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OPERATION MANUAL SJ46 AJ, SJ51 AJ, SJ63 AJ ARTICULATING BOOMS 213210AAAA December 2019...
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This manual is for MEWPs with serial numbers: SJ46 AJ, SJ51 AJ: B301 000 001 & Above SJ63 AJ: A302 000 001 & Above SJ63 AJ: B302 000 001 & Above Please refer to the website (www.skyjack.com) for contact information, other Serial Numbers, most recent Technical Manuals, and USB software.
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It may also be used to alert against unsafe practices. Blue Safety information. IMPORTANT IMPORTANT indicates a procedure essential for safe operation and which, if not followed, may result in a malfunction or damage to the MEWP . SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
3000 hours, whichever occurs first. Any defective The Skyjack Articulating Booms Lifts are designed part will be replaced or repaired by your local Skyjack to move personnel, tools, and materials to working dealer at no charge for parts or labor. In addition, positions.
Committee on High Risk Plant dated 27 May 2010. 2. Operators are required to conform to national, state or territorial/provincial and local health and safety regulations applicable to the operation of this MEWP . 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
Hinged tubular guardrails, with mid-rails, and ▪ Hydraulic pump and motor ▪ toe-boards Battery ▪ Tri-entry drop bars or an optional swing gate ▪ Swing drive. ▪ AC power socket ▪ Platform control console. ▪ SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
Maximum wind speed ▪ Maximum manual force ▪ MEWP weight ▪ Drive height ▪ Platform height ▪ System pressure ▪ Maximum wheel load ▪ Maximum incline ▪ Year of manufacture ▪ Model year ▪ 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
IMPORTANT Only use original or manufacturer-approved parts and components for the MEWP . NOTE Refer to the Skyjack web site (www.skyjack.com) for machine registration and the latest service bulletins before you do frequent/periodic or annual inspections. 1.4-3 Owner The owner is responsible for maintenance inspections and repairs.
DO NOT use the MEWP as a ground for welding. line sway in minimum distance calculation. If you do not obey, there is a risk of minor or moderate injury, or malfunction or damage to the MEWP . SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
DO NOT allow the entanglement of ropes, cables or hoses with the MEWP , adjacent structures or objects. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
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Be aware of blind spots when operating the MEWP . DO NOT exceed the maximum side force on the platform capacity label when elevated (refer to Section 7.7). SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
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Skyjack. capacity of the MEWP . Remove all personnel from the platform before you try to free a snagged platform with the base controls. DO NOT distribute the load unevenly. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
All occupants of this machine must wear personal fall- potentially flammable gases, explosive gases or protection equipment (PFPE) at all times. particles) are appropriate for the MEWP specifications Skyjack recommends the use of a full body harness (refer to Section 7.5).
8) on the MEWP . Do these tasks before the operation: 1. Worksite inspection. Refer to Section 2.4. 2. Daily visual and maintenance inspections. Refer Section 4.2. 3. Function tests. Refer to Section 4.3. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
The switch must be in the on position to operate the MEWP . The switch must be in the off position when you transport the MEWP or put it in storage. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
Platform-leveling override: This switch overrides the automatic platform-leveling function and controls the tilt up or tilt down function of the platform. Jib up/down: This switch controls the up or down movement of the jib. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
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Tip-over hazard. Do not operate the boom functions if the platform capacity is more than the rated platform capacity. If you do not obey, there is a risk of death or serious injury. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
Fuel: This light shows a low fuel level. or engine functions. f. Glow plug (diesel engine): This light illuminates until the glow plugs complete their timed-cycle. When the light goes off, you can start the engine. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
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When this switch is pulled back and then released, it disengages the differential lock and turns the differential light off. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
The platform must be lowered and retracted immediately. Refer to Section 6.2 for the instructions on how to recover from an inclined position. If you do not obey, there is a risk of death or serious injury. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
If the platform load sensing system stays in the fault mode, the emergency-power unit can be used ▪ to lower the platform. Remove the MEWP for servicing. Speak to a qualified service technician for repairs. If you do not obey, there is a risk of death or serious injury. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
Sensor bar: This bar is in front of the platform Figure 03 SJ46 AJ/SJ51 AJ brake release system control console. When you apply pressure to the sensor bar, it stops all functions. Reset: This button is on the top left corner of the platform control console.
Celsius alarm. 2. The generator switch is turned off. 3. No engine powered function from the platform has been used for more than 3 minutes. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
Lock-pins: The lock-pins secure the tray to the railings. NOTE Refer to the website (www.skyjack.com) for other optional equipment. 3.5-1 Flashing amber light The flashing amber light is on top of the turret of the MEWP .
Strap: The strap holds the panel in position. Foam Support: The foam support gives protection to the panel. Cradle: The cradles hold the pipes. Glazier Tray: The tray holds the panel. Strap: The straps secure the pipes to the cradle. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
Smart ID cards for MEWPs that have the access This set time is the time that the MEWP owner sets for control function. Skyjack does not supply or reset the access control operation. PIN codes or Smart ID cards. Speak to the MEWP...
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Do the function tests for these power connections in the set time: The main power disconnect switch ▪ The emergency-stop button on the base control ▪ console The base/off/platform key switch. ▪ 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
If the MEWP is damaged or has been modified from the initial factory-delivered condition, without permission from Skyjack, lock and tag the MEWP . Remove the MEWP from service. If you do not obey, there is a risk of death or serious injury.
▪ When you do the visual and daily maintenance The ground area below the MEWP . ▪ inspections, make sure you do an inspection of the limit switches, electrical components, and hydraulic components. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
Make sure all fittings and hoses are correctly ▪ 1. Do an inspection of the battery case for tightened and there are no hydraulic leaks. damage. 2. Make sure all the battery connections are tight. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
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Replace the filter element if The oil level must be between the marks L ▪ necessary. (low) and H (high). Add oil if it is necessary. Refer to the service manual for the recommended oil type. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
Add oil if it is necessary. Refer to the service manual for the recommended oil type. Hydraulic return filter (engine side for SJ46 AJ/SJ51 AJ) Make sure the filter element is attached and ▪ tight.
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Spilled fluids can damage the environment. When spilled fluids go into the water (for example, a sewage system, streams, rivers, or other surface water), they can kill aquatic life. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
Tie rod Make sure there are no loose or missing parts. ▪ Make sure the tie rod end studs are attached ▪ and tight. Make sure there is no visible damage. ▪ SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
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Section 7.6 for wheel/tire specifications. WARNING Do not use tires other than the tires that Skyjack specifies for this MEWP . Do not mix different types of tires or use tires that are not in good condition. Only replace the tires with the same types that are approved by Skyjack.
Make sure that the fall-protection anchorages ▪ are correctly installed. Make sure there is no visible damage. ▪ Footswitch Make sure the footswitch is in good working ▪ order and has not been tampered with, disabled or blocked. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
There are no loose or missing parts, and there ▪ is no visible damage. Cylinders Make sure the cylinders are correctly installed. ▪ Make sure there is no indication of leaks or ▪ damage. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
Glazier There are no loose or missing parts, and there ▪ is no visible damage. Pipe Rack There are no loose or missing parts, and there ▪ is no visible damage. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
▪ disconnect switch illuminates. 1. Turn the main power disconnect switch the off position. Result: The MEWP functions do not operate. ▪ 2. Turn the main power disconnect switch to the on position. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
Result: The engine speed increases from idle ▪ to intermediate. All the boom and platform functions operate as selected. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
Result: All the boom and platform functions ▪ do not operate. 9. Push the emergency-stop button to turn the engine off. 10. Pull the emergency-stop button. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
MEWP when you raise the platform. Do not lower the platform unless the area below is clear of personnel and obstructions. If you do not obey, there is a risk of death or serious injury. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
Result: The engine starts. ▪ 7. Do not press the footswitch, and do a test of each boom and platform function with the engine on. Result: The MEWP functions do not operate. ▪ 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
6. Press the sensor bar for more than 1 second and then release it. Result: The audible/visual alarm goes on ▪ immediately and stays on after the bar is released. The engine stops after 1 second. The reset button illuminates. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
The engine stops on/off switch to start the engine. after 1 second. The reset button illuminates. 16. While the audible/visual alarm is on, make sure the LED strobe light is also on. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
5. Put the wheels in the parallel position before you and operate each function control handle or continue with the next test. switch. Result: All the boom functions operate. The ▪ drive and steer functions do not operate. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
A service technician must do a check on the brake adjustments. 4.3-17 Do a test of the horn 1. Push the horn button Result: The horn makes a sound. ▪ 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
7. Slowly move the drive/steer controller handle to drive forward and then rearward. Result: The MEWP drives slower than when it ▪ was in the lowered travel position. 8. Fully retract the boom. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
3. Drive one of the steer tires onto a 15 cm block or curb. Result: The MEWP chassis tilts. ▪ 4. Retract the boom. Result: The steer axle oscillation unlocks ▪ The MEWP chassis is now level. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
Each item shall be inspected using the appropriate section PASS NOT APPLICABLE of the Skyjack operating manual. As each item is inspected, Add a comment if the item does not pass inspection. check or complete the appropriate box. Comment (if item does not pass inspection)
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Do a test of the EcoStart Do a test of the oscillating cylinders Page 2 of 2 1844AA NOTE: Make a copy of this page or go to www.skyjack.com for a copy that you can print. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
If you do not obey, there is a risk of power in an open or well-ventilated area. If you do death or serious injury. not obey, there is a risk of death or serious injury. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
The turret can be rotated 360 degrees emergency power switch to the function enable continuously. position. 2. Move the main boom raise/lower switch to the raise or lower position. Release the switch to stop. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
5. Select the start position from the engine start/ on/off switch until the engine starts. This switch enables all of the functions, with the exception of drive, if there is an engine malfunction. Refer to Section 6.1 for the emergency-lowering procedure. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
5.13 Move the jib up and down with the platform control console 1. Press and hold the footswitch. 2. Move the jib up/down switch to the up or down position. Release the switch to stop. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
Release the footswitch. 1. Press and hold the footswitch. NOTE 2. Move the platform rotation switch to the left or The turret can rotate 360 degrees continuously. right. Release the switch to stop. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
5. Turn the base/off/platform key switch to the off position and remove the key. 6. Push the emergency-stop button on the base control console. 7. Turn the main power disconnect switch to the off position. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
Do not try to free a snagged platform with the base controls until you remove all personnel from the platform. If you do not obey, there is a risk of death or serious injury. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
2. Turn the main power disconnect switch to the off position. CAUTION Do not use the hydraulic power with the brakes Figure 07 SJ46 AJ/SJ51 AJ brake release system disengaged. 3. Find the drive-bypass valve on the inboard side of the drive pump. Loosen the valve stem (identified with yellow paint) 90 degrees clockwise to bypass the drive pump.
MEWP is on a slope. If you do not obey, there is a risk of death or serious injury. Engage the brakes immediately after the MEWP is at the necessary location. If you do not obey, there is a risk of death or serious injury. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
7. Discard the wipes or rags in an approved WARNING container. Explosion hazard. Do not smoke in an area where MEWPs are kept or refueled. If you do not obey, there is a risk of death or serious injury. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
MEWP weight. Park the transport vehicle on a level surface. Use wheel chocks or blocks to prevent unintended vehicle movement during this operation. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
MEWP 3. Remove all personnel, tools, and materials from stays level when you hoist it. Refer to Figure 09 the platform. for SJ46 AJ/SJ51 AJ and Figure 10 for SJ63 AJ. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
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Move the MEWP for transport = 9 ” (230 mm) 46AJ 53” 53” (1346 mm) (1346 mm) Figure 09 Approximate center of gravity - SJ46 AJ/SJ51 AJ = 9 ” (230 mm) 46AJ 53” 53” (1346 mm) (1346 mm) Figure 10 Approximate center of gravity - SJ63 AJ NOTE Horizontally, the center of gravity is approximately in the middle of the MEWP , front to rear and side to side.
When you move the MEWP for transport with a winch line, refer to Section 6.4. 6. Tie-down the MEWP to the transport surface with the tie-down points. Figure 11 Machine tie-down SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
[6 ft 9 in] 2.03 m [6 ft 8 in] C 1.11 m E 0.28 m A 0.33 m B 0.39 m D 1.35 m [13 in] [15.25 in] [44 in] [53 in] [11 in] 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
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2.29 m [7 ft 6 in] B 1.50 m 75° [4 ft 11.25 in] 2.7 m [106.5 in] 70° 43.716 25.404 6.500 1.42 m [55.75 in] 4.34 m [14 ft 3 in ] 360° SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
[6 ft 9 in] 2.03 m [6 ft 8 in] C 1.11 m E 0.28 m A 0.33 m B 0.39 m D 1.35 m [13 in] [15.25 in] [44 in] [53 in] [11 in] 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
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2.29 m [7 ft 6 in] B 1.50 m 75° [4 ft 11.25 in] 2.7 m [106.5 in] 70° 43.716 25.404 6.500 1.42 m [55.75 in] 4.34 m [14 ft 3 in ] 360° SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
[8 ft 4 in] 2.44 m [8 ft ] A 0.33 m B 0.37 m C 1.12 m E 0.28 m D 1.35 m [44 in] [11 in] [13 in] [14.5 in] [53 in] 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
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B 2.21 m [7 ft 3 in] 2.44 m [8 ft] 65° 2.81 m [9 ft 2.5 in] 60° 1.11m 0.65m 5.31 m [17 ft 5 in] 0.17m 360° 1.60 m [63 in] SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
It must be filled out after an annual inspection has been completed. Do not use the MEWP if an inspection has not been recorded in the last 12 months. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
35.5 cm x 44.5 cm 2027AA WARNING Do not use tires other than the tires that Skyjack specifies for this MEWP . Do not mix different types of tires or use tires that are not in good condition. Only replace the tires with the same types that are approved by Skyjack.
1921AA Standard confi guration (SJ46 AJ, SJ51 AJ): 4WD + oscillating axles + 30.5 cm x 41.9 cm foam tires Standard confi guration (SJ63 AJ): 4WD + oscillating axles + 35.5 cm x 44.5 cm foam tires Gross MEWP weight: weight + platform capacity Wheel is the weight that can be experienced on one wheel.
Do not alter Do not tamper with or disable the limit switches or other safety devices. Model number* Product identifier. *The model number can be different from the one you see. Skyjack logo 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
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Label Pictorial Warning - body crush hazard Lift and tie-down points Only use these points to lift or tie-down the MEWP . Tie-down points Only use these points to tie-down the MEWP . SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
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Refer to the service manual for the wheel type, offset, pressure, and torque. Wheel load* Shows the maximum load applied to the ground by the specified wheel. *Each model has different wheel loads. Caution tape stripe 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
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Engine side Section 8 – Labels Engine side (continued) Description Label Pictorial Sound power level Guaranteed maximum sound power level SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
Use a padlock to lock the switch in position. QR code This code gives you fast access to the MEWP documentation, and the live MEWP data supplied by ELEVATE telematics (optional equipment). 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
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10. Pull out the plunger of the brake auto-reset valve to re- engage the brakes. 11. At the engine side, close the drive-bypass valve by rotating it 90 degrees counterclockwise to the normal position (flat is parallel to the shaft axis). SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
Description Label Pictorial Axldrive™ logo This MEWP complies with requirements of AS/NZS 1418.10:2011 standard Serial plate* MEWP identification and specifications. *The serial plate information changes with different MEWPs. ° ° 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
Do not alter Do not tamper with or disable the limit switches or other safety devices. Model number* Product identifier. *The model number can be different from the one you see. Skyjack logo SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
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Label Pictorial Warning - body crush hazard Lift and tie-down points Only use these points to lift or tie-down the MEWP . Tie-down points Only use these points to tie-down the MEWP . 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
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Refer to the service manual for the wheel type, offset, pressure, and torque. Wheel load* Shows the maximum load applied to the ground by the specified wheel. *Each model has different wheel loads. Caution tape stripe SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
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QR code This code gives you fast access to the MEWP documentation, and the live MEWP data supplied by ELEVATE telematics (optional equipment). 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
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Label Pictorial Warning - annual inspection Refer to the operation manual. Make sure the annual and daily inspections are done. Annual inspection Make sure the MEWP has received an annual inspection before operation. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
With the engine off, push and hold the start/function enable/ emergency-power switch in the emergency-power position to enable the emergency-power unit for emergency descent. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
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Replace the hydraulic fluid with the approved type (refer to the service manual). HIGH/MAX Hydraulic oil level Shows the minimum and maximum hydraulic oil level. LOW/MIN Do not smoke Do not smoke near this location. AC power plug Connect the AC supply here. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
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10. Pull out the plunger of the brake auto-reset valve to re- engage the brakes. 11. At the engine side, close the drive-bypass valve by rotating it 90 degrees counterclockwise to the normal position (flat is parallel to the shaft axis). 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
Follow Section 2.1-1 for the minimum distance to keep between all parts of the MEWP , occupants, or tools, and the electrical conductors. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
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Do not apply more than the specified side load. Operate the MEWP when the wind speed, which includes wind gusts, is less than the specified speed for this model. Skyjack logo Model number Product identifier. AC power plug Connect the AC supply here. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
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Rated for one (1) person for each anchorage point. Used for fall-restraint or fall-arrest. Manual storage box Shows the location of the operation manual. Hazard identification Read and understand the specified hazards with this MEWP before operation. Refer to Section SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
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MEWP when the wind speed, which includes wind gusts, is less than the specified speed for this model. Tip-over hazard Do not use air-filled tires. Use approved, matched tires only. Refer to Section 7. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
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Wear a full body-harness with a short lanyard in boom-type platforms. Elevating Work Platform Association (EWPA) clearance requirements Shows the clearance requirements for operation in a mobile plant that is not electrically insulated, which includes elevating work platforms near power lines. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
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Label Pictorial Do not alter Do not tamper with or disable the limit switches or other safety devices. Footswitch enable Press and hold the footswitch to enable the platform functions. Warning - crush hazard 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
Select high torque when you drive on a slope. Select high or low engine throttle speed with the low/high throttle switch. Select the differential lock switch to engage or disengage the differential lock. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
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1. Select the on position from the engine start/on/off switch, press and hold the footswitch, and select the emergency power. 2. Operate the necessary boom function to lower the platform. 213210AAAA SJ46 AJ, SJ51 AJ, SJ63 AJ...
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Select the boom extend/retract switch to extend or retract the boom. Select the jib up/down switch to move the jib up or down. Select the riser raise/lower controller to raise or lower the riser. SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA...
Section 9 – Unique Skyjack Features Your Skyjack MEWP may be equipped with the following unique features: At the heart of every Skyjack machine is our proven and simplistic control system. Skyjack’s color-coded and numbered wiring system make our machines the...
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