SOW_-_Enclosure_2_-_TM_HYEX_250G.pdf

TM 5-3805-302-10

TECHNICAL MANUAL

OPERATOR MANUAL

FOR

HYDRAULIC EXCAVATOR (HYEX)

(250G LCR)

TYPE 1 WITH HYDRAULIC THUMB AND QUICK LATCH

NSN 3805-01-649-4676 (EIC : ALL)

DISTRIBUTION STATEMENT A: - Approved for public release; distribution is unlimited.

HEADQUARTERS, DEPARTMENT OF THE ARMY

20 JUNE 2016

OPERATOR

EQUIPMENT DESCRIPTION AND DATA

EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES

Overview

The Hydraulic Excavator (HYEX), NSN 3805-01-649-4676, is a 25-27 Metric Ton, diesel powered, crawler mounted, bucket type hydraulic excavator with external hydraulic tool and attachment capabilities. The HYEX digs, elevates, swings, and dumps material by action of the boom, the arm, and the bucket.

The HYEX is powered by a John Deere six cylinder PowerTech 414 cu in. (6.8 L) engine driving two identical variable displacement, bent-axis, piston type hydraulic pumps and a fixed displacement, external gear pilot pump.

The hydraulic pumps and pilot pump combination provide the hydraulic and control pressure for the machine to operate.

Propulsion is provided by two speed hydraulic travel motors, (one on each side), that drive two track chains with 51 triple semi-grouser 32 in. (800 mm) wide track shoes. Each hydraulic travel motor is of a bidirectional planetary drive/axial piston motor design with spring applied and hydraulically released travel brakes.

The HYEX upper structure is capable of continuous 360 degree rotation driven by a swing gearbox and bidirectional swing motor mounted on top of the swing gearbox. The swing motor has a spring applied and hydraulically released park brake. The park brake prevents the upper structure from uncontrolled swinging. The swing park brake is released when swing, boom, arm, or bucket function is actuated.

The boom, arm, hydraulic thumb, and bucket hydraulic cylinders provide linear actuation for their associated components. These cylinders vary in size but are similar in design and function.

The HYEX is configured with a retractable hydraulic hose reel, with pressure and return hoses of 50 ft (15.24 m) length and 0.5 in. (1.27 cm) diameter, located on the cab side of the excavator to operate hand held tools. The hydraulic circuit is a controlled pressure source with adjustable flow rates between 8-12 GPM (30.28-45.42 LPM) with adjustable nominal pressure limit of 2,000 psi (137.89 bar).

Operating Capabilities

The HYEX can excavate undisturbed hard, medium, and soft soils to a depth range of 22ft 10in. (7m). Minimum horizontal bucket reach at ground level of 33 ft 2 in. (10.10 m). Maximum possible bucket and stick forces are capable of penetrating and excavating very difficult soils (such as caliche) and conditions (such as frozen soils).

The HYEX is capable of dumping into the Family of Medium Tactical Vehicles (FMTV), 5 ton with a bed height of 6 ft 9 in., to a M917 20 ton with a bed height of 10 ft 2 in. HYEX is capable of dumping into an Engineer Mission Module (EMM) when on equal level ground.

The HYEX operates under environmental climatic conditions from -25ºF to 120ºF (-31.6ºC to 48.8ºC) without restriction.

The HYEX will start and operate during and after fording operations in fresh water in any depth up to 40 in. (1 m) including wave action.

Attachments for HYEX are connected to the excavator arm (stick) using the Quick Latch, (a hydraulic quick connect/disconnect coupler system), and hydraulic quick-disconnect hydraulic hose connections on the arm. The only exception is the Deep Digging Attachment Arm that must be pinned directly to the end of the excavator arm.

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OPERATOR

THEORY OF OPERATION

SCOPE

This section explains how components of the HYEX work together. A functional description is given for the engine, Electronic Control Unit (ECU), fuel system, cooling system, electrical system, and hydraulic system.

ENGINE

The engine is a John Deere 6068H PowerTech Plus, 6.8L, 6-cylinder diesel engine. The 6068H includes a turbocharger, electronic control unit, 4-valves per cylinder head, electronic fuel injectors, and a high-pressure common rail fuel system. The 6068H is air-to-air after cooled to help reduce exhaust emissions while maintaining low-speed torque. The engine application includes a hydraulically-driven cool-on-demand fan system.

ECU

The electronic control system serves as an engine governor, controlling the engine speed by delivering fuel, in precise amounts, and at precise times according to a given set of engine conditions in relation to piston position.

In order to achieve this, the control system performs the following functions:

• Constantly monitors engine operating conditions

• Performs system diagnosis

• Notifies operator of machine faults through the monitor

• Derates or shuts down engine to prevent damage when necessary

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Attachments

The HYEX digging, loading, and construction attachments are as follows:

• Heavy Duty Bucket (for general purpose excavating in material such as dense clay and light rock) with heaped capacity of 1.63 cu yd (1.25 cu m), a 42 in. (107 cm) outside lip width, and five pick-shaped pointed teeth.

• Heavy Duty Bucket (for use with the deep digging attachment) with heaped capacity of 0.5 cu yd (0.38cu m), 30 in. (76 cm) outside lip width, and six pick-shaped pointed teeth.

• Ditch Cleaning Bucket (Utility) with heaped capacity of 1.77 cu yd (1.35cu m), 60 in. (152 cm) outside lip width, and no teeth.

• Ditch Cleaning Bucket (Utility), (for use with the deep digging attachment) with heaped capacity of 0.83 cu yd (0.63 cu m), 60 in. (152 cm) outside lip width, and no teeth.

• Hydraulic Thumb Clamp is configured to work with heavy duty bucket listed above, and is compatible with the ditch cleaning bucket listed above. The hydraulic thumb will fully retract or fold back when not in use, enabling unhampered use of bucket(s) and can be pinned in the fully retracted position directly to the end of the excavator arm (stick). The hydraulic thumb clamp must be removed when the deep dig arm is attached.

• Deep Digging Attachment Arm (20 ft (6.09 m) long) is pinned directly to the end of the excavator arm (stick). The Deep Digging Attachment Arm allows attachment of either the 30 in. (76 cm), 0.5 cu yd (0.38 cu m), digging bucket (with teeth), or the 60 in. (152 cm), 0.83 cu yd (0.63 cu m), ditch cleaning bucket (no teeth). This attachment uses additional counterweight and control selections to enable operation for digging to a depth of 40 ft (12.19 m).

• Hydraulic Impact Breaker (impact energy class of 5,000 lb-ft (6779 N•m)), with operating weight between 4,500-5,500 lb (2041.1-2494.7 kg), capable of 450 full stroke blows/min and using a tool with a diameter of 5.5 in. (13.97 cm). Each Hydraulic Impact Breaker is supplied with a moil point (1 each), a chisel point (1 each), and a blunt point (1 each).

• Hydraulic Driven Plate Compactor with a base plate size of 23.5 X 40 X 1.5 in. (59.69 X 101.6 X 3.81

cm) operating at 2100 blows/min and 15,250 lbs (6917.28 kg) of impulse force.

• Hydraulic Crushing Attachment, (Crush-All), is capable of operating as a loader, hopper, feeder, crusher, and conveyor. The Crush-All is capable of crushing concrete with and without rebar, stone, asphalt, brick, block, and debris with a maximum size of 24 in. Wide x 24 in. Long x 10 in. (60.96 cm wide x 60.96 cm long x 25.4 cm) thick, and has maximum hopper capacity of 0.6 cu. Yd (0.45 cu m). The Crush-All has reversible strike plates to increase the operational serviceability interval.

• Vegetation Removal Tool, (VRT) is designed to process heavy organic material such as branches, stumps, heavy timber, and brush with a maximum diameter of 8 in. (20.3 cm). The VRT completes this action with the use of a rotor and 30 carbide cutting tools.

• Barrier Grappler is capable of lifting, moving, and emplacing barriers weighing 400-16,000 lb (181.4-7257.4 kg) with a barrier width of 6-12 in. (15.24-30.48 cm). The barrier grappler has a fully automatic actuator which allows the barriers to be lifted, latched, placed, and unlatched automatically without the aid of an assistant.

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IDENTIFICATION PLATES - Continued

EQUIPMENT DATA

Table 4. Equipment Data.

ENGINE:

Model 6068H PowerTech

Manufacturer John Deere

Horsepower (2,000 rpm) 177 hp (132 kW)

Number of Cylinders 6

Displacement 414 cu in. (6.8 L)

CAPACITIES:

Fuel Tank 132 gal (500 L)

Cooling System 6.0 gal (23.0 L)

Engine Oil (including oil filter) 5.2 gal (19.5 L)

Hydraulic Reservoir 39.0 gal (147.6 L)

Hydraulic System 63.4 gal (240.0 L)

Swing Gearbox 1.8 gal (7.0 L)

Travel Gearbox (each) 1.6 gal (6.2 L)

Pump Drive Gearbox 1.2 qt (1.1 L)

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The following information is required in the operators cab

OPERATOR INSTRUCTIONS

DESCRIPTION AND USE OF OPERATOR CONTROLS AND INDICATORS

INTRODUCTION

This Work Package (WP) is designed to familiarize the operator with controls and indicators. After reading and understanding the contents of this WP, read and understand the appropriate operation WP before operating equipment.

Table 1. Switch Panel.

HYEX05751

Figure 1. Switch Panel.

Key Control/Indicator Function

1 Back Button This is a press and release button. Press and release this button to return to the previous menu on the monitor.

2 Home Button This is a press and release button. Press and release this button to return to the default screen on the monitor. When the ignition switch is in the OFF position, press and hold this button to display the hour meter and fuel gauge.

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Table 1. Switch Panel - Continued.

Key Control/Indicator Function

3 MENU/SET Switch This is a press and release switch and also a rotary switch. When the default screen is displayed on the monitor, press and release the MENU/SET switch to go from the default screen to the main menu screen. Rotate the switch to highlight a menu function on the monitor. Press and release the switch to select the highlighted function or to confirm an action.

4 TUNE/AM-FM

Control

This is a press and release control and also a rotary control. Press and release the control to toggle between the Amplitude Modulation (AM) and Frequency Modulation (FM) frequencies. Rotate the control to adjust radio reception.

5 Radio VOL/PWR Control

This is a press and release control and a rotary control. Press and release the control to turn the radio ON/OFF. Rotate the control to adjust the volume.

6 Engine Speed Dial This is a rotary control. Rotate the control clockwise to increase engine speed. Rotate the control counterclockwise to decrease engine speed.

7 Auto-Idle (A/I) Switch

This is a two-position switch. In the ON position, the auto-idle feature is ON (auto-idle indicator will be displayed on monitor). In the OFF position, the auto-idle feature is OFF.

8 Travel Speed Switch

This is a two-position switch. It is used to select fast or slow speed of travel.

9 Power Mode Button This is a press and release button. This button is used to select different engine speed modes for different digging and excavating operations. Press and release the button to change modes. High power (H/P) mode is used when more hydraulic flow is desired for raising the boom and for bringing the arm in during excavation work. Power (PWR) mode is used when performing general digging operations. Economy (ECO) mode is used to increase efficiency and reduce engine noise. The monitor will display H/P, PWR, or

ECO.

10 Work Lights Switch This is a three-position, rotary switch. In the OFF position, the drive light and boom light are off and the switch panel illumination is off. In the 1 position, the drive light is on and the switch panel illumination is on. In the 2 position, the drive light, boom lights, front working lights, and switch panel illumination are on. The monitor also changes to night mode when the switch is in the 2 position.

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Table 1. Switch Panel - Continued.

11 Keypad The keypad contains 10 push buttons. The keypad has three different uses.

Use the keypad to switch between preset radio stations, press and release buttons 1 through 8 to switch between preset radio stations. Use the keypad to change the monitor background lighting from night mode to daytime mode when the work lights switch is in position 2. Press and release the 0 button on the keypad to change the monitor background lighting to daytime mode when the work lights switch is in position 2.

12 Key Switch This is a four-position switch. When in the OFF position, the key can be removed. In the ACC position, the monitor starts, the switch panel lights illuminate, and the radio can be operated. In the ON position, all electrical functions operate. In the START position, the engine's starter operates to crank the engine and when released returns to the ON position. In the OFF position, all electrical functions are disabled.

13 Windshield Wiper/ Washer Switch

This is a press and hold control and also a five-position rotary control. Press and hold the control to operate the windshield washers. The windshield washers will operate until the control is released. If the control is held down for more than 2 seconds, the windshield wiper will also operate until the control is released. In the ON mode, the windshield wiper operates continuously. The control has three intermittent (INT) positions: slow, medium, and fast. In slow, medium, and fast INT modes, the windshield wiper has a delay of 8 seconds (slow INT), 6 seconds (medium INT), or 3 seconds (fast INT) between sweeps. When the control is rotated to the OFF position, the windshield wiper will complete its sweep and then retract to the park position. The windshield wiper will not operate if the windshield is open.

Do not operate the windshield washers for more than 20 seconds.

14 Air Conditioner/ Heater Blower Speed Control

This is a press and release control and also a rotary control. Press and release the control to toggle the air conditioner/heater between the OFF, AUTO, and ON modes. If the blower speed control is rotated when the air conditioner/heater is in AUTO mode, AUTO mode is cancelled and the air conditioner/heater continues to operate in ON mode. When the air conditioner/heater is in ON mode, blower speed can be adjusted by rotating the blower speed control.

15 Air Conditioner/ Heater Temperature/Mode Control

This is a press and release control and also a rotary control. Press and release this control to toggle the air conditioner/heater between different air vent settings. The monitor will display the different settings each time the control is pressed. Rotate the control clockwise for cooler air and counterclockwise for warmer air. The monitor will display the temperature setting when the control is rotated.

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Table 2. Left Console.

Figure 2. Left Console.

Key Control/Indicator Function

1 Travel Alarm Switch This is a press and release rocker switch. Press and release the right side of the switch to turn off the travel alarm. The travel alarm will sound anytime the machine is moving under its own power. The travel alarm cannot be turned off in the first thirteen seconds of operation.

2 Rear Cab Work Lights Switch

This is a rocker switch. Press and release the right side of the switch to turn on the rear cab work lights. Press and release the left side of the switch to turn off the rear cab work lights.

3 Reversing Cooling Fan Switch

This is a rocker switch. Press and hold the right side of the switch (MANUAL) for 3 seconds to cause the engine cooling fan to reverse direction one time, for 30 seconds. Press and release the left side of the switch (AUTO) to cause the engine cooling fan to operate in the reverse direction for 30 seconds, once every 60 minutes. Press the switch to the OFF position to cause the engine cooling fan to resume normal operation.

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Table 3. Right Console.

Figure 3. Right Console.

Key Control/Indicator Function

1 Right Enable Switch

This is a rocker switch. Press and release the left side of the switch to disable the auxiliary functions located on the right joystick. Press and release the right side of the switch to enable the auxiliary functions located on the right joystick.

2 Service ADVISOR Remote (SAR) Switch

Not used.

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Table 4. Monitor.

HYEX05754

Figure 4. Monitor.

Key Control/Indicator Function

1 Monitor Displays the gauges and various indicators and alarm indicators. The monitor also displays the hour meter, clock, air conditioner/heater information, and radio information. Refer to Gauges, Indicators, and Alarm Indicators in this WP for more information.

2 Hour Meter Displays total machine operation hours.

3 Clock Displays present time.

4 Radio Display Displays selected radio station, radio frequency, and volume. Also refer to Radio Display in this WP.

5 Air Conditioner/ Heater Display

Displays blower fan speed, selected air vents, and temperature setting. Also refer to Air Conditioner/Heater Display in this WP.

6 Alarm Light Illuminates when an alarm indicator appears on the monitor.

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Table 5. Gauges and Indicators.

HYEX05755

Figure 5. Gauges and Indicators.

Key Control/Indicator Function

1 Work Mode Indicator

Displays indicator for the work mode selected in the monitor.

2 Power Mode Indicator

Displays indicator for H/P, PWR, or ECO modes. Power mode is controlled by the operator using the power mode button.

3 Fuel Gauge Displays fuel level.

4 Sub Meter Displays fuel consumption or breaker hours depending on what was selected in the monitor.

5 Coolant Temperature Gauge

Displays engine coolant temperature. When engine is operating and is fully warmed up, gauge needle should be in blue zone, near center of scale. If gauge needle is in red zone, allow engine to operate at idle speed under no load until needle is in blue zone. If needle continues to rise in red zone, stop engine.

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Table 6. Indicators.

HYEX05756

Figure 6. Indicators.

Key Control/Indicator Function

1 Auto Shut-Down Indicator

Not used.

2 Engine Preheat Indicator

Displays if engine preheating is required before starting. This indicator will not display if engine preheating is not required.

3 Seat Belt Indicator Displays when the ignition switch is ON and disappears when the engine starts.

4 Reversing Fan Indicator

Displays when reversing fan is activated.

5 Travel Speed Indicator

Display of rabbit or turtle indicates travel speed. Rabbit display indicates fast travel speed. Turtle display indicates slow travel speed. Travel speed is selected by operator using travel speed switch.

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Table 6. Indicators - Continued.

6 Auto-Idle Indicator Displays if Auto-Idle (A/I) mode is on. Auto-idle (A/I) mode is selected (ON/ OFF) by the operator using the Auto-Idle (A/I) switch.

Table 7. Alarm Indicators.

HYEX05757

1 2

BOOST

Figure 7. Alarm Indicators.

Key Control/Indicator Function

1 Engine Oil Level Alarm Indicator

Illuminates when engine oil is low. Alarm will sound with this indicator. Check engine oil level and add oil as needed. More information about this alarm can be accessed through the monitor.

2 Engine Oil Pressure Alarm Indicator

Illuminates when engine oil pressure is low. Alarm will sound with this indicator. Immediately stop engine. More information about this alarm can be accessed through the monitor.

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Table 7. Alarm Indicators - Continued.

3 Engine Start Disable Alarm Indicator

Illuminates when operator attempts to start engine and pilot shutoff lever is in the unlocked (down) position. More information about this alarm can be accessed through the monitor.

4 Engine Overheat Alarm Indicator

Illuminates when engine coolant temperature is high. Alarm will sound with this indicator. More information about this alarm can be accessed through the monitor.

5 Warning Alarm Indicator

Illuminates yellow or red when an abnormal operating condition has occurred. Alarm will sound with this indicator. More information about this alarm can be accessed through the monitor.

6 Coolant Level Alarm Indicator

Illuminates when engine coolant level is low. Alarm will sound with this indicator. More information about this alarm can be accessed through the monitor.

7 Engine Air Filter Restriction Alarm Indicator

Illuminates when engine air filters are clogged. Alarm will sound with this indicator. More information about this alarm can be accessed through the monitor.

8 Boost Temperature Alarm Indicator

Illuminates when engine intake air temperature is high. Alarm will sound with this indicator. More information about this alarm can be accessed through the monitor.

9 Hydraulic Oil Overheat Alarm Indicator

Illuminates when hydraulic oil temperature is high. Alarm will sound with this indicator. More information about this alarm can be accessed through the monitor.

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Table 8. Alarm Indicators.

HYEX05758

1 2

3 4

6 7 8

Figure 8. Alarm Indicators.

Key Control/Indicator Function

1 Hydraulic Oil Filter Restriction Alarm Indicator

Illuminates when hydraulic oil filter is clogged. Alarm will sound with this indicator. More information about this alarm can be accessed through the monitor.

2 Hydraulic Oil Cooling System Alarm Indicator

Illuminates when hydraulic oil cooling system is abnormal. Alarm will sound with this indicator. More information about this alarm can be accessed through the monitor.

3 Alternator Alarm Indicator

Illuminates when electrical system is abnormal. Alarm will sound with this indicator. More information about this alarm can be accessed through the monitor.

4 Fuel Level Alarm Indicator

Illuminates when fuel level is low. More information about this alarm can be accessed through the monitor.

5 Fuel Temperature Alarm Indicator

Illuminates when fuel temperature is high. Alarm will sound with this indicator. More information about this alarm can be accessed through the monitor.

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Table 8. Alarm Indicators - Continued.

6 Fuel Filter Restriction Alarm Indicator

Illuminates when fuel filter is clogged. Alarm will sound with this indicator.

More information about this alarm can be accessed through the monitor.

7 System Failure Alarm Indicator

Illuminates when satellite communication system is abnormal. Alarm will sound with this indicator. More information about this alarm can be accessed through the monitor. This is disabled on military version.

8 Pilot Shutoff Lever Alarm Indicator

Illuminates when the pilot shutoff lever system is abnormal. Alarm will sound with this indicator. More information about this alarm can be accessed through the monitor.

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Table 9. Pilot Shutoff Lever and Cab Door Release Lever.

HYEX05759

Figure 9. Pilot Shutoff Lever and Cab Door Release Lever.

Key Control/Indicator Function

1 Pilot Shutoff Lever This is a two-position lever. With the lever in the locked position (up), hydraulic functions cannot be operated. With the lever in the unlocked position (down), all hydraulic functions can be operated. The engine will not start with the lever in the unlocked position.

2 Cab Door Release Lever

This lever is used to release the cab door. Push down lever to release cab door from the locked-open position.

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Table 10. Travel Pedals and Levers and Attachment Pedal.

HYEX05760

1 2 3 5 64

Figure 10. Travel Pedals and Levers and Attachment Pedal.

Key Control/Indicator Function

1 Left Travel Pedal This pedal controls the operation of the left-side track. This pedal performs the same functions as the left travel lever but provides less control than the lever. Push on the top of the pedal to operate the left-side track in the forward direction. Push on the bottom of the pedal to operate the left-side track in the rearward direction.

2 Left Travel Lever This lever controls the operation of the left-side track. This lever performs the same functions as the left travel pedal but provides more control than the pedal. Push the lever forward to operate the left-side track in the forward direction. Pull the lever rearward to operate the left-side track in the rearward direction.

3 Right Travel Lever This lever controls the operation of the right-side track. This lever performs the same functions as the right travel pedal but provides more control than the pedal. Push the lever forward to operate the right-side track in the forward direction. Pull the lever rearward to operate the right-side track in the rearward direction.

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Table 10. Travel Pedals and Levers and Attachment Pedal - Continued.

4 Right Travel Pedal This pedal controls the operation of the right-side track. This pedal performs the same functions as the right travel lever but provides less control than the lever. Push on the top of the pedal to operate the right-side track in the forward direction. Push on the bottom of the pedal to operate the right-side track in the rearward direction.

5 Attachment Pedal This pedal is used to open and close the hydraulic thumb. When a hydraulically-controlled attachment is connected to the arm, this pedal is used to operate the attachment.

6 Attachment Pedal Lock

This lock is used to lock the attachment pedal in the neutral position to disable the hydraulic thumb or any attachment that is connected to the arm.

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Table 11. Right Pilot Control Lever.

HYEX05761

321 4

Figure 11. Right Pilot Control Lever.

Key Control/Indicator Function

1 Auxiliary Function Left Button

This is a push button. Press this button to close the Crush-All lid. The Crush- All is an attachment and may not be connected to the arm.

2 Auxiliary Function Right Button

This is a push button. Press this button to open Crush-All lid. The Crush-All is an attachment and may not be connected to the arm.

3 Power Dig Button This is a push button. Press and hold this button for an 8-second increase in hydraulic power (power-dig). Release the button after the 8-second period or release the button when power dig is not needed. Power dig automatically activates (without use of button) when the boom is up, the arm is not in, and the hydraulic pump senses high demand.

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Table 11. Right Pilot Control Lever - Continued.

4 Right Pilot Control Lever

This is a multi-position lever that controls the boom and the bucket. When this lever is moved and then released, it returns to the neutral position automatically. Push the lever forward to lower the boom. Pull the lever rearward to raise the boom. Move the lever to the left to curl the bucket.

Move the lever to the right to dump the bucket. The power dig button, auxiliary function left button, and auxiliary function right button are located on this lever. Refer to Power Dig Button, Auxiliary Function Left Button, and Auxiliary Function Right Button in this WP for more information.

Table 12. Left Pilot Control Lever.

Figure 12. Left Pilot Control Lever

Key Control/Indicator Function

1 Horn Button This is a push button. Push this button to sound horn.

2 Left Pilot Control Lever

This is a multi-position lever that controls the arm and the machine swing function. When this lever is moved and then released, it returns to the neutral position automatically. Push the lever forward to move the arm out. Pull the lever rearward to move the arm in. Move the lever to the left to swing the machine left. Move the lever to the right to swing the machine right. The horn button is located on this lever. Refer to Horn Button in this WP for more information.

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Table 13. Seat Controls.

Figure 13. Seat Controls.

Key Control/Indicator Function

1 Backrest Adjustment Lever

Pull up lever to adjust backrest to desired position. Release lever to lock backrest in desired position.

2 Armrest Angle Adjustment

Turn dial to adjust left or right armrest to desired angle.

3 Seat Angle Lever Push down lever, while sitting in seat, to adjust seat angle. Release lever to lock seat at desired angle.

4 Seat Firmness Control

Turn knob to adjust seat suspension to the proper weight of the operator.

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Table 13. Seat Controls - Continued.

5 Seat Adjustment Handle

Pull up handle to adjust the seat forward or rearward. Release handle to lock seat at desired position.

6 Seat With Consoles Adjustment Lever

Pull up handle to adjust seat with consoles forward or rearward. Release lever to lock seat with consoles at desired position.

7 Lumbar Adjustment Squeeze ball to add air for desired lumbar firmness. Press button next to ball to release air.

Table 14. Quick Latch Control.

HYEX057642

Figure 14. Quick Latch Control.

Key Control/Indicator Function

1 Quick Latch Light Illuminates when switch is in unlatch position. Alarm will sound with this indicator.

2 Quick Latch Switch Latches and unlatches quick latch.

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Table 15. Cab Dome Light Switch.

Figure 15. Cab Dome Light Switch.

Key Control/Indicator Function

1 Cab Dome Light Switch

This is a three-position switch. Push forward and dome light illuminates if ignition switch is on. Push to center position and light will illuminate when cab door is opened. Push towards rear and dome light is turned off.

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Table 16. Hydraulic Hose Reel Controls.

HYEX05766

3 2

Figure 16. Hydraulic Hose Reel Controls.

Key Control/Indicator Function

1 Hydraulic Tool Flow Regulator

Used to regulate the flow of hydraulic fluid when using the hydraulic hose reel.

2 Hydraulic Tool Circuit Switch

Moved to the ON position when using hydraulic tools.

3 Deep Dig Control Pattern Switch

Moved to the ON position when using deep dig arm to enable the deep dig control pattern.

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Table 17. Overload Alarm.

HYEX05767

Figure 17. Overload Alarm

Key Control/Indicator Function

1 Overload Alarm Illuminates when an overload condition exists during digging or lifting operations.

END OF WORK PACKAGE

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OPERATOR INSTRUCTIONS

ADJUSTING THE OPERATOR'S SEAT

INITIAL SETUP:

Not Applicable

ADJUSTMENT

NOTE

Proper seat adjustment is achieved when operator can reach foot control pedals and travel levers easily with seat belt buckled.

1. Push down on handle (Figure 1, Item 9) to tilt seat (Figure 1, Item 4).

Figure 1. Operator's Seat Adjustments.

2. Turn knob (Figure 1, Item 10) to set operator weight.

3. Pull up on handle (Figure 1, Item 11) to slide seat (Figure 1, Item 4).

4. Pull up on lever (Figure 1, Item 12) to slide seat (Figure 1, Item 4) and controls (Figure 1, Item 3).

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ADJUSTMENT - Continued

5. Squeeze bulb (Figure 1, Item 13) to increase lumbar support.

6. Push button (Figure 1, Item 1) to decrease lumbar support.

7. Pull up on handle (Figure 1, Item 2) to unlock backrest (Figure 1, Item 5).

8. Raise or lower headrest (Figure 1, Item 6) to desired height.

9. Tilt headrest (Figure 1, Item 6) to desired angle.

NOTE

Operation of both armrests is identical.

10. Turn dial (Figure 1, Item 8) on underside of armrest (Figure 1, Item 7) to adjust angle of armrest.

END OF TASK

END OF WORK PACKAGE

TM 5-3805-302-10 0005

0005-2 02/13/2013 root(opusualwp) wpno(O04025)