CHAPTER 3 – OPERATION
OPERATING CONTROLS
WARNING
• Read and understand this entire manual. Follow warnings and instructions for operation and maintenance.
Failure to follow instructions can result in injury or death.
• Read and understand all safety decals before operating the machine. DO NOT operate the machine unless all factoryinstalled guards and shields are in place.
• Be sure you are familiar with all safety devices and controls before operating the machine.
• Know how to stop the machine before starting.
• Use only with approved accessories or referral attachments. The manufacturer cannot be responsible for safety if the unit is used with non-approved attachments.
• Check for correct function after adjustments or maintenance.
Guards and Shields
Whenever possible, guards and shields are used to protect potentially hazardous areas on the machine. In many places, decals are also provided to warn of potential hazards and/or to display special operating
procedures; see “Safety and Information Decals” on page 2-10.
The left operator’s console (A, Figure 3-1) should be
raised to enter and exit the cab. In the raised position, the console locks out all hydraulic functions of the machine.
A
Machine Orientation
All references to “right” and “left” are determined from the operator's position facing forward.
Figure 3-1 – Operator’s Left Console in Lockout Position
The height of the left operator’s console can be
adjusted using stop bolt (B, Figure 3-2).
Printed in U.S.A.
3-1
B
Figure 3-2 – Left Console Height Adjustment
918254/BP0112
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Figure 3-3 – Equipment and Controls
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Printed in U.S.A.
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Item Description
1
For more info, see page
SAE/ISO changeover valve (behind operator’s seat) ............................................................................................................................... 3-8
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Seat Belt (latch)
Throttle Lever ........................................................................................................................................................................................... 3-7
Armrest (left) .......................................................................................................................................................................................... 3-11
Control Lever Base (left)
Seat Horizontal Adjustment Lever .......................................................................................................................................................... 3-11
Joystick (left) ............................................................................................................................................................................................ 3-9
Hammer Pedal for Boom Swivelling ....................................................................................................................................................... 3-28
Drive Lever (left) ....................................................................................................................................................................................... 3-8
Drive Pedal (left) ...................................................................................................................................................................................... 3-8
Drive Pedal (right) .................................................................................................................................................................................... 3-8
Drive Lever (right) .................................................................................................................................................................................... 3-8
Air Temperature Control Knob ............................................................................................................................................................... 3-13
Auxiliary Hydraulics Pedal....................................................................................................................................................................... 3-28
Instrument Cluster .................................................................................................................................................................................... 3-4
Engine Preheating/Ignition Switch ........................................................................................................................................................... 3-7
Joystick (right) ................................................................................................................................................................................. 3-9, 3-28
Control Lever Base (right)
Dozer Blade Lever ................................................................................................................................................................................... 3-7
Switch Panel ............................................................................................................................................................................................ 3-4
Seat Backrest Adjustment ...................................................................................................................................................................... 3-11
Switch Panel ............................................................................................................................................................................................. 3-4
Radio (option)
Cigarette Lighter
Seat Suspension Adjustment ................................................................................................................................................................. 3-11
Cab Hold-down Hardware
Storage Net
Cup Holders
Windshield Wiper Motor (cab model only; inside front windshield)
Armrest (right)
Cab Light and Radio Speakers (cab model only; above rear window)
29 30 31
Printed in U.S.A.
3-3 918254/BP0112
Console Switches Panel
Switches/indicators on control console
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39 Instrument
Cluster
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Cab Switches Panel
Switches/indicators on cab wall
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Figure 3-4 – Instrument Panel, Switches and Indicators
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918254/BP0112 3-4 Printed in U.S.A.
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Item Description
32 Fuel level gauge – The fuel gauge displays the amount of fuel in the tank.
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Unassigned
Unassigned
Cold-start indicator (yellow) – Cold start indicator light comes on when the ignition key is in the glow plug activation position; see “Ignition
Key Switch” on page 3-7. Indicator will go out when the engine pre-heater has heated the engine sufficiently to start.
Hydraulic oil filter indicator (red) – Hydraulic oil filter indicator light comes on when hydraulic oil filter requires servicing or while the hydraulic oil is cold.
Unassigned
Battery charge indicator (red) – Battery charge indicator light comes on when the ignition is turned on and goes off when the engine starts.
If the indicator light comes on while the engine is running, the battery is not charging, indicating a faulty charging circuit in the alternator or problems with the V-belt. NOTE: a faulty V-belt affects cooling pump operation, which can lead to overheating and more serious engine problems. Shut off the engine IMMEDIATELY and determine/fix the cause if this indicator comes on when the engine is running.
Unassigned
Engine oil pressure indicator (red) – Engine oil pressure light comes on when the ignition is turned on and goes off as soon as the engine is running. During normal operation, this indicator should remain off. The indicator will light if the engine oil pressure drops too low. If this occurs, shut off the engine IMMEDIATELY and determine the cause of the pressure drop.
Engine coolant temperature indicator (red) – Coolant temperature indicator light comes on if coolant temperature rises above specification. Shut off the engine and determine/fix the cause if this indicator comes on when the engine is running
Unassigned
Unassigned
Hourmeter – Indicates the total operating hours of the machine. Use the hourmeter to track maintenance in the maintenance log.
Auto2Speed switch (transport speed) – Pressing the switch will enable high travel speed.
Ventilation fan (two-speed) – Press the two-position switch to turn on the ventilation fan. Pressing switch to the first position is the low fan speed position, and the second position is the high fan speed position. If the heater control (cab model only) is in the heating position, this switch functions as the cab heater ON/OFF switch.
Unassigned
Unassigned
Unassigned
Boom light – Press switch ON to turn on the boom work light.
Windshield wiper switch (cab models only) – Pressing the two-position switch to the first position turns on the windshield wiper. Pressing and holding the switch indicator in the second position activates the washer fluid pump.
Roof work lights (option, cab only) – Press switch ON to turn on the cab roof work lights.
Rotating beacon (option, cab only) – Press switch ON to turn on the rotating beacon.
Printed in U.S.A.
3-5 918254/BP0112
Engine Compartment Components
Note: See Figure 3-4 for the corresponding numbers.
1. Windshield washer reservoir (cab only)
2. Air cleaner
3. Engine hood support arm
4. Engine coolant radiator cap
5. Radiator overflow reservoir
6. Engine coolant radiator
7. Battery
8. Engine oil fill (2 places)
9. Engine oil dipstick
10. Engine oil filter
11. Fuel filter
12. Hydraulic transfer case
13. Fuel/water separator
14. Hydraulic fluid level sight gauge
15. Fuse/relay box
16. Hydraulic oil cooler
17. Hydraulic oil pressure breather
18. Engine hood support bracket
Accessing the Engine Compartment
The engine hood must be opened to access the engine compartment. To open the hood, press in the hood latch
button (19, Figure 3-6). The hood is secured open when
its support arm (3) slides up and drops into the support bracket (18). To release the hood:
1. Push the hood up slightly to take pressure off the support arm (3).
2. With your free hand, lift the support arm and slip it into the hole above the support bracket (18).
Important: Ensure support arm (3) passes through the opening in support bracket (18). Prevent support arm
(3) from touching air intake hose (19) when closing the hood, or damage to intake hose (19) may result.
3. Close the engine hood.
The hood is properly closed and secured when the lock button makes an audible click sound. To lock or unlock the hood:
1. Insert the ignition key into the latch button (19).
2. Turn the key counter-clockwise (left) to lock hood.
3. Turn the key clockwise (right) to unlock hood.
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2 18
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Figure 3-5 – Engine Compartment Components
Lock
Figure 3-6 – Engine Hood Lock
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19
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Unlock
918254/BP0112 3-6 Printed in U.S.A.
Ignition Key Switch
Note: The engine can only be started if the both control lever consoles are pivoted down into the operation position.
With the key in the fully counter-clockwise “P” position, all power is shut off. The key can be inserted or removed when the switch is in this position.
With the key in the “0” position, power to the accessory circuit is turned on. The key can be inserted or removed when the switch is in this position.
With the key in the “I” position, power is turned on to all controls and electrical circuits. The battery charge indicator light and the oil pressure indicator light will come on.
With the key in the “II” position, the engine pre-heater indicator will come on while the pre-heater warms intake air in cold weather.
With the key turned fully clockwise “III” and held in position, the engine will crank/start. The indicator lights should go out when the engine starts. Release the key after the engine starts (the key returns to the “I” position when it is released after starting the engine).
Note: The key must be in the “I” position between attempts to start the engine to activate the pre-heat system.
Boom Swivel Control
The boom can be swiveled without moving the swing
frame. See “Swiveling the Boom” on page 3-10.
Dozer Blade Control
The dozer blade is controlled by the dozer control lever
(1) located next to the right joystick. See Figure 3-8.
• Push lever forward to lower the blade.
• Pull lever rearward to raise the blade.
Figure 3-8 – Dozer Blade Lever
1
Engine Speed Control/Throttle Lever
The engine speed is controlled by the throttle lever (2)
located behind the left joystick. See Figure 3-9.
• Push lever forward to decrease engine speed.
• Pull lever rearward to increase engine speed.
2
Figure 3-7 – Ignition Key Switch
Printed in U.S.A.
3-7
Figure 3-9 – Throttle Lever
918254/BP0112
Travel Controls
WARNING
• Levers and controls should return to neutral position when released.
• Be sure the levers and controls are in the neutral (middle) position before starting the engine.
• Operate controls gradually and smoothly. Excessive speed and quick control movements without regard for conditions and circumstances are hazardous and could cause an accident.
WARNING
Be sure that the dozer blade is “in front.”
When the operator’s cab is facing forward, the blade will be visible and travel controls will operate as expected. If the dozer blade is not visible, the operator’s cab is facing to the rear, and the travel controls will operate in reverse.
Forward Travel
Both travel control levers or pedals must be moved forward. The farther they are moved forward, the faster
the machine will travel. See Figure 3-10.
Reverse Travel
Both travel control levers or pedals must be moved rearward. The farther they are moved rearward, the
faster the machine will travel. See Figure 3-10.
Turning During Travel
Pivot (wide) turns are made by rotating only one track forward or rearward so the machine pivots on the stationary track. Spin turns are made by rotating one track forward and one track rearward. The machine
will spin around its mid-point. See Figure 3-10.
1F
1B
3F 4F
2F
2B
3B 4B
F=Forward; B=Rearward
Drive Levers
Move: For Excavator To:
1F and 2F Move Forward
1B and 2B Move Rearward
1F Wide Turn Right
1F and 2B Spin Turn Right
2F Wide Turn Left
1B and 2F Spin Turn Left
Drive Pedals
Move: For Excavator To:
3F and 4F Move Forward
3B and 4B Move Rearward
3F Wide Turn Right
3F and 4B Spin Turn Right
4F Wide Turn Left
3B and 4F Spin Turn Left
Figure 3-10 – Travel Controls
Spin Turn
Move the levers in opposite directions to spin the machine on its axis. To spin turn left, move the right control lever forward while pulling the left control lever to the rear; to spin turn right, move the left control lever forward while pulling the right control lever to
the rear. See Figure 3-10.
High-Speed Travel
Toggle switch (2, Figure 3-11) controls the two-speed travel drive. Press switch (2) to select high-speed travel. Press switch (2) again to select low-speed travel.
Press and hold switch (3) to change to high-speed travel momentarily.
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Figure 3-11 – High-Speed Switches
918254/BP0112 3-8 Printed in U.S.A.
CAUTION
The high-speed travel setting can reduce traction and will effect control when cornering.
SAE/ISO Selector Valve
The SAE/ISO selector valve is behind the operator’s seat and accessible through an opening in the rear cab
wall. See Figure 3-12.
Note: The machine has been set at the factory for SAE stan- dard operation (2).
To change selector valve setting:
1. Using the horizontal seat adjustment lever (see
Figure 3-18 on page 3-11), move the operator seat
as far forward as possible.
2. Locate the valve access cover on the rear cab wall
(1, Figure 3-12). Open the door to access the valve.
3. Loosen wing nut (4) on top of the valve.
4. Rotate the valve handle 90° to the desired position.
SAE is position (2), and ISO is position (3), shown
in Figure 3-12.
5. Tighten wing nut (4).
6. Close the valve access cover and return the operator seat to the operating position.
SAE Operating Controls
SAE boom and bucket functions are controlled by the right and left joystick control levers located on the seat consoles.
SAE Left Joystick – See Figure 3-13.
1 – Arm extend
2 – Arm retract
3 – Swing left
4 – Swing right
Figure 3-13 – SAE Left Joystick
SAE Right Joystick – See Figure 3-14.
5 – Boom lower
6 – Boom raise
7 – Curl bucket in
8 – Curl bucket out
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Figure 3-12 – SAE/ISO Selector Valve
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Figure 3-14 – SAE Right Joystick
Note: The joystick controls are pilot-operated. The farther the controls are moved from center, the faster the machine will function.
Printed in U.S.A.
3-9 918254/BP0112
ISO Operating Controls
ISO boom and bucket functions are controlled by the right and left joystick control levers located on the seat consoles.
ISO Left Joystick – See Figure 3-15.
1 – Boom lower
2 – Boom raise
3 – Swing left
4 – Swing right
Swiveling the Boom
WARNING
Working with the boom swiveled to the side reduces lifting capacity.
Overloading the bucket can cause an unstable condition and increase the possibility of tipping the machine.
The boom can be swiveled 55º to the right and 75º to the left for excavating trenches along walls, fences, etc.
See Figure 3-17.
1
Swivel Left Swivel Right
2
Figure 3-15 – ISO Left Joystick
ISO Right Joystick – See Figure 3-16.
5 – Arm extend
6 – Arm retract
7 – Curl bucket in
8 – Curl bucket out
Wall
Trench
Figure 3-17 – Boom Swivel Controls
Lift cover (1, Figure 3-17) over the hammer pedal and push down on the left or right side of the hammer pedal
(2, Figure 3-17) to swivel the boom to the left or right, respectively.
Note: Bucket controls are not affected when the boom is swiveled.
Figure 3-16 – ISO Right Joystick
Note: The joystick controls are pilot-operated. The farther the controls are moved from center, the faster the machine will function.
CAUTION
Lower cover (1) over the hammer pedal when it is not in use to prevent the boom from swiveling unintentionally .
918254/BP0112 3-10 Printed in U.S.A.
Operator’s Seat Adjustments
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3. Seat Suspension Adjustment
a. Pull the seat adjustment lever (1, Figure 3-18)
and slide the seat as far forward as possible.
Release the lever to lock the seat in place.
b. Locate the seat suspension handle (3, Figure 3-
18) on the left side of the seat. Rotate the han-
dle clockwise to stiffen suspension and counter-clockwise to loosen suspension. c. Use the seat adjustment lever (1) to return the seat to its previous location.
4. Armrest Adjustment
The armrest on either console is adjusted using
knurled-head screw (4, Figure 3-19). Loosen the
screw on the armrest you wish to adjust so the armrest bracket can move vertically. Once the desired position is reached, tighten the screw to secure the armrest.
Figure 3-18 – Seat Adjustment
1. Horizontal Seat Adjustment
The seat adjustment lever (1, Figure 3-18) moves
the seat forward and rearward. Pull up and hold the lever while moving the seat to the desired position.
Release the lever to lock the seat into place.
2. Backrest Adjustment
The backrest adjustment knob (2, Figure 3-18)
moves the seat backrest forward (incline) and rearward (recline). Rotate the knob counter-clockwise to recline the backrest and clockwise to incline the backrest.
Figure 3-19 – Armrest Adjustment
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Printed in U.S.A.
3-11 918254/BP0112
Seat Belt
4
WARNING
ALWAYS fasten the seat belt securely and properly. Never operate the machine without the seat belt fastened around the operator.
Keep the seat belt clean because dirt can impair seat belt operation. Check seat belt condition regularly and have damaged or worn belts immediately repaired by an authorized workshop.
After an accident the seat belt strap is stretched and must be replaced with a new strap installed by an authorized workshop.
Figure 3-20 Seat Belt
1
Make sure the seat belt is not twisted when it is fastened, and that it is fastened over the hips and not the stomach.
Fasten the seat belt tightly and securely. Remove hard, edged or fragile objects from your pockets or clothes that might lie between the seat belt and your body.
Fastening/Unfastening the Seat Belt
Fasten the seat belt around your hips and waist and insert tab (1, Figure 3-20) into buckle (2) until it clicks securely in place. Slack in the seat belt should automatically retract into seat belt spool (4).
Unfasten the seat belt by pressing button (3).
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918254/BP0112 3-12 Printed in U.S.A.
Ventilation (Cab Only)
Windshield
WARNING
When opening the windshield, be sure to lock both latches. When closing the windshield, keep hands on handle and away from path of window. Head injury can result if the windshield falls unexpectedly.
Opening the Windshield
The windshield can be opened to provide cab ventilation.
1. Push latches (1, Figure 3-21) down on both handles
to unlock the windshield.
Opening/Closing the Lower Front Window
The lower front window (5, Figure 3-22) can be
removed.
• To remove the lower front window, open and lock the windshield and lift the lower front window out of the window frame.
Note: A storage location for the lower front window is provided between the operator’s seat backrest and the rear cab wall.
• To replace the lower front window, open and lock the windshield and slide the lower front window into the window frame.
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2
4
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Figure 3-21 – Windshield Handles
2. Pull the windshield inward and push upward to the roof with the handles (2). Align each handle with its corresponding ceiling catch (3). Push the window (1) firmly up and confirm it has locked into the ceiling catches (3).
Closing the Windshield
1. Keep a hand on each windshield handle (2, Figure
3-21) to avoid sudden windshield movement and
possible head injury when the windshield is released from the cab ceiling catches.
2. Squeeze each latch (1) until the windshield is released. Pull the windshield down by the handles
(2) and push it forward toward the frame. Be sure each latch rests against its cab frame catch (4).
Push the window forward (1) and confirm it has locked into the frame catches (4).
Figure 3-22 – Lower Front Window
Printed in U.S.A.
3-13 918254/BP0112
Opening the Side Window
IMPORTANT
The side window must be locked into place, whether open or closed, to avoid breakage when driving and working the machine.
1. Press and hold button (5, Figure 3-23) up to release
the side window lock.
2. Slide the window to any of the six slots (6) on the track where the lock can be secured.
3. Once the lock is in one of the six slots (6), release the button (5) to secure the side window into place.
Opening, Securing and Releasing the Cab Door
The cab door can be secure in the open position for additional ventilation.
1. Press the lever next to the door lock (1, Figure 3-
24) down to open the cab door from inside the cab.
2. Open the door and swing it around until the door fastener (2) on the outer door frame engages the door latch (3) on the side of the cab frame. There will be a click sound when the door is securely latched.
3. To release the door fastener, pull knob (4) forward.
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Figure 3-23 – Side Window Lock Release
Figure 3-24 – Cab Door
918254/BP0112 3-14 Printed in U.S.A.
Cab Air Circulation/Heat Control (cab only)
Air is circulated through the grille underneath the
operator’s seat (5, Figure 3-25). Air flow is controlled
with the fan speed switch (7) located on the switch panel.
During colder months, the cab can be heated using the heater control knob (6). The knob is on the cab rightside wall near the floor. Rotate the control knob clockwise to lower the circulated air temperature, and counter-clockwise to raise the circulated air temperature.
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5
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Figure 3-25 – Cab Heater Control
Printed in U.S.A.
3-15 918254/BP0112
