals are legible and in
good condition.
• Result: The machine is not equipped with all required decals, or one or more decals are
illegible or in poor condition. Remove the machine from service until the decals are replaced.
4. Always return the manual to the storage container after use.
A-2 Perform Pre-Operation Inspection
Completing a Pre-Operation Inspection is essential to safe machine operation. The Pre-Operation
Inspection is a visual inspection performed by the operator prior to each work shift. The inspection
is designed to discover if anything is apparently wrong with a machine before the operator performs
the function tests. The Pre-Operation Inspection also serves to determine if routine maintenance
procedures are required.
Complete information to perform this procedure is available in the appropriate operator’s manual.
Refer to the Operator’s Manual on your machine.
A-3 Check the Battery
• New parts will be required to perform this procedure.
Proper battery condition is essential to good machine performance and operational safety. Improper
uid levels or damaged cables and connections can result in component damage and hazardous
conditions.

Page 15 XX69RT Series - Service & Parts Manual
November 2022Section 6 - Maintenance
Electrocution hazard. Contact with hot or live circuits may result in death
or serious injury. Remove all rings, watches and other jewelry.
Bodily injury hazard. Battery contain acid. Avoid spilling or contacting
battery acid. Neutralize battery acid spills with baking soda and water.
1. Put on protective clothing and eye wear.
2. Be sure that the battery cable connections are tight and free of corrosion.
3. Be sure that the battery hold-down bars are secure.
4. Remove the battery vent caps.
5. Check the battery acid level. If needed, replenish with distilled water to the bottom of the battery
ll tube. Do not overll.
6. Install the vent caps.
A-4 Test the Oscillate System
The oscillate system is designed so that all four tires maintain rm contact with the ground on unlevel
terrain, improving traction and machine stability.
Proper axle oscillation is essential to safe machine operation. If the axle oscillation system is not
operating correctly, the stability of the machine is compromised and it may tip over.
Test The Oscillate System (Stowed Position)
1. Drive the left steer tire up onto a 4 in (10 cm) high ramp.
• Result: All four tires should maintain rm contact with the ground.
2. Drive the right steer tire up onto a 4 in (10 cm) high ramp.
• Result: All four tires should maintain rm contact with the ground.
Note:Verify that there are no fault codes shown on ground control display.
Test The Oscillate System (Elevated Position)
1. Press the lift function select button. Raise the platform approximately 8 ft (2.4 m) from the
ground.
2. Drive the left steer tire into a 4 in (10 cm) deep hole.
• Result: All four tires should maintain rm contact with the ground.
3. Drive the right steer tire into a 4 in (10 cm) deep hole.
• Result: All four tires should maintain rm contact with the ground.
Note:Verify that there are no fault codes shown on ground control display.
A-5 Check the Engine Oil Level
• Tools will be required to perform this procedure.
Maintaining the proper engine oil level is essential to good engine performance and service life.
Operating the machine with an improper oil level can damage engine components.