Gauges, Warning Lights and Indicators
- 1. Malfunction Warning Flasher - Flashes to alert the operator to take immediate action to prevent machine damage. The flasher operates if engine oil pressure is too low, engine coolant temperature is too high or if air pressure in the hydraulic tank is too low. However, when starting from cold, since the air pressure in the hydraulic tank is low, the flasher will show until the implements have been operated or the oil warms up and thus increases tank pressure.
Engine Oil Pressure Gauge (2.) - The gauge should register in the white range at low idle engine speed, or in the green range at full load speed.
Engine Coolant Temperature Gauge (3.) - The gauge should register in the green range during operation. The red range indicates high coolant temperature.
Hydraulic Oil Temperature (4.) - The gauge should register in the green range during operation. The red range indicates high oil temperature.
Alternator (5.) - Indicates the alternator output.
Hydraulic Oil Filter Indicator (6.) - Have the filter changed if the indicator lights when the hydraulic oil is warm, and the engine is running at high idle.
Engine Air Filter Indicator (7.) - Have the air filter elements serviced if the indicator lights when the engine is running at high idle.
Hydraulic Tank Air Pressure Indicator (8.) - The indicator lights when hydraulic tank air pressure is too low. When indicator lights at HIGH IDLE, reduce engine rpm by moving governor control lever to the ECONOMY detent position. If indicator remains lit, shut off the machine and have the air line between the engine and the hydraulic tank checked, as well as the filler cap seal, the breather, and the tank cover seal.
Off-On-Start Key Switch
OFF (1.)
ON (2.) - Turn the key to ON to connect the electrical circuits.
START (3.) - Turn the key to START to start the engine. Release the key after the engine starts and it will return to the ON position.
NOTE: If the engine does not start, return the key to OFF before returning it to START.
The battery disconnect switch key must be ON, to start the engine.
Battery Disconnect Switch
Battery Disconnect Switch - Insert the key and turn the switch clockwise to activate the electrical system. Turn the switch counterclockwise to open the electrical circuit. Remove the key when parking the machine. This will prevent battery drain.
Starting Aid - If Equipped
Starting Aid-Ether - Move the switch to the right, only while cranking the engine. Used in cold weather only, to inject a metered amount of starting fluid (ether) into the intake manifold to aid in starting the engine.
Service Hour Meter
Service Hour Meter - Indicates the total service hours on the engine. Use it to determine the service intervals.
Increased Lift Capacity - If Equipped
Increased Lift - Move the switch to the right to increase hydraulic pressure. With the switch on, the hydraulic functions are slowed and more stress is put on components.
Use the control only when lifting extremely heavy loads, such as sections of concrete pipe. Turn the switch off for normal operation.
Swing Orifice Control Switch
Move the switch to the desired position to control the precision of swing movement.
OFF - Move the switch to the OFF position for positive stop, no drift operation.
For general digging, the switch is normally in the OFF position.
ON - Move the switch to the ON position for cushioned stops and when precision control is required for heavy work such as for setting pipe.
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If the machine is operating on an incline, the upper structure can drift with the swing orifice switch in the ON position. |
Switches
Monitoring System Test 1. - Used to test the malfunction warning flasher and the filter indicator lights. With the disconnect switch on, move the switch to the right. The malfunction warning flasher and filter indicator lights should light.
Lights 2. - Move the switch to the center position to turn on the front lights and the dash light. Move the switch all the way to the right to turn on the front lights, the dash light and the boomlights. Move the switch all the way to the left to turn all the lights off.
Heater 3. - Center the switch for low fan speed. Move the switch to the right for high fan speed. Move the switch to the left to turn the fan off.
Defroster 4. - Center the switch for low fan speed. Move the switch to the right for high fan speed. Move the switch to the left to turn the fan off.
Windshield Wiper 5. - Move the switch to the right to actuate the wipers. Move the switch to the left to stop the wipers.
Windshield Washer 6. - Move the switch to the right to spray window washing solvent onto the windshield. The switch goes back to OFF when released.
Horn
Horn - Push the switch down to sound the horn. Release to stop. Use the horn to signal or alert nearby persons.
Travel Alarm - If Equipped
Travel Alarm - The alarm sounds anytime either the forward or reverse travel pedal is depressed.
Press the button at the top of the steering control lever to stop the alarm when it is not required.
The travel alarm, located under the rear of the upper structure, sounds to alert nearby persons of machine movement.
When the button is depressed momentarily while traveling, the alarm will sound for 10 seconds, then it will turn off.
It will remain off until the machine is stopped and travel is resumed in either direction.
Interior Dome Light
Dome Light - Move the switch to turn the inside cab light on or off.
Circulating Fan - If Equipped
Move the switch to the uppermost position for HIGH fan speed. The middle position is OFF. Move the switch to its lowest position for LOW fan speed.
Before repositioning fan, move the switch to OFF and allow fan blades to stop.
- 1. Loosen bolt (1).
- 2. Reposition fan as desired.
- 3. Tighten bolt (1).
Lighter
Lighter - Push the lighter knob down to activate. Lighter will move up when ready to use.
Windshield
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To prevent windows from falling on the operator, be sure the latches at the top of the cab hold the windows securely. |
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- 1. To provide ventilation, the front and back windows can be opened.
NOTE: The windows can also be used for emergency exists if the door is blocked.
- 2. Unlatch the window on each side.
- 3. Lift the window until it latches at a desired opening.
- 4. For increased air flow, unlatch the upper window on each side.
- 5. Swing the windows up to the cab roof.
Be sure the latches on the roof hold the window in place.
- 6. The upper window can be opened while the lower window remains in place.
Rear Window
Unlatch the rear window and loosen lock knob to move it.
Cab Door
Open the door and swing it back until it latches in the open position.
Move the lever towards the front to release the door from the latch. The door can now be closed.
Cleaning Plastic Windows - If Equipped
The cab may be provided with plastic windows at the rear, both sides and overhead. They are shatter resistant, and reduce the need for vandalism protection.
Hairline scratches and minor abrasions can be removed, or minimized, by using a mild automotive or commercial wax. A thin, even coat of wax, polished by hand with a clean cloth, will help prevent further scratching.
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Care must be taken when cleaning these windows to prevent damage to the plastic. Never use gasoline, benzine, acetone, carbon tetrachloride, fire extinguisher fluid, anti-ice fluid, lacquer thinner, acids, alkali, or glass cleaner to clean the plastic. These materials will attack the plastic and may cause it to weaken or break. Do not use abrasive cleaners. Do not use scraper blades or other sharp instruments. Do not rub plastic with dry cloth since this builds up a static charge that attracts dust. |
Window Cleaning Methods
Aircraft Windshield Cleaner
Apply the cleaner with a soft cloth. Rub with moderate pressure until all dirt is removed. Allow the cleaner to dry. Wipe off with a clean soft cloth.
Soap and Water
Use a clean sponge or soft cloth. Wash windows with a mild soap or detergent, and plenty of lukewarm water. Rinse the windows thoroughly. Dry them with a moist chamois skin or moist cellulose sponge.
Stubborn Dirt and Grease
Wash the windows in a good grade of naptha, isopropyl alcohol or Butyl Cellosolve. Follow by washing them with soap and water.
Seat Adjustment
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Adjust the seat at the beginning of each shift or when changing operators. |
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Adjust the seat to allow full travel of the pedals when the operator is seated agains the seat back.
Push the lever to the operator's left, to allow moving the seat forward or backward.
Suspension Seat
The suspension seat has a ride adjustment lever, located at the right rear corner of the seat cushion. Adjust the ride with the operator seated.
For a Softer Ride:
- 1. Pull out on the lever handle and twist it to the left on the shaft.
- 2. Allow the handle to spring back into a catch. Then ratchet the lever to the left and right several times.
- 3. The ride is properly adjusted when the indicator is even with the seat frame upright.
For a Firmer Ride:
- 1. Pull out on the lever handle and twist it to the right on the shaft.
- 2. Allow the handle to spring back into a catch. Then ratchet the handle to the left and right several times.
- 3. The ride is properly adjusted when the indicator is even with the seat upright.
Suspension Seat with Tilt Control
The lever on this optional seat, that is used for height adjustment is also used for seat tilt. Pull the lever up then tilt the entire seat forward or to the rear as desired. Release the lever.
Seat Belt
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Always check the condition of the seat belt and mounting hardware before operating the machine. Replace the seat belt at least once every three years, regardless of appearance. A date label, to determine the age of the belt, is sewn onto each belt. |
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Inspect for worn or frayed webbing.
Check for worn or damaged buckle or anticreep slide on each half of the belt. Replace the belt, buckle or slides if they are worn or damaged.
Inspect the belt mounting hardware. Replace any damaged or worn hardware. Keep the mounting bolts tight.
If the bolt and nut that holds the two parts of the seat belt mounting hooks together are not correctly installed, the hooks can separate. This will allow the seat belt to separate from its mounting.
Inspect the hooks of each half of the belt to make certain the bolt and nut are correctly installed.
If the bolt and nut are not correctly installed, remove them. Install a new bolt and nut.
Adjust Seat Belt
Adjust both ends of the belt. The belt should be snug but comfortable.
To Lengthen the Belt
- 1. With the belt unfastened, move the anticreep slide toward the buckle.
- 2. To remove the slack in outer loop (1), rotate buckle (2) to free the lock bar. This permits the belt to move through the buckle.
- 3. Pull on the buckle until the slack is removed from the outer belt loop.
- 4. Loosen the other half of the belt in the same manner. Readjust the belt if it does not fit snugly with the buckle in the center.
To Shorten the Belt
- 1. With the belt fastened, pull on the outer loop to tighten the belt.
- 2. Move the anticreep slide toward the anchor end of the belt to take up the slack in the outer loop.
- 3. Adjust the other half of the belt in the same manner.
- 4. Readjust the belt if it does not fit snugly with the buckle in the center.