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Chapter 7 – Controls

AB46JE – 0260072 

21 

Hold the emergency power switch downward in the 

direction of the white arrow to activate the emergency 

power system. 

Release the switch to disengage the emergency 

power system.

Circuit Breaker Reset Buttons

The lower control panel system has a 10 amp circuit 

breaker for the internal relays and toggle switches, and a 

25 amp circuit breaker for the main control system circuit. 

The reset buttons for the circuit breaker are at the top of 

the lower control panel (refer to Figure 7.2).

The upper control panel has a 10 amp circuit breaker  for 

the upper control system circuit, with the reset button on 

the front of the upper control panel (refer to Figure 7.3).

Figure 7.3 – Upper Control Panel Front

The electrical power outlet at the platform has a 15 amp 

circuit breaker. The reset button is on the left side of the 

electrical box (refer to Figure 7.4). 

Figure 7.4 – Electrical Power Outlet

The circuit breakers protect the electrical wiring and 

components from electrical overload in case of a short 

circuit or other fault.

Upper Control

Circuit Breaker

Upper Control

Circuit Breaker

Circuit Breaker 

Reset Button

Circuit Breaker 

Reset Button

A

Caution

A tripped circuit breaker indicates a malfunction in 
the electrical system. Component damage may result 
if the cause of the malfunction is not corrected. Do 
not operate the aerial platform if the circuit breaker 
trips repeatedly.

Push the button to reset the circuit breaker.

Upper Controls

The   upper controls (refer to Figure 7.5) are located on 

the control panel at the platform. Boom, platform, and 

drive functions can be operated from the upper controls. 

The following controls are located on the upper control 
panel.

Emergency stop button

Drive joystick

Steer Switch

Drive range switch

Boom speed knob

Rotation switch

Riser switch

Boom elevation switch

Boom extension switch

Jib articulation switch

Platform level switch

Platform rotation switch

Em

ergency power switch

Horn Switch

Emergency Stop Button

The emergency stop is a two-position, red push button on 

top of the upper control panel (refer to Figure 7.5).

Push the button inward to disconnect power to the 

upper control circuits.

Pull the button outward to restore power.

Note
The lower controls override the upper controls. If the up-
per control emergency stop button is engaged the lower 
controls can still be used to operate the aerial platform.

Push the emergency stop button inward when the 

upper controls are not in use to protect against unin-

tentional operation.

Drive Joystick

The drive joystick (refer to Figure 7.5) is used to control 

forward and reverse motion of the aerial platform. The 

distance the joystick is moved is proportional to the ma-

chine drive speed.

Hold the joystick forward to move the aerial platform 

forward, and backward to move in reverse as indicated 

by the directional arrows on the chassis. Drive and steer 

functions may be operated simultaneously. 

Summary of Contents for AB46JE

Page 1: ...Part Number 0260072 July 2008 Operator s Manual...

Page 2: ...ock hazard resulting in death or serious injury If an aerial platform is in contact with an energized conductor the platform operator must warn ground personnel in the vicinity to stay away Their bodi...

Page 3: ...draulic Fluid Level Sight Gauge 16 Chapter 6 Batteries General Maintenance 17 Charging 17 Chapter 7 Controls Battery Disconnect Switch 19 Lower Controls 19 Start Switch 19 Emergency Stop Button 19 Con...

Page 4: ...tion 39 Lower Controls 39 Upper Controls 40 Boom Operation 40 Driving and Steering 41 Drive Speeds 41 All Motion Alarm 42 Gradeability 42 Theoretical Gradeability 42 Actual Gradeability 42 Percent vs...

Page 5: ...r to assure that the correct manual will be supplied All information in this manual is based on the latest product information at the time of publication Snorkel reserves the right to make product cha...

Page 6: ...thod of repair take all precautions to prevent damage to electronic circuitry and devices on the machine This includes but may not be limited to disconnecting battery cables and electronic devices Do...

Page 7: ...ic Fluid Filter Tie Down Lifting Lugs Front Axle Drive Control Compartment Hydraulic Pump Drive Motors Battery Charger Level Sensor Tie Down Lugs Battery Disconnect Switch Operator s Manual Front Plat...

Page 8: ...Chapter 2 Specifications 4 AB46JE 0260072 Working Envelope Feet Meters 20 6 1 15 4 6 10 3 0 5 1 5 35 10 7 5 1 5 10 3 0 25 7 6 30 9 1 15 4 6 20 6 1 25 7 6 30 9 1 40 12 2 45 13 7 50 15 2 0 55 16 7...

Page 9: ...people Function Speed Turntable rotation 65 to 85 seconds Riser Up 25 to 30 seconds Down 15 to 20 seconds Main boom Up 25 to 30 seconds Down 18 to 23 seconds Extend 12 to 16 seconds Retract 26 to 30...

Page 10: ...Chapter 2 Specifications 6 AB46JE 0260072...

Page 11: ...and is not insulated Regard all conductors as energized Do not operate outside during a thunderstorm Minimum Safe Approach Distance Minimum safe approach distances to energized power lines and their a...

Page 12: ...between moving components Death or serious injury will result from becoming trapped between components buildings structures or other obstacles Make sure there is sufficient clear ance around the machi...

Page 13: ...and doors are securely fastened Do not exceed the platform capacity as indicated on the platform rating placard on the platform Do not carry loads that extend beyond the platform guardrails without pr...

Page 14: ...ry by escaping hydraulic fluid seek medical attention at once Do not place your hand or any part of your body in front of escaping hydraulic fluid Use a piece of cardboard or wood to search for hydrau...

Page 15: ...ion Switch Emergency Stop Button Emergency Power Switch Ground Operation Switch Emergency Stop Button Chapter 4 Safety Devices Figure 4 2 Upper Controls Push the emergency stop button inward to discon...

Page 16: ...e platform refer to Figure 4 4 contains a ground fault circuit interrupter GFCI to provide protection for personnel Lanyard Anchors Platform Foot Switch Toeboard Gravity Gate Mid Rail Top Rail Gravity...

Page 17: ...s are being operated The alarm is used to warn personnel in the work area to stand clear Flashing Light An amber flashing light may be located on the top of the counterweight The flashing light warns...

Page 18: ...Chapter 4 Safety Devices 14 AB46JE 0260072...

Page 19: ...d on the lower control panel refer to Figure 5 1 It measures the accumulated aerial platform operating time Figure 5 1 Lower Controls Drive Fault Light The drive fault light is located on the lower co...

Page 20: ...the aerial platform in the stowed posi tion booms completely down and retracted Otherwise the cylinders act as large reservoirs for hydraulic fluid making the level appear too low The fluid level shou...

Page 21: ...er is located at the rear of the chassis AWarning Batteries give off hydrogen and oxygen that can com bine explosively Death or serious injury can result from a chemical explosion Charge the batteries...

Page 22: ...the battery charger plugged in until it shuts itself off Note If the charging cycle exceeds 16 hours without the bat teries being fully recharged unplug the charger and have the batteries checked 8 A...

Page 23: ...to the center off position Hold the switch to the right to rotate the turntable counterclockwise Hold the switch to the left to rotate the turntable clockwise Chapter 7 Controls ADanger Pinch points...

Page 24: ...oor with respect to the ground The switch is spring returned to the center off position Hold the switch upward to tilt the platform floor upward or away from the ground Hold the switch downward to til...

Page 25: ...al platform if the circuit breaker trips repeatedly Push the button to reset the circuit breaker Upper Controls The upper controls refer to Figure 7 5 are located on the control panel at the platform...

Page 26: ...lockwise Riser raise lower Jib raise lower Platform rotate level Set the knob to slow turtle when beginning a movement The speed may be increased by slowly rotating the knob toward fast rabbit For smo...

Page 27: ...h refer to Figure 7 5 is used to level the platform floor with respect to the ground The switch is spring returned to the center off position Hold the switch upward to tilt the platform floor upward o...

Page 28: ...Chapter 7 Controls 24 AB46JE 0260072...

Page 29: ...latform This chapter includes information on properly inspecting the aerial platform and includes a prestart inspection check list at the end of the chapter to ensure that no areas are overlooked AWar...

Page 30: ...indicator for proper charging rate refer to Figure 8 3 Figure 8 3 Battery Disconnect Panel As the batteries become charged the indicator light for each level of charge will blink until its level is re...

Page 31: ...in the hydrau lic system Some have poor lubricating character istics and may increase component wear Only use hydraulic fluid as recommended 4 If necessary remove the filler cap and add fluid of the p...

Page 32: ...the emergency stop button inward to turn off the electrical power 2 Test opetate the lower control functions to make sure they no longer operate Emergency Power To test the emergency power system from...

Page 33: ...witch on 3 Operate any control function and visually check to see that the light is flashing approximately one flash per second Level Sensor Level Sensor Note There is not an off switch for the flashi...

Page 34: ...the controls switch in the upper control position 3 At the upper controls pull the emergency stop button outward refer to Figure 8 14 Lanyard Anchors Toeboard Gravity Gate Mid Rail Top Rail Gravity G...

Page 35: ...ximum travel speeds are interlocked through limit switches on the riser and main boom that senses the position of the booms When the main boom is raised approximately 1 3 8 cm or extended approximatel...

Page 36: ...warn personnel in the area that the aerial platform is in motion Power Input Connector Power Input Connector Test Button Reset Button Test Button Reset Button Placards and Decals To inspect the placar...

Page 37: ...6 This machine is equipped with foam filled or solid tires wheel weight is critical for stability To prevent machine tip over replace tires with factory approved foam filled or solid tires ONLY attemp...

Page 38: ...JURY 0323897 1 2 Y OU HAVE B E E N TR AINE D IN THE S AFE OP E R ATION OF THIS DE VIC E AND HHHH Y OU K NOW AND F OLLOW THE S AF E TY AND OP E R ATING R E C OMME NDATIONS C ONTAINE D IN THE MANUFAC TU...

Page 39: ...ritical for stability To prevent machine tip over replace tires with factory approved foam filled or solid tires ONLY attempt to inflate foam filled or solid tires DO NOT 0073298 MAC HINE TIP OVE R HA...

Page 40: ...Chapter 8 Prestart Inspection 36 AB46JE 0260072 0072530 0072530 Upper Controls Platform 0072531 0072531 0072541 0181656 0072541 0182236...

Page 41: ...lug nuts present and properly torqued Lower Control Station Operating controls Proper operation Emergency stop and emergency power Shuts off lower controls proper operation Level Sensor Sounds tilt al...

Page 42: ...Chapter 8 Prestart Inspection 38 AB46JE 0260072...

Page 43: ...ground position refer to Figure 9 1 Chapter 9 Operation The aerial platform may be operated from either the lower or upper controls ADanger The aerial platform is not electrically insulated Death or...

Page 44: ...Switch Platform Foot Switch Figure 9 1 Lower Controls 2 Insert the key into the start switch and turn the switch to the on position 3 Hold the ground operation switch upward while operating the boom a...

Page 45: ...areas with the turntable and booms in the stowed position After arriving at the work area the booms may be positioned to the side or the front of the chassis for final positioning Always look in the...

Page 46: ...tical condi tions It too is based on mathematical calculation but it also takes into account the practical application At any given moment when driving the machine on a slope at least one if not all o...

Page 47: ...the 2x4 2 Holding the downhill end raise the 2x4 until the level indicates that the board is level refer to Figure 9 6 Figure 9 6 Percent Grade Calculation 3 Use the tape measure to measure the distan...

Page 48: ...r before moving the aerial platform Figure 9 7 Power Input Connector Air Line The optional air line may be used to conduct air for tool operation at the platform The input connector is at the rear of...

Page 49: ...30 0 76 m vertical rise in 10 3 05 m horizontal length Use a winch to load and unload the aerial platform on ramps that exceed the grade capability of the machine A winch may also be used when condit...

Page 50: ...10 2 Front Tie Down Lifting Lugs Tie Down Lifting Lugs Tie Down Lifting Lugs 6 At each drive wheel remove the two bolts from the disconnect plate refer to Figure 10 3 Turn the plate over so the nippl...

Page 51: ...ay of putting a corner protector in the hole of the lifting lug 5 Use spreader bars of sufficient length to keep the chains straps or cables from contacting the turn table booms and steer cylinders Ti...

Page 52: ...ring the aerial platform to the transport vehicle 8 Use a nylon strap to securely fasten the platform against the wood block Thread the strap through the tie down brackets at the front of the platform...

Page 53: ...tion Switch Emergency Stop Button Emergency Power Switch Ground Operation Switch Emergency Stop Button Control Selector Switch Start Switch Control Selector Switch Start Switch Chapter 11 Emergency Op...

Page 54: ...50 AB46JE 0260072 Figure 11 4 Platform Foot Switch Platform Foot Switch Platform Foot Switch 3 Hold the emergency power switch in the emergency power position 4 Hold the appropriate function toggle s...

Page 55: ...battery charge indicator light to shut off All functions stop working Low fluid level in reservoir Check hydraulic fluid level Add correct type of fluid if necessary Motor or pump failure Manually st...

Page 56: ...acity exceeded Remove load from platform Refer to platform capacity placard for maximum capacity Machine is not on a level surface or too steep of a grade Lower the platform and drive to a level surfa...

Page 57: ...From the upper controls Pull the emergency stop button out ward and then step on the platform foot switch Drive fault light flashes 7 times Low battery voltage Recharge the batteries Drive fault ligh...

Page 58: ...tlet Hydraulic fluid temperature of 200 F 93 C or more Prolonged boom operation Stop operation until fluid cools High pressure fluid return to reservoir caused by kinked or twisted hose Remove the kin...

Page 59: ...an be transmitted through a single wheel to the floor or ground Minimum Safe Approach Distance the minimum safe distance that electrical conductors may be approached when using the aerial platform Als...

Page 60: ...Appendix A Glossary AB46JE 0260072...

Page 61: ...d Warranty beyond the normal warranty period of the machine upon which the part was installed THIS WARRANTY EXCLUDES AND SNORKEL DOES NOT WARRANT 1 Engines motors tires and batteries which are manufac...

Page 62: ......

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