Electric Scissor Lift: Major Parts
مكونات
What is the scissor lift consists of?
الاجابة
3.3 Major Assemblies
The aerial platform consists of three major assemblies: base, lifting mechanism and platform.
3.3-1 Base
The base is a rigid, one-piece weldment which supports two swing out trays.(البطارية والفليود)
On Models 3215 and 3219 (Compacts):
One tray contains the hydraulic and electrical components. The other tray contains four (4) 6 volt batteries. The charger is located at the rear of the aerial platform. The front axle has two hydraulic motor-driven wheels, steerable by a hydraulic cylinder. The rear axle is fixed and has non-driven, spring-applied, hydraulically released brake.
On Models 3220, 3226, 4626, 4632,
(Conventionals):
One tray contains the hydraulic and electrical components. The other tray contains battery charger and four (4) 6 volt batteries. The front axle has two non-driven wheels, steerable by a hydraulic cylinder. The rear axle has two hydraulic motor driven wheels with spring-applied, hydraulically released brakes.
2.3-5 Entrance Side
• Main Power Disconnect Switch
- Turn main power disconnect switch to “ ” off position.
- Ensure all cables are secure and switch is in proper working condition.
• Base Control Switches
- Ensure there are no signs of visible damage and all switches are in their neutral positions.
• Free-wheeling Valve Knob (Compacts - Front Side)
- Ensure there are no loose or missing parts and there is no visible damage.
• Brakes
- Ensure there are no loose or missing parts and there is no visible damage.
- Ensure tabs are not locked.
• 110V Outlet Receptacle
- Ensure receptacle is free from dirt and obstructions.
• Ladder
- Ensure there are no loose or missing parts and there is no visible damage.
2.3-6 Battery Tray Side
• Pothole Protection Device
- Ensure mechanisms have no sign of visible damage and are free from dirt and obstructions.
• Battery Tray
- Ensure tray latch is secure and in proper working order.
• Battery Charger (Compacts - Entrance Side)
- Ensure charger is secure and shows no visible damage.
• Battery
الاجابة
3.3 Major Assemblies
The aerial platform consists of three major assemblies: base, lifting mechanism and platform.
3.3-1 Base
The base is a rigid, one-piece weldment which supports two swing out trays.(البطارية والفليود)
On Models 3215 and 3219 (Compacts):
One tray contains the hydraulic and electrical components. The other tray contains four (4) 6 volt batteries. The charger is located at the rear of the aerial platform. The front axle has two hydraulic motor-driven wheels, steerable by a hydraulic cylinder. The rear axle is fixed and has non-driven, spring-applied, hydraulically released brake.
On Models 3220, 3226, 4626, 4632,
(Conventionals):
One tray contains the hydraulic and electrical components. The other tray contains battery charger and four (4) 6 volt batteries. The front axle has two non-driven wheels, steerable by a hydraulic cylinder. The rear axle has two hydraulic motor driven wheels with spring-applied, hydraulically released brakes.
2.3-5 Entrance Side
• Main Power Disconnect Switch
- Turn main power disconnect switch to “ ” off position.
- Ensure all cables are secure and switch is in proper working condition.
• Base Control Switches
- Ensure there are no signs of visible damage and all switches are in their neutral positions.
• Free-wheeling Valve Knob (Compacts - Front Side)
- Ensure there are no loose or missing parts and there is no visible damage.
• Brakes
- Ensure there are no loose or missing parts and there is no visible damage.
- Ensure tabs are not locked.
• 110V Outlet Receptacle
- Ensure receptacle is free from dirt and obstructions.
• Ladder
- Ensure there are no loose or missing parts and there is no visible damage.
2.3-6 Battery Tray Side
• Pothole Protection Device
- Ensure mechanisms have no sign of visible damage and are free from dirt and obstructions.
• Battery Tray
- Ensure tray latch is secure and in proper working order.
• Battery Charger (Compacts - Entrance Side)
- Ensure charger is secure and shows no visible damage.
• Battery
Proper battery condition is essential to good performance and operational safety. Improper fluid levels or damaged cables and connections can result in component damage and hazardous conditions.
WARNING
Explosion hazard. Keep flames and sparks away. Do not smoke near batteries.
WARNING
Battery acid is extremely corrosive - Wear proper eye and facial protection as well as appropriate protective clothing. If contact occurs, immediately flush with cold water and seek medical attention.
1. Check battery case for damage.
2. Clean battery terminals and cable ends thoroughly with a terminal cleaning tool or wire brush.
3. Ensure all battery connections are tight.
4. If applicable, check battery fluid level. If plates are not covered by at least 1/2” (13 mm) of solution, add distilled or demineralized water.
5. Replace battery if damaged or incapable of holding a lasting charge.
WARNING
Use original or manufacturer-approved parts and components for the aerial platform.
• Steer Cylinder Assembly
- Ensure steer cylinder assembly is properly secured and there are no loose or missing parts.
• Wheel/Tire Assembly
The aerial platform is either equipped with solid rubber tires or foam-filled tires. Tire and/or wheel failure could result in an aerial platform tip-over. Component damage may also result if problems are not discovered and repaired in a timely fashion.
- Check all tire treads and sidewalls for cuts, cracks, punctures and unusual wear.
- Check each wheel for damage and cracked welds.
- Check each lug nut for proper torque to ensure none are loose.
- Check wheel motor assembly for loose or missing parts and signs of visible damage.
- Ensure wheels are aligned and true vertically and horizontally.
• Tie Rod (Conventionals)
- Ensure there are no loose or missing parts, tie rod end studs are locked and there is no visible damage.
• Greasing Points
- Ensure greasing points have no sign of visible damage and are free from dirt and obstructions.
2.3-7 Hydraulic/Electric Tray Side
- Ensure tray latch is secure and in proper working order.
• Pothole Protection Device
- Ensure mechanisms have no sign of visible damage and are free from dirt and obstructions.
• Hydraulic Tank
- Ensure hydraulic filler cap is secure.
- Ensure tank shows no visible damage and no evidence of hydraulic leakage.
• Hydraulic Oil
- Ensure platform is fully lowered, and then visually inspect the sight gauge located on the side of the hydraulic oil tank.
- The hydraulic oil level should be at or slightly above the top mark of the sight glass.
• Hydraulic Pump and Motor
- Ensure there are no loose or missing parts and there is no visible damage.
• Electrical Panel
- Ensure panel is properly secured and there is no visible damage.
- Ensure there are no loose wires or missing fasteners.
• Proportional and Main Manifolds
- Ensure all fittings and hoses are properly tightened and there is no evidence of hydraulic leakage.
- Ensure there are no loose wires or missing fasteners.
• Emergency Lowering Access Rod (If Equipped)
- Ensure rod is properly secured and there is no visible damage.
7 Outrigger
8 Transport tie-down
9 Emergency lowering knob
10 Steer tire
11 Pothole guard
12 Ground controls
13 LCD readout
14 Non-steer tire
15 Brake release pump
16 Entry ladder / transport tie-down
17 Battery charger (on battery side of machine)
18 Tilt alarm
3.3-2 Lifting Mechanism
The lifting mechanism is constructed of formed steel or tube sections making up a scissor-type assembly. The scissor assembly is raised and lowered by single-acting hydraulic lift cylinders with holding valves. A pump, driven by an electric motor, provides hydraulic power to the lift cylinders.
2.3-9 Lifting Mechanism
1. Raise the platform (refer to Section 3.8-2) until there is adequate clearance to swing down the maintenance support (refer to Section 3.12).
• Maintenance Support
- Ensure maintenance support is properly secured and shows no visible damage.
• Scissor Assembly
- Ensure scissor assembly shows no visible damage and no signs of deformation in weldments.
- Ensure all pins are properly secured.
- Ensure cables and wires are properly routed and shows no signs of wear and/or physical damage.
• Scissor Bumpers
- Ensure bumpers are secure and shows no sign of visible damage.
• Rollers
- Ensure rollers are secure and there is no visible damage.
- Ensure rollers’ path of travel are free from dirt and obstructions.
• Lift Cylinder(s)
- Ensure each lift cylinder is properly secured, there are no loose or missing parts and there is no evidence of damage.
- Ensure all fittings and hoses are properly tightened and there is no evidence of hydraulic leakage.
2. Raise the platform until there is adequate clearance to swing up the maintenance support.
3. Swing up maintenance support into storage bracket.
4. Fully lower the platform.
19 Inverter (optional)
20 Safety arm
3.3-3 Platform
The platform is constructed of a tubular support frame, a skid-resistant “diamond plate” deck surface and 39” hinged guardrails with 6” toe boards and mid-rails. The platform can be entered from the rear through a spring returned gate with latch. The platform is also equipped with a manual extension platform. An AC outlet is also located on the platform.
2.3-8 Platform Assembly
WARNING
Ensure that you maintain three points of contact to mount/dismount platform.
1. Use the ladder of aerial platform to access platform.
2. Close the gate.
- Ensure there are no loose or missing parts and there is no visible damage.
- Ensure all fasteners are securely in place.
- Ensure all railings are properly positioned and secured.
- Ensure gate is in good working order.
• Lanyard Attachment Anchors
- Ensure attachment rings are secure and no visible damage.
• AC Outlet on Platform
- Ensure outlet has no visible damage and free from dirt or obstructions.
• Platform Control Console
- Ensure all switches and controller are returned to neutral and are properly secured.
- Ensure there are no loose or missing parts and there is no visible damage.
• Manuals
- Ensure a copy of operating manual and ANSI/ CSA certificate are enclosed in manual storage box.
- Check to be sure manual storage box is present and in good condition.
- Ensure manuals are legible and in good condition.
- Always return manuals to the manual storage box after use.
• Powered Extension Control Console (If Equipped)
- Ensure all switches are returned to neutral and are properly secured.
- Ensure there are no loose or missing parts and there is no visible damage.
WARNING
Ensure that you maintain three points of contact to mount/dismount platform.
3. Use the ladder to dismount from platform.
3.5-6 Manual Storage Box
This weather-resistant box is mounted on the platform railings. It contains operating manual, ANSI manual of responsibility and ANSI/CSA certificate. The operating manual for this make and model of aerial platform must remain with the aerial platform and should be stored in this box.
3.5-8 Lanyard Attachment Anchorage
1. Lanyard Attachment Anchorage - Use this as an attachment point for safety belt/harness tethers. Do not attach belts/harnesses to any other point on the platform. Do not use this point to lift, anchor, secure or support the platform or any other apparatus or material.
WARNING
The lanyard attachment anchorage is used for travel restraint, within the limits of the platform only. It is not a fall arresting device! Use as such could result in death or serious injury.
1 Platform guard rails
2 Lanyard anchorage point
3 Platform extension release pedal
4 Platform controls
5 Platform extension
6 Manual storage container
21 Air line to platform (optional)
22 GFCI outlet
23 Platform entry chain or gate
24 Foot switch (if equipped)
19 Air line to platform (optional)
20 Platform extension release pedal
21 GFCI outlet
22 Platform entry chain or gate
23 Foot switch (if equipped)
WARNING
Explosion hazard. Keep flames and sparks away. Do not smoke near batteries.
WARNING
Battery acid is extremely corrosive - Wear proper eye and facial protection as well as appropriate protective clothing. If contact occurs, immediately flush with cold water and seek medical attention.
1. Check battery case for damage.
2. Clean battery terminals and cable ends thoroughly with a terminal cleaning tool or wire brush.
3. Ensure all battery connections are tight.
4. If applicable, check battery fluid level. If plates are not covered by at least 1/2” (13 mm) of solution, add distilled or demineralized water.
5. Replace battery if damaged or incapable of holding a lasting charge.
WARNING
Use original or manufacturer-approved parts and components for the aerial platform.
• Steer Cylinder Assembly
- Ensure steer cylinder assembly is properly secured and there are no loose or missing parts.
• Wheel/Tire Assembly
The aerial platform is either equipped with solid rubber tires or foam-filled tires. Tire and/or wheel failure could result in an aerial platform tip-over. Component damage may also result if problems are not discovered and repaired in a timely fashion.
- Check all tire treads and sidewalls for cuts, cracks, punctures and unusual wear.
- Check each wheel for damage and cracked welds.
- Check each lug nut for proper torque to ensure none are loose.
- Check wheel motor assembly for loose or missing parts and signs of visible damage.
- Ensure wheels are aligned and true vertically and horizontally.
• Tie Rod (Conventionals)
- Ensure there are no loose or missing parts, tie rod end studs are locked and there is no visible damage.
• Greasing Points
- Ensure greasing points have no sign of visible damage and are free from dirt and obstructions.
2.3-7 Hydraulic/Electric Tray Side
- Ensure tray latch is secure and in proper working order.
• Pothole Protection Device
- Ensure mechanisms have no sign of visible damage and are free from dirt and obstructions.
• Hydraulic Tank
- Ensure hydraulic filler cap is secure.
- Ensure tank shows no visible damage and no evidence of hydraulic leakage.
• Hydraulic Oil
- Ensure platform is fully lowered, and then visually inspect the sight gauge located on the side of the hydraulic oil tank.
- The hydraulic oil level should be at or slightly above the top mark of the sight glass.
• Hydraulic Pump and Motor
- Ensure there are no loose or missing parts and there is no visible damage.
• Electrical Panel
- Ensure panel is properly secured and there is no visible damage.
- Ensure there are no loose wires or missing fasteners.
• Proportional and Main Manifolds
- Ensure all fittings and hoses are properly tightened and there is no evidence of hydraulic leakage.
- Ensure there are no loose wires or missing fasteners.
• Emergency Lowering Access Rod (If Equipped)
- Ensure rod is properly secured and there is no visible damage.
7 Outrigger
8 Transport tie-down
9 Emergency lowering knob
10 Steer tire
11 Pothole guard
12 Ground controls
13 LCD readout
14 Non-steer tire
15 Brake release pump
16 Entry ladder / transport tie-down
17 Battery charger (on battery side of machine)
18 Tilt alarm
3.3-2 Lifting Mechanism
The lifting mechanism is constructed of formed steel or tube sections making up a scissor-type assembly. The scissor assembly is raised and lowered by single-acting hydraulic lift cylinders with holding valves. A pump, driven by an electric motor, provides hydraulic power to the lift cylinders.
2.3-9 Lifting Mechanism
1. Raise the platform (refer to Section 3.8-2) until there is adequate clearance to swing down the maintenance support (refer to Section 3.12).
• Maintenance Support
- Ensure maintenance support is properly secured and shows no visible damage.
• Scissor Assembly
- Ensure scissor assembly shows no visible damage and no signs of deformation in weldments.
- Ensure all pins are properly secured.
- Ensure cables and wires are properly routed and shows no signs of wear and/or physical damage.
• Scissor Bumpers
- Ensure bumpers are secure and shows no sign of visible damage.
• Rollers
- Ensure rollers are secure and there is no visible damage.
- Ensure rollers’ path of travel are free from dirt and obstructions.
• Lift Cylinder(s)
- Ensure each lift cylinder is properly secured, there are no loose or missing parts and there is no evidence of damage.
- Ensure all fittings and hoses are properly tightened and there is no evidence of hydraulic leakage.
2. Raise the platform until there is adequate clearance to swing up the maintenance support.
3. Swing up maintenance support into storage bracket.
4. Fully lower the platform.
19 Inverter (optional)
20 Safety arm
3.3-3 Platform
The platform is constructed of a tubular support frame, a skid-resistant “diamond plate” deck surface and 39” hinged guardrails with 6” toe boards and mid-rails. The platform can be entered from the rear through a spring returned gate with latch. The platform is also equipped with a manual extension platform. An AC outlet is also located on the platform.
2.3-8 Platform Assembly
WARNING
Ensure that you maintain three points of contact to mount/dismount platform.
1. Use the ladder of aerial platform to access platform.
2. Close the gate.
- Ensure there are no loose or missing parts and there is no visible damage.
- Ensure all fasteners are securely in place.
- Ensure all railings are properly positioned and secured.
- Ensure gate is in good working order.
• Lanyard Attachment Anchors
- Ensure attachment rings are secure and no visible damage.
• AC Outlet on Platform
- Ensure outlet has no visible damage and free from dirt or obstructions.
• Platform Control Console
- Ensure all switches and controller are returned to neutral and are properly secured.
- Ensure there are no loose or missing parts and there is no visible damage.
• Manuals
- Ensure a copy of operating manual and ANSI/ CSA certificate are enclosed in manual storage box.
- Check to be sure manual storage box is present and in good condition.
- Ensure manuals are legible and in good condition.
- Always return manuals to the manual storage box after use.
• Powered Extension Control Console (If Equipped)
- Ensure all switches are returned to neutral and are properly secured.
- Ensure there are no loose or missing parts and there is no visible damage.
WARNING
Ensure that you maintain three points of contact to mount/dismount platform.
3. Use the ladder to dismount from platform.
3.5-6 Manual Storage Box
This weather-resistant box is mounted on the platform railings. It contains operating manual, ANSI manual of responsibility and ANSI/CSA certificate. The operating manual for this make and model of aerial platform must remain with the aerial platform and should be stored in this box.
3.5-8 Lanyard Attachment Anchorage
1. Lanyard Attachment Anchorage - Use this as an attachment point for safety belt/harness tethers. Do not attach belts/harnesses to any other point on the platform. Do not use this point to lift, anchor, secure or support the platform or any other apparatus or material.
WARNING
The lanyard attachment anchorage is used for travel restraint, within the limits of the platform only. It is not a fall arresting device! Use as such could result in death or serious injury.
1 Platform guard rails
2 Lanyard anchorage point
3 Platform extension release pedal
4 Platform controls
5 Platform extension
6 Manual storage container
21 Air line to platform (optional)
22 GFCI outlet
23 Platform entry chain or gate
24 Foot switch (if equipped)
19 Air line to platform (optional)
20 Platform extension release pedal
21 GFCI outlet
22 Platform entry chain or gate
23 Foot switch (if equipped)
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