Mec SE Series Guide

Part # 94124
March 2020
1930SE Serial Number Range 16400000 - Up
2632SE Serial Number Range 16500000 - Up
3346SE Serial Number Range 16600000 - Up
4046SE Serial Number Range 16700000 - Up
4555SE Serial Number Range 16800001 - Up
Service & Parts Manual
SE Series
1930SE
2632SE
3346SE
4046SE
4555SE
ART_4908

Page i SE Series - Service & Parts Manual
March 2020
Revision History
Date Reason for Update
March 2017 New Release
July 2019 4555 Serial Break Additions
November 2019
Added Hindley Platform Controls
Added 4555SE Lower & Upper Lift Cylinder Serial Breaks to 4046SE/4555SE Scissor
Assembly
Updated Fault Code chart
February 2020 Updated all Platform Extension Assembly
March 2020 Updated Lower Lift Cylinder Assembly
1401 S. Madera Avenue, Kerman, CA93630 USA
Toll Free: 1 - 877 - 632 - 5438
Phone: 1 - 559 - 842 - 1500
Fax: 1 - 559 - 842 - 1520
[email protected]
www.MECawp.com
MEC Aerial Work Platforms

Page ii SE Series - Service & Parts Manual
March 2020
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 - Specifications . . . . . . . . . . . . . . 4
Specifications - 1930SE, 2632SE, 3346SE . . . . . . . . . . . . . 4
Specifications - 4046SE, 4555SE . . . . . . . . . . . . . . . . 5
Section 4 - Torque Specifications . . . . . . . . . . . . 6
Bolt Torque Specification - American Standard . . . . . . . . . . . . 6
Bolt Torque Specification - Metric Standard . . . . . . . . . . . . . 7
Hydraulic Components Torque Table . . . . . . . . . . . . . . . 8
Section 5 - Maintenance Locks . . . . . . . . . . . . . 9
Maintenance Locks - 1930SE, 2632SE, 3346SE . . . . . . . . . . . . 9
Maintenance Locks - 4046SE, 4555SE . . . . . . . . . . . . . . 10
Section 6 - Hydraulic System, Electrical System And Total System . . . 12
Hydraulic System, Electrical System And Total System . . . . . . . . . . 12
Section 7 - Primary Machine Components . . . . . . . . . . 13
Primary Machine Components . . . . . . . . . . . . . . . . 13
Section 8 - Emergency Systems And Procedures . . . . . . . . 14
Emergency Systems And Procedures. . . . . . . . . . . . . . . 14
Section 9 - Transport And Lifting Instructions . . . . . . . . . 15
Free-Wheel Configuration For Winching Or Towing . . . . . . . . . . . 15
Driving or Winching onto or off of a Transport Vehicle. . . . . . . . . . . 16
Lift And Support The Machine . . . . . . . . . . . . . . . . . 18
Section 10 - Maintenance . . . . . . . . . . . . . . 19
Machine Maintenance – General . . . . . . . . . . . . . . . . 19
Pre-Start Inspection Checklist . . . . . . . . . . . . . . . . . 20
Frequent Inspection Checklist . . . . . . . . . . . . . . . . . 21
Annual Inspection Checklist . . . . . . . . . . . . . . . . . 30
Section 11 - Control Component Locations . . . . . . . . . 33
Control Component Locations. . . . . . . . . . . . . . . . . 33
Section 12 - Fault Codes . . . . . . . . . . . . . . . 34
FaultCodes.....................34

Page iii SE Series - Service & Parts Manual
March 2020
Section 13 - Parameter Adjustment . . . . . . . . . . . . 37
Parameter Adjustment. . . . . . . . . . . . . . . . . . . 37
Section 14 - Schematics . . . . . . . . . . . . . . . 40
Hydraulic Schematic - 1930SE . . . . . . . . . . . . . . . . 40
Hydraulic Components - 1930SE . . . . . . . . . . . . . . . . 41
Hydraulic Schematic - 2632SE, 3346SE, 4046SE, 4555SE . . . . . . . . . 42
Hydraulic Components - 2632SE, 3346SE, 4046SE, 4555SE . . . . . . . . 43
Function Valves . . . . . . . . . . . . . . . . . . . . 44
Electrical Schematic - 1930SE . . . . . . . . . . . . . . . . 45
Harness Control Circuit - 1930SE . . . . . . . . . . . . . . . . 46
Electrical Schematic - 2632SE, 3346SE, 4046SE, 4555SE . . . . . . . . . 47
Harness Control Circuit - 2632SE, 3346SE, 4046SE, 4555SE . . . . . . . . 48
WiringDiagram....................49
Chapter 2 - Parts . . . . . . . . . . . . . . 50
Parts Introduction ................50
Section 15 - Chassis ................51
Chassis Assembly - 1930SE . . . . . . . . . . . . . . . . . 51
Chassis Assembly - 2632SE . . . . . . . . . . . . . . . . . 53
Chassis Assembly - 3346SE, 4046SE. . . . . . . . . . . . . . . 55
Chassis Assembly - 4555SE . . . . . . . . . . . . . . . . . 57
Steering Wheel Assembly - 1930SE . . . . . . . . . . . . . . . 59
Steering Wheel Assembly - 2632SE, 3346SE, 4046SE, 4555SE . . . . . . . . 61
Rear Wheel Assembly - 1930SE . . . . . . . . . . . . . . . . 63
Rear Wheel Assembly - 2632SE, 3346SE, 4046SE, 4555SE. . . . . . . . . 65
Pothole Protection Assembly - 1930SE . . . . . . . . . . . . . . 67
Pothole Protection Assembly - 2632SE, 3346SE, 4046SE, 4555SE . . . . . . . 69
Battery Module Assembly - 1930SE . . . . . . . . . . . . . . . 71
Battery Module Assembly - 2632SE, 3346SE, 4046SE, 4555SE . . . . . . . . 73
Control Module Assembly - 1930SE . . . . . . . . . . . . . . . 75
Control Module Assembly - 2632SE, 3346SE, 4046SE, 4555SE . . . . . . . . 77
Hydraulic Tank Assembly - 1930SE . . . . . . . . . . . . . . . 79
Hydraulic Tank Assembly - 2632SE, 3346SE, 4046SE, 4555SE . . . . . . . . 81
Motor Controller Assembly - 1930SE . . . . . . . . . . . . . . . 83
Motor Controller Assembly - 2632SE, 3346SE, 4046SE, 4555SE . . . . . . . 85
Limit Switch Assembly. . . . . . . . . . . . . . . . . . . 87
Pipe Bracket Assembly . . . . . . . . . . . . . . . . . . 89
Ground Controls Assembly - 1930SE . . . . . . . . . . . . . . . 91
Ground Controls Assembly - 2632SE, 3346SE, 4046SE, 4555SE . . . . . . . 93
Section 16 - Scissor . . . . . . . . . . . . . . . . 95
Scissor Installation. . . . . . . . . . . . . . . . . . . . 95
Scissor Assembly - 1930SE . . . . . . . . . . . . . . . . . 97
Scissor Assembly - 2632SE . . . . . . . . . . . . . . . . . 99
Scissor Assembly - 3346SE . . . . . . . . . . . . . . . . 101
Scissor Assembly - 4046SE, 4555SE . . . . . . . . . . . . . . 103

Page iv SE Series - Service & Parts Manual
March 2020
Section 17 - Platform. . . . . . . . . . . . . . . . 107
Platform Installation . . . . . . . . . . . . . . . . . . 107
Main Platform Assembly - 1930SE, ~Serial #164000294 . . . . . . . . . 109
Platform Extension Assembly - 1930SE, ~Serial #164000294 . . . . . . . .111
Main Platform Assembly - 1930SE, Serial #164000295~ . . . . . . . . . .113
Platform Extension Assembly - 1930SE, Serial #164000295~ . . . . . . . .115
Main Platform Assembly - 2632SE . . . . . . . . . . . . . . .117
Platform Extension Assembly - 2632SE . . . . . . . . . . . . . .119
Main Platform Assembly - 3346SE . . . . . . . . . . . . . . 121
Main Platform Assembly - 4046SE, 4555SE . . . . . . . . . . . . 123
Platform Extension Assembly - 3346SE, 4046SE, 4555SE . . . . . . . . 125
Platform Extension Lock Assembly . . . . . . . . . . . . . . 127
Platform Controls . . . . . . . . . . . . . . . . . . . 129
Hindley Platform Controls . . . . . . . . . . . . . . . . . 131
Section 18 - Hydraulics . . . . . . . . . . . . . . . 133
Lower Lift Cylinder Assembly . . . . . . . . . . . . . . . . 133
Upper Lift Cylinder Assembly - 3346SE, 4046SE, 4555SE Only . . . . . . . 135
Hoses & Fittings - 1930SE. . . . . . . . . . . . . . . . . 137
Hoses & Fittings - 2632SE. . . . . . . . . . . . . . . . . 139
Hoses & Fittings - 3346SE, 4046SE . . . . . . . . . . . . . . 141
Hoses & Fittings - 4555SE. . . . . . . . . . . . . . . . . 143
Functions Manifold. . . . . . . . . . . . . . . . . . . 145
Section 19 - Electrical System . . . . . . . . . . . . . 147
Electrical Harness - 1930SE . . . . . . . . . . . . . . . . 147
Electrical Harness - 2632SE , 3346SE . . . . . . . . . . . . . 149
Electrical Harness - 4046SE , 4555SE . . . . . . . . . . . . . 151
Section 20 - Decals . . . . . . . . . . . . . . . . 153
Decal Locations - 1930SE. . . . . . . . . . . . . . . . . 153
Decal Locations - 2632SE, 3346SE . . . . . . . . . . . . . . 156
Decal Locations - 4046SE, 4555SE . . . . . . . . . . . . . . 160

Page 1 SE Series - Service & Parts Manual
March 2020
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 benefits 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 SE Series - Service & Parts Manual
March 2020
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 satisfied 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
efforts towards Continuous Improvement, due to which product specifications 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, CA93630 USA
Toll Free: 1 - 877 - 632 - 5438
Phone: 1 - 559 - 842 - 1500
Fax: 1 - 559 - 842 - 1520
[email protected]
www.MECawp.com
MEC Aerial Work Platforms
MEC Operator Policy
Section 1 - MEC Operator Policy

Page 3 SE Series - Service & Parts Manual
March 2020
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 efficient 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 “fixes” 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 SE Series - Service & Parts Manual
March 2020
Specifications - 1930SE, 2632SE, 3346SE
1930SE 2632SE 3346SE
Working Height* 25 ft 7.8 m 32 ft 10 m 39 ft 12 m
Platform Height 19 ft 5.8 m 26 ft 8 m 33 ft 10 m
Maximum Drive Height 19 ft 5.8 m 26 ft 8 m 33 ft 10 m
Stowed Height Top Guardrail 79.75 in 2.02 m 91 in 2.3 m 96.5 in 2.5 m Rails Folded N/A 78 in 5 m 75 in 1.9 m
Platform Floor 40.75 in 1.04 m 48 in 1.22 m 53 in 1.35 m
Guardrail Height 39 in 1 m 43.5 in 1.11 m 43.5 in 1.11 m
Toeboard Height 6 in 15 cm 6 in 15 cm 6 in 15 cm
Machine Weight** (Unloaded) 3,120 lb 1,415 kg 4,796 lb 2,180 kg 5,566 lb 2,530 kg
Lift Capacity Total 500 lb 227 kg 500 lb 227 kg 750 lb 340 kg
Sheet Material Rack Capacity† 110 lb† 50 kg† 110 lb† 50 kg† 250 lb† 113 kg†
Deck Extension Capacity 1 Person / 250 lb (113 kg) 1 Person / 250 lb (113 kg) 1 Person / 250 lb (113 kg)
Maximum Occupants 2 2 2
Length-Stowed (Overall) 74 in 1.86 m 97 in 2.46 m 97 in 2.46 m
Length-Stowed (Ladder Removed) 66 in 1.67 m 89.5 in 2.27 m 89.5 in 2.27 m
Platform Length (Extended) 100 in 2.54 m 124.5 in 3.16 m 124.5 in 3.16 m
Platform Length (Retracted) 65 in 1.65 m 89.5 in 2.27 m 89.5 in 2.27 m
Width (Overall) 30 in 76 cm 32 in 81 cm 47 in 1.19 m
Platform Width (Outside) 29 in 74 cm 32 in 81 cm 44 in 1.12 m
Wheel Base 54 in 1.36 m 74 in 1.87 m 74 in 1.87 m
Turning Radius - Inside 0 in 0 cm 0 in 0 cm 0 in 0 cm
Ground Clearance - Stowed 3.25 in 8.3 cm 4 in 10 cm 4 in 10 cm
Ground Clearance - Elevated .625 in 1.6 cm 0-.7 in 2 cm 0-.7 in 2 cm
Drive Speed
(Proportional) Stowed 0-2.8 mph 0-4.5 km/h 0-2.5 mph 0-4 km/h 0-2.5 mph 0-4 km/h
Raised Or Extended 0-0.5 mph 0-0.8 km/h 0-0.5 mph 0-0.8 km/h 0-0.5 mph 0-0.8 km/h
Gradability 25%/14° 25%/14° 25%/14°
Maximum Side Slope - Stowed 5° 5° 5°
Tilt Sensor Settings 2° side-to-side
3° fore-and-aft 2° side-to-side 3° fore-and-aft 2° side-to-side 3° fore-and-aft
Ground Pressure/Wheel 130 psi 9.14 kg/cm2154 psi 10.8 kg/cm2160 psi 11.2 kg/cm2
Maximum Wheel Load 1,450 lb 658 kg 2,122 lb 960 kg 2,508 lb 1,140 kg
Occupied Floor Pressure 263 psf 1,284 kg/m2268 psf 1,308 kg/m2224 psf 1,091 kg/m2
Maximum Operating Wind Speed 28 mph
12.5 m/sec (45 km/h) 28 mph 12.5 m/sec (45 km/h) 28 mph 12.5 m/sec (45 km/h)
Tire Size 12 × 4 inch/305 × 100 mm 15 × 5 inch/381 × 127 mm 15 × 5 inch/381 × 127 mm
Wheel Bolt Torque 19 ft-lb / 25.5 Nm 19 ft-lb / 25.5 Nm 19 ft-lb / 25.5 Nm
Hydraulic Pressure 3,000 psi/ 207 bar 3,000 psi/ 207 bar 3,000 psi/ 207 bar
Power System Voltage 24 Volt DC / 210Ah 24 Volt DC / 225 Ah 24 Volt DC / 240 Ah
Battery Charger Input 110-230 V AC, 50-60 Hz 110-230 V AC, 50-60 Hz 110-230 V AC, 50-60 Hz
Output 24 Volt DC 24 Volt DC 24 Volt DC
Batteries Four 6-Volt deep cycle
210 Ah Four 6-Volt deep cycle 225 Ah Four 6-Volt deep cycle 240 Ah
Meets applicable requirements of ANSI A92.6-2006.
*Working Height adds 6 feet (2 m) to platform height.
**Weight may increase with certain options.
†Sheet material weight is part of the total platform capacity. This may limit capacity to one occupant.
Section 3 - Specifications
Specifications - 1930SE, 2632SE, 3346SE

Page 5 SE Series - Service & Parts Manual
March 2020Section 3 - Specifications
Specifications - 4046SE, 4555SE
4046SE 4555SE
Working Height* 46 ft 14 m 51 ft 15.7 m
Platform Height 40 ft 12 m 45 ft 13.7 m
Maximum Drive Height 40 ft 12 m 45 ft 13.7 m
Stowed Height Top Guardrail 102 in 2.6 m 102 in 2.6 m Rails Folded 79 in 2.0 m 79 in 2.0 m
Platform Floor 58 in 1.48 m 58 in 1.48 m
Guardrail Height 43.5 in 1.11 m 43.5 in 1.11 m
Toeboard Height 6 in 15 cm 6 in 15 cm
Machine Weight** (Unloaded) 6,820 lb 3,100 kg 7,190 lb 3,260 kg
Lift Capacity Total 550 lb 250 kg 500 lb 227 kg
Deck Extension Capacity 1 Person / 250lb (113 kg) 1 Person / 250lb (113 kg)
Maximum Occupants 2 2
Length-Stowed (Overall) 98 in 2.5 m 112 in 2.85 m
Length-Stowed (Ladder Removed) 89.5 in 2.27 m 104 in 2.65 m
Platform Length (Extended) 124.5 in 3.16 m 139 in 3.53 m
Platform Length (Retracted) 89.5 in 2.27 m 104 in 2.65 m
Width (Overall) 47 in 1.2 cm 55 in 1.4 cm
Platform Width (Outside) 44 in 1.12 cm 44 in 1.12 cm
Wheel Base 74 in 1.87 m 87 in 2.22 m
Turning Radius - Inside 0 in 0 cm 0 in 0 cm
Ground Clearance - Stowed 4 in 10 cm 4 in 10 cm
Ground Clearance - Elevated 0.7 in 2 cm 0.7 in 2 cm
Drive Speed
(Proportional) Stowed 0-2.5 mph 0-4 km/h 0-2.5 mph 0-4 km/h
Raised Or Extended 0-0.5 mph 0-0.8 km/h 0-0.5 mph 0-0.8 km/h
Gradability 25%/14° 25%/14°
Maximum Side Slope - Stowed 5° 5°
Tilt Sensor Settings 2° side-to-side
3° fore-and-aft 2° side-to-side 3° fore-and-aft
Ground Pressure/Wheel 167 psi 11.7 kg/cm2256 psi 18 kg/cm2
Maximum Wheel Load 2,948 lb 1,340 kg 3,076 lb 1,395 kg
Occupied Floor Pressure 255 psf 1240 kg/m2194 psf 947 kg/m2
Maximum Operating Wind Speed 28 mph
12.5 m/sec (45 km/h) 28 mph 12.5 m/sec (45 km/h)
Tire Size 15 × 5 inch/381 × 127 mm 15 × 5 inch/381 × 127 mm
Wheel Bolt Torque 19 ft-lb / 25.5 Nm 19 ft-lb / 25.5 Nm
Hydraulic Pressure 3,000 psi/ 207 bar 3,000 psi/ 207 bar
Power System Voltage 24 Volt DC / 300Ah 24 Volt DC / 300Ah
Battery Charger Input 110-230 V AC, 50-60 Hz 110-230 V AC, 50-60 Hz
Output 24 Volt DC 24 Volt DC
Batteries Four 12-Volt deep cycle
300 Ah Four 12-Volt deep cycle 300 Ah
Meets applicable requirements of ANSI A92.6-2006.
*Working Height adds 6 feet (2 m) to platform height.
**Weight may increase with certain options.
†Sheet material weight is part of the total platform capacity. This may limit capacity to one occupant.