Mec SEAC Slab Series Guide

Part # 96121
March 2022
Service & Parts Manual
This manual applies to AC machines ANSI A92.20-2020 & CSA B354.6-2019.
1930SE Serial Number Range 17400100 - Up
2632SE Serial Number Range 17500100 - Up
3346SE Serial Number Range 17600100 - Up
4046SE Serial Number Range 17700100 - Up
4555SE Serial Number Range 17800100 - Up
SEAC Slab Series
ART_4908

Page i SEAC Slab Series - Service & Parts Manual
March 2022
Revision History
Date Reason for Update
March 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 SEAC Slab Series - Service & Parts Manual
March 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 - 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
Calibration Instructions . . . . . . . . . . . . . . . . . . 31
Annual Inspection Checklist . . . . . . . . . . . . . . . . . 33
Section 11 - Control Component Locations . . . . . . . . . . 36
Control Component Locations. . . . . . . . . . . . . . . . . 36
Section 12 - Fault Codes . . . . . . . . . . . . . . . 37
FaultCodes.....................37

Page iii SEAC Slab Series - Service & Parts Manual
March 2022
Section 13 - Parameter Adjustment . . . . . . . . . . . . 40
Parameter Adjustment. . . . . . . . . . . . . . . . . . . 40
Section 14 - Schematics . . . . . . . . . . . . . . . 43
Hydraulic Schematic - 1930SE . . . . . . . . . . . . . . . . 43
Hydraulic Components - 1930SE . . . . . . . . . . . . . . . . 44
Hydraulic Schematic - 2632SE, 3346SE, 4046SE, 4555SE . . . . . . . . . 45
Hydraulic Components - 2632SE, 3346SE, 4046SE, 4555SE . . . . . . . . 46
Function Valves . . . . . . . . . . . . . . . . . . . . 47
Electrical Schematic - 1930SE . . . . . . . . . . . . . . . . 48
Harness Control Circuit - 1930SE . . . . . . . . . . . . . . . . 49
Electrical Schematic - 2632SE, 3346SE, 4046SE, 4555SE . . . . . . . . . 50
Harness Control Circuit - 2632SE, 3346SE, 4046SE, 4555SE . . . . . . . . 51
WiringDiagram....................52
Chapter 2 - Parts . . . . . . . . . . . . . . 54
Parts Introduction .................54
Section 15 - Chassis.................55
Steer Linkage and Wheels Assembly, 1930SEAC ............55
Steer Linkage and Wheels Assembly, 2632SEAC-4555SEAC .........57
Pothole Protection Assembly, 1930SEAC ..............59
Pothole Protection Assembly, 2632SEAC-4555SEAC ...........61
Battery Pack Module, 1930SEAC ................63
Battery Pack Module, 2632SEAC-4555SEAC .............65
Power Unit Module, 1930SEAC.................67
Power Unit Module, 2632SEAC-4555SEAC ..............69
Ground Control and Cover Assembly, 1930SEAC ............71
Ground Control Cover Assembly, 2632SEAC-4555SEAC ..........73
Ground Control Assembly, 1930SEAC-4555SEAC ............75
Hydraulic Tank Assembly, 1930SEAC ...............77
Hydraulic Tank Assembly, 2632SEAC-4555SEAC ............79
Motor Controller Assembly, 2632SEAC-4555SEAC ............81
Pump Motor Assembly, 1930SEAC ................83
Pump Motor Assembly, 2632SEAC-4555SEAC .............85
Rear Wheel and Ladder, 1930SEAC ...............87
Rear Wheel and Ladder, 2632SEAC-4555SEAC ............89
Charger Assembly, 1930SEAC .................91
Chassis Accessory Installation, 1930SEAC..............93
Ground Control and Limit Switch, 2632SEAC-4555SEAC ..........95
Section 16 - Scissor . . . . . . . . . . . . . . . . . 97
Scissor Assembly, 1930SEAC .................97
Scissor Assembly, 2632SEAC .................99
Scissor Assembly, 3346SEAC ................ 103
Scissor Assembly, 4046SEAC ................ 107
Scissor Assembly, 4555SEAC .................111

Page iv SEAC Slab Series - Service & Parts Manual
March 2022
Section 17 - Platform . . . . . . . . . . . . . . . . 115
Main Platform Assembly, 1930SEAC ...............115
Platform Extension Assembly, 1930SEAC ..............117
Main Platform Assembly, 2632SEAC ...............119
Platform Extension Assembly, 2632SEAC ............. 121
Main Platform Assembly, 3346SEAC .............. 123
Main Platform Assembly, 4046SEAC-4555SEAC ........... 125
Platform Extension Assembly, 3346SEAC-4555SEAC .......... 127
Platform Locking Device Assembly, 1930SEAC-4555SEAC ......... 129
Platform Control Assembly, 1930SEAC-4555SEAC ........... 131
Platform Control Box Assembly, 1930SEAC-4555SEAC.......... 133
Section 18 - Hydraulics . . . . . . . . . . . . . . . . 135
Lower Lift Cylinder Assembly, 1930SEAC ............. 135
Lower Lift Cylinder Assembly, 2632SEAC-4555SEAC .......... 137
Upper Lift Cylinder Assembly, 2632SEAC-4555SEAC .......... 139
Function Manifold, 1930SEAC ................ 141
Function Manifold, 2632SEAC-4555SEAC ............. 143
Hydraulic Hoses and Fittings, 1930SEAC ............. 145
Hydraulic Hoses and Fittings, 2632SEAC ............. 147
Hydraulic Hoses and Fittings, 3346SEAC-4046SEAC .......... 149
Hydraulic Hoses and Fittings, 4555SEAC ............. 151
Section 19 - Electrical System . . . . . . . . . . . . . . 153
Electrical Harness, 1930SEAC ................ 153
Electrical Harness, 2632SEAC-4555SEAC ............. 155
Power to Platform, 1930SEAC ................ 157
Power to Platform, 2632SEAC-4555SEAC ............. 159
Section 20 - Decals . . . . . . . . . . . . . . . . . 161
Decals, 1930SE . . . . . . . . . . . . . . . . . . . 161
Decals, 2632SE & 3346SE . . . . . . . . . . . . . . . . 163
Decals, 4046SE & 4555SE . . . . . . . . . . . . . . . . 165

Page 1 SEAC Slab Series - Service & Parts Manual
March 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 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 SEAC Slab Series - Service & Parts Manual
March 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 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, 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 SEAC Slab Series - Service & Parts Manual
March 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 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.
•
•
•
•
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Safety Symbols & General Safety Tips
Section 2 - Safety Symbols & General Safety Tips

Page 4 SEAC Slab Series - Service & Parts Manual
March 2022
Specifications - 1930SE, 2632SE, 3346SE
1930SE 2632SE 3346SE
Working Height* Indoor 25 ft 7.8 m 32.2 ft 10 m 38.8 ft 12 m
Outdoor 25 ft 7.8 m 26 ft 8 m 32 ft 10 m
Platform Height Indoor 19 ft 5.8 m 26.2 ft 8 m 32.8 ft 10 m
Outdoor 19 ft 5.8 m 20 ft 6.1 m 26 ft 8 m
Maximum Drive Height 19 ft 5.8 m 26.2 ft 8 m 32.8 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 43.3 in 1.1 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) 3,440 lb 1,560 kg 4,870 lb 2,210 kg 5,670 lb 2,570 kg
Maximum Lift Capacity 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 Indoor 2 Persons 2 Persons 2 Persons
Outdoor 1 Person 1 Person 1 Person
Manual Force Indoor 90 lbs 400 N 90 lbs 400 N 90 lbs 400 N
Outdoor 45 lbs 200 N 45 lbs 200 N 45 lbs 200 N
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 0.625 in 1.6 cm 0-0.7 in 2 cm 0-0.7 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 1,180 lb 535 kg 1,600 lb 725 kg 1,900 lb 860 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 / 225Ah 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, 210 Ah Four 6-Volt deep cycle, 210 Ah
Chassis Inclination 1.5 Side 3.0 Inline 1.5 Side 3.0 Inline 1.5 Side 3.0 Inline
Meets applicable requirements of ANSI A92.20-2018.
*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 SEAC Slab Series - Service & Parts Manual
March 2022Section 3 - Specifications
Specifications - 4046SE, 4555SE
4046SE 4555SE
Working Height* Indoor 44.7 ft 13.6 m 51 ft 15.7 m
Outdoor 36 ft 11 m 41 ft 12.5 m
Platform Height Indoor 38.7 ft 11.8 m 45 ft 13.7 m
Outdoor 30 ft 9.2 m 35 ft 10.7 m
Maximum Drive Height 38.7 ft 11.8 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) 7,000 lb 3,180 kg 7,600 lb 3,450 kg
Maximum Lift Capacity 550 lb 250 kg 500 lb 227 kg
Deck Extension Capacity 1 Person / 250 lb (113 kg) 1 Person / 250 lb (113 kg)
Maximum
Occupants Indoor 2 Persons 2 Persons
Outdoor 1 Person 1 Person
Manual Force Indoor 90 lbs 400 N 90 lbs 400 N
Outdoor 45 lbs 200 N 45 lbs 200 N
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 2,250 lb 1,020 kg 2,400 lb 1,090 kg
Occupied Floor Pressure 255 psf 1,240 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
Chassis Inclination 1.5 Side 3.0 Inline 1.5 Side 3.0 Inline
Meets applicable requirements of ANSI A92.20-2018.
*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.

Page 6 SEAC Slab Series - Service & Parts Manual
March 2022
Bolt Torque Specification - American Standard
Fasteners
Use the following values to apply torque unless a specific 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, molydisulphide grease, or other extreme pressure lubricants are
used, these torque values do not apply.
Section 4 - Torque Specifications
Bolt Torque Specification - American Standard

Page 7 SEAC Slab Series - Service & Parts Manual
March 2022Section 4 - Torque Specifications
Bolt Torque Specification - Metric Standard
Fasteners
Use the following values to apply torque unless a specific 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 6 8 8 11 9 11 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, molydisulphide grease, or other extreme pressure lubricants are
used, these torque values do not apply.

Page 8 SEAC Slab Series - Service & Parts Manual
March 2022Section 4 - Torque Specifications
Hydraulic Components Torque Table
Note:Always lubricate threads with clean hydraulic fluid prior to installation.
Use the following values to torque hydraulic components when a specific 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
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Page 9 SEAC Slab Series - Service & Parts Manual
March 2022
Maintenance Locks - 1930SE, 2632SE, 3346SE
DEATH OR SERIOUS INJURY HAZARD!
NEVER perform work or inspection on the machine with the platform
elevated without first blocking the scissor assembly with the
Maintenance Lock.
On machines equipped with two Maintenance Locks, both must be set to
safely work on or inspect the machine.
DO NOT engage the Maintenance Locks unless the platform in empty of
tools and material.
1930SE, 2632SE and 3346SE Machines:
On the 1930SE, the Maintenance Lock is located at the rear of the scissor stack. On the 2632SE and
3346SE, the Maintenance Lock is located at the front of the scissor stack.
Raise the platform approximately just high enough to rotate the Maintenance Lock into place.
Lift the Maintenance Lock, move it to the center of the scissor arm, then rotate it up to a vertical
position.
The Maintenance Lock must engage the scissor section above it.
DO NOT set it so that it hangs down.
Lower the platform until the Maintenance Lock rests securely on the link. Keep clear of the
Maintenance Lock when lowering the platform.
ART_5171
Typical
Maintenance
Lock
1.
2.
3.
Section 5 - Maintenance Locks
Maintenance Locks - 1930SE, 2632SE, 3346SE

Page 10 SEAC Slab Series - Service & Parts Manual
March 2022Section 5 - Maintenance Locks
Maintenance Locks - 4046SE, 4555SE
DEATH OR SERIOUS INJURY HAZARD!
NEVER PERFORM WORK OR INSPECTION ON THE MACHINE WITH
THE PLATFORM ELEVATED WITHOUT FIRST BLOCKING THE SCISSOR
ASSEMBLY WITH THE MAINTENANCE LOCK. DO NOT ENGAGE THE
MAINTENANCE LOCKS UNLESS THE PLATFORM IS EMPTY OF TOOLS
AND MATERIAL.
BOTH MAINTENANCE LOCKS MUST BE SET TO SAFELY WORK ON OR
INSPECT THE MACHINE.
There are two Maintenance Locks on these machines. Both must be set whenever work or inspection
is being performed on the machine.
The Maintenance Locks are located inside the scissor assembly.
Setting The Maintenance Locks
Raise the platform approximately 13 ft / 4 m from the ground,
just high enough to rotate the Maintenance Locks into place.
Lift the ladder-end Maintenance Lock, move it to the center of
the scissor arm, then rotate it down to a vertical position. Use
the machine entry ladder to reach the rear Maintenance Lock.
Lift the front-end Maintenance Lock, move it to the center of
the scissor arm, then rotate it up to a vertical position.
The Front End Maintenance Lock must
engage the scissor section above it.
DO NOT set it so that it hangs down.
Lower the platform until the Maintenance Locks rest lightly on
the scissor link cross tubes. Keep clear of the Maintenance
Locks when lowering the platform.
1.
2.
3.
4.
ART_5144
Maintenance Locks
Set
Set
ART_5145
Maintenance Locks

Page 11 SEAC Slab Series - Service & Parts Manual
March 2022Section 5 - Maintenance Locks
Stowing The Maintenance Locks
BOTH Maintenance Locks must be stowed
before lowering the platform
DO NOT attempt to lower the platform with
one maintenance lock in place.
Raise the platform approximately 1 ft / 0.3 m up so that the
Maintenance Locks clear the scissor link cross tubes.
Slide the ladder-end Maintenance Lock to the side and rotate
it stowed position. Use the machine entry ladder to reach the
rear Maintenance Lock.
Slide the front-end Maintenance Lock to the side and rotate it
stowed position.
Lower the platform.
Keep clear of the scissor linkage when lowering. If a Maintenance
Lock requires adjustment to stow it correctly, stop the lowering
function. Adjust the maintenance lock while stationary, then return
to the lowering function.
1.
2.
3.
4.
ART_5146
Maintenance Lock
ART_5147
Maintenance Locks
Stowed

Page 12 SEAC Slab Series - Service & Parts Manual
March 2022
Hydraulic System, Electrical System and Total System
Hydraulic System
HYDRAULIC FLUID UNDER PRESSURE CAN PENETRATE AND BURN
SKIN, DAMAGE EYES, AND MAY CAUSE SERIOUS INJURY, BLINDNESS,
AND EVEN DEATH. CORRECT LEAKS IMMEDIATELY.
HYDRAULIC FLUID LEAKS UNDER PRESSURE MAY NOT ALWAYS BE
VISIBLE. CHECK FOR PIN HOLE LEAKS WITH A PIECE OF CARDBOARD,
NOT YOUR HAND.
Electrical System
Prevent damage to battery and/or electrical system;
Always disconnect the negative battery cable first.
Always connect the positive battery cable first.
•
•
When the negative cable is installed, a spark will occur if contact is made between the positive side
of the battery and a metal surface on the machine. This can cause damage to the electrical system,
battery explosion, and personal injury.
Total System
FAILURE TO PERFORM PREVENTIVE MAINTENANCE AT
RECOMMENDED INTERVALS MAY RESULT IN THE UNIT BEING
OPERATED WITH A DEFECT THAT COULD RESULT IN INJURY OR
DEATH OF THE OPERATOR.
IMMEDIATELY REPORT TO YOUR SUPERVISOR ANY DEFECT OR
MALFUNCTION. ANY DEFECT SHALL BE REPAIRED PRIOR TO
CONTINUED USE OF THE AERIAL WORK PLATFORM.
INSPECTION AND MAINTENANCE SHOULD BE PERFORMED BY
QUALIFIED PERSONNEL FAMILIAR WITH THE EQUIPMENT.
Section 6 - Hydraulic System, Electrical System and Total System
Hydraulic System, Electrical System and Total System

Page 13 SEAC Slab Series - Service & Parts Manual
March 2022
Primary Machine Components
ART_5008C
Platform
Controls
Lanyard
Anchorage
Lanyard
Anchorage
Deck Extension
Release
Typical Machine
Lift Cylinders
Chassis
Tie-Down/
Lift Points
Entry Gate
Main Platform
Lower
Controls Emergency Lowering
Handle
Batteries
Motor
Controller
Hydraulic Pump
& Motor Hydraulic
Tank
Entry Ladder
Forklift Pocket
Pothole Guard
Forklift Pocket
BatteryTray
ControlsTray
Maintenance
Lock
Maintenance
Lock
Guard
Rails
Manuals
Case
Deck
Extension
Battery
Charger
Battery
Charger
Main Power
Switch
Section 7 - Primary Machine Components
Primary Machine Components

Page 14 SEAC Slab Series - Service & Parts Manual
March 2022
Emergency Systems and Procedures
IF THE CONTROL SYSTEM FAILS WHILE THE PLATFORM IS ELEVATED,
USE THE EMERGENCY LOWERING PROCEDURE TO SAFELY LOWER
THE PLATFORM.
DO NOT CLIMB DOWN THE ELEVATING ASSEMBLY OR EXIT THE
PLATFORM.
Emergency Stop
The machine is equipped with an EMERGENCY STOP switch at the
base controls and the platform control box.
Press the EMERGENCY STOP switch at any time to stop all
machine functions.
Turn switch clockwise to reset.
Either switch will stop all machine functions.
Both switches must be reset or machine will not operate.
•
•
•
•
ART_3353
Emergency Lowering
The Emergency Lowering System is used to lower the platform in case of
power failure.
To lower the platform, pull the Emergency Lowering Knob, located near
the Base Control panel.
Emergency
Lowering Handle
ART_5884
Section 8 - Emergency Systems and Procedures
Emergency Systems and Procedures

Page 15 SEAC Slab Series - Service & Parts Manual
March 2022
Free-Wheel Configuration for Winching or Towing
RUNAWAY HAZARD!
AFTER RELEASING THE BRAKES THERE IS NOTHING TO STOP
MACHINE TRAVEL. MACHINE WILL ROLL FREELY ON SLOPES.
ALWAYS CHOCK THE WHEELS BEFORE MANUALLY RELEASING THE
BRAKES.
The machine can be winched or towed short distances at speeds not to exceed:
1930SE - 0.5 mph
2632SE, 3346SE, 4046SE, 4555SE - 2.5 MPH (4 km/h)
Before towing or winching the machine, it is necessary to release the brakes. Reset the brakes after
towing or winching.
Brake Release Operation
Chock the wheels to prevent the machine from rolling.
Pull out the platform and emergency red Emergency Stop button to the “ON” position.
Turn the key switch to the “ground” position while pressing and holding down the “Menu Enter
Button” button on the ECU panel to enter the password input screen.
Press the “Menu Enter Button” 4 times to enter the Menu screen.
Press either the “Menu Up Button” or “Menu Down Button” button to switch to the Special mode
(“ 4. Special Mode “).
Press the “Menu Enter Button” button to display the Special mode. Press either the “Menu Up
Button” or “Menu Down Button” button to switch to the manual push menu (“ 1. Brake Release “).
Press “Menu Enter Button” button to display “long press to confirm release of brake”. Press
and hold down the “Menu Enter Button” button to show “Brake Released!” The horn will sound
signaling that all brakes have been released.
If you want to reset the brakes, turn the key switch to the “ground” position.
•
•
1.
2.
3.
4.
5.
6.
7.
8.
Section 9 - Transport and Lifting Instructions
Free-Wheel Configuration for Winching or Towing