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PT130

Powertrac PT130 Safety, Operation & Maintenance Manual

Foreword----------------------------------------------------------------------------------------
Breaking in Your New Machine------------------------------------------------------------
Operation---------------------------------------------------------------------------------------
General Locations and Specifications------------------------------------------------------
Instruments, Switches and Pilot Lamps----------------------------------------------------
Check before Starting-------------------------------------------------------------------------
Operation of Grader---------------------------------------------------------------------------
Operation of Work Equipment---------------------------------------------------------------
Reversing and Replacement of Cutting Edge and End Bit------------------------------
Changing Tires--------------------------------------------------------------------------------
Driving Along Road--------------------------------------------------------------------------
Towing------------------------------------------------------------------------------------------
Cold Weather Operation----------------------------------------------------------------------
Memo--------------------------------------------------------------------------------------------
Periodic Maintenance-------------------------------------------------------------------------
Maintenance Table----------------------------------------------------------------------------
Oil filler and Level Gauge Positions-------------------------------------------------------
Every 50 hours service-----------------------------------------------------------------------
Every 100 hours service----------------------------------------------------------------------
Every 250 hours service----------------------------------------------------------------------
Every 500 hours service----------------------------------------------------------------------
Every 1000 hours service---------------------------------------------------------------------
Every 2000 hours service---------------------------------------------------------------------
Every 4000 hours service---------------------------------------------------------------------
When Required---------------------------------------------------------------------------------
Trouble Shooting Guide----------------------------------------------------------------------
Service Meter----------------------------------------------------------------------------------
Machine and Engine Serial Numbers-------------------------------------------------------
Fuel, Coolant and Lubricants----------------------------------------------------------------
Safety and Operation------------------------------------------------------------------------
Safety Hints------------------------------------------------------------------------------------
Precautions for Maintenance-----------------------------------------------------------------
Handling of Battery---------------------------------------------------------------------------
Hanging Up------------------------------------------------------------------------------------
Transportation---------------------------------------------------------------------------------
Storage------------------------------------------------------------------------------------------
Powertrac PT130 Motor Grader
Safety Operation & Maintenance Manual
10- 1
FOREWORD This manual describes procedures for operation, handling, lubrication, maintenance, checking, and adjustment. It will help an operator or anyone to make the machine realizing a good performance through effective, economical and safe operation and maintenance.
Please read this manual carefully BEFORE operating the machine. Please continue studying this manual until proper operation is completely reinforced into
personal habit.
This manual describes the basic techniques. Skill is performed as the operator or anyone
get the correct knowledge and performance of the machine.
Operation, inspection and maintenance should be carefully carried out, and the safety
must be given the first priority. Safety precautions are indicated with “ ” marks and technical precautions with “★” marks in this manual. The safety information contained
in this manual is intended only to supplement safety codes, insurance requirements, local laws, rules and regulations.
Some photographs and illustration pictures are different from your machine as technical
improvement is continuously reflected on it. Revision to up-to-date manual’s content is performed in later editions.
This operation and maintenance manual may contain attachment and optional equipment
that are not available in your area. Please contact us for those items you may require.
About engine and transmission instructions in this manual, if thy are different from the
“ENGINE OPERATION INSTRUCTION” and the “TRANSMISSION OPERATION
INSTRUCTION” provided for your machine, the latest operation instructions should be
taken as the standard.
Materials and specifications are subject to change without notice.
10- 2
BREAKING IN YOUR NEW MACHINE
Each machine is carefully adjusted and tested before shipment. However, a new machine requires careful operation during the first 100 hours to break in the various parts. If a machine is subjected to unreasonably hard use at the initial operation stage, the potential of performance will prematurely deteriorate and the service life will be reduced. A new machine must be operated with care, particularly with regard to the following items: After starting, let the engine idle for 5 minutes to allow proper engine warm-up prior to
actual operation.
Avoid operation with heavy loads or at high speeds. Sudden starting or acceleration, unnecessarily abrupt braking and sharp turning should be
avoided.
If the machine is delivered without any cooling water in the radiator, flush the cooling
system with ample clean water to clean the system, then fill the radiator with cooling water.
★ When checking, adding or changing the cooling water, fuel or lubrication oil, be sure not
to let any dust or dirt get in.
★ When replacing oil filters elements (cartridges), check their interiors for dirt and dust. If
heavily collected, check for possible cause before starting operation.
★ Hours of operation are indicated by the service meter.
10- 3
1. Head Lamp
2. Blade Lift Cylinder
3. Rear Tire
4. Articulation Cylinder
5. Drawbar Side Shift Cylinder
6. Blade
7. Front Tire
Machine Model
713H
Performance
1.Travel Speed (km/h) Forward
53.4
Reverse
37.8
2. Min. Turning Radius (m)
6.6
3. Grade Ability（%）
25
4. Stability（°）
35
Operating Weight
(Kg)
12000
Engine
1. Model
DONGFENG CUMMINS 6BT5.9-C130
2. Flywheel Horsepower (kw/r/min)
97/2200
General Locations and Specifications
10- 4
1. Left Turn Signal Lamp
Green light. When the steering lever is set on the left turning position, this lamp lights up.
2. Low Oil Pressure Lamp
Red light. When the oil pressure is low,this lamp lights
up,please check, Don’t operate the grader when this lamp lights up.
3. Battery Charging Lamp
Red light. It warns drivers: When the engine is running, the charge system is not in normal or the chopper switch is not turned off after the engine stop.
★ If this lamp lights up, check the charge system (when the engine is
running), or check if the chopper switch is not turned off (when the engine stops).
4. Right Turn Signal Lamp
Green light. When the steering lever is set on the right turning position, this lamp lights up.
Instructions, Switches and Pilot Lamps
1. Meters and Pilot Lamps
10- 5
5. Stall Pressure Lamp
Red light， When the stall pressure is low,this lamp lights up,please check, Don’t operate the grader when this lamp lights up.
6. Brake Lamp
Red light。When the foot brake is used, this lamp lights up.
7. Hand Brake Pilot
Lamp
Red light. When the hand brake lamp is used, this lamp lights up.
★ Don’t operate the grader when this lamp lights up.
8. Fuel Level Gauge
Indicate the fuel level。
9. Engine Cooling Water
Temperature Gauge
This gauge indicates the cooling water temperature of engine. During operating, the needlepoints to the green range, it indicates the water temperature is normal. When the needle points at the red range, stop the machine and run the engine with no load at midrange speed until the needle returns to the green range.
★ If the needlepoints in the red range again and again, the fan vane should be
checked up.
10. Service Meter
This meter shows the total working hours of the engine. The service meter advances once the engine has run even if the grader doesn’t travel.
11. Oil Temperature Gauge
for Torque Converter and Transmission
This gauge indicates the oil temperature of the torque converter and the transmission system. In working, when the needle points at the green range, it indicates the oil temperature is normal. When the needle points at the red range, stop the operation and run the engine with no load at midrange speed until the needle returns to the green range.
12. Engine Oil Pressure
Gauge
This gauge shows the oil pressure of the engine.
While the grader is working, the pointer in the green zone means that the pressure is normal, if in the red zone and the engine oil pressure gauge lights up, you need to stop and check it.
2. Switches and Levers
10- 6
a. Starting switch
This switch is used to start or stop the engine. OFF: At this position, the key can be inserted or removed. When the switch is turned to this position, the electrical circuits are cut off. On: When the switch is turned to this position by clockwise, the charging circuit and the lamp circuit are electrified. START: The starting motor is started revolution by turning the switch clockwise further for one step, and also the engine is started. Releasing the key will automatically return the key to the position ON. So, you should release the key at once after the engine is started.
★ Never leave the starting switch key in “OFF” position while the engine is
running.
★ The starting switch does not control the cab electrical circuits (such as fan,
dome lamp, wipers, etc.)
10- 7
b. Head Light Switch
When this switch is pressed at low position, the headlamps light up as close beam. When this switch is pressed at high position, the headlamps light up as far beam.
c. Rear Light Switch
When this switch is pressed at low position, the rear lamps light up as close beam. When this switch is pressed at high position, the rear lamps light up as far beam.
d. Working Lamp Switch
When the switch is pressed at the ON position, the front and rear working lamps light up.
e. Wiper Switch
When the switch is pressed at the ON position, the wiper will operate. When the switch is pressed at the OFF position, the wiper will stop working and restore.
f. Instrument Lamp Switch
When the switch is pressed, all instrument lamps, the front and rear side marker lamps light up.
g．Double Jump Switch
When the grader fault and stop to check it，press the switch to the open position,left and right steering lamps shine at the same time。
h. Fan Switch
When the switch is pressed at the ON position, the fan will run. i. Transmission Lever
This lever controls the transmission with the forward/reverse gears or the six speeds for forward and the three speeds for reverse.
j. Horn Switch
When the button in the center of the steering wheel is pressed, the horn will sound.
k. Turn signal Lamp Level
This lever operates the turn signal lamps.
①The joystick forward：Right turn。 ②The joystick back：Left turn。
Control Lever and Pedals:
10- 8
1. Work equipment control lever:
These levers operate the work equipment.
1. Left blade lift lever
2. Ripper control lever（OPTIONS）
3. Blade side shift lever
4. Power tilt control lever
5. Blade rotation control lever These levers operate the work equipment.
1. Draw bar side shift lever
2. Articulation control lever
3. Right blade lift lever
4. Front wheel leaning lever
5. Scarifier lift lever（OPTIONS）
2. Steering Post Tilt Lever
Turn the ratchet wheel, and the steering post can be tilted. (the most lean 25°) Turn the pin of the handle, and achieve replacement.
10- 9
3. Fuel Control Lever
This lever adjusts the engine speed and output.
① Engine stop position: Push the lever fully. ② Low idling position: Pull the lever from engine stop position ① until you
feel the operation force falls off.
③ High idling position: Pull the lever from low idling position ② fully.
★ Use the fuel control lever only during actual work. When running the
machine along a road, use the accelerator pedal.
4. Gear Shift Lever
This lever is used to change the transmission gear. Simply moving this lever to desired speed position could perform 6-speed forward and 3-speed reverse transmission. When the lever is left placed in any position other than neutral, the engine is prevented from starting. When the lever is moved to a reverse position, the back up buzzer sound.
5. Accelerator Pedal
This pedal controls the engine speed and output. The engine speed can freely controlled between low idling and full speed. If the pedal is raised from low idling position, the engine will stop.
6.Brake Pedal
The brake is applied on the four rear wheels when this pedal is depressed. ▲ Do not put your foot on this pedal unnecessarily.
10- 10
7.Pedal for Bank Lock-pin Control
This pedal is used for controlling the blade to the bank cut position and shoulder reach position.
8.Parking Brake Lever
The brake is applied to the output shaft of the transmission by pulling this lever to the limit. ▲ When parking or leaving the machine, be sure to apply the parking
brake.
Dust Indicator
This device indicates clogging of the air cleaner element. When red position ② appears in the transparent part of this indicator①, the element is clogged. Immediately clean the element. After cleaning, push the indicator button ③ to return the red piston to the original position.
Articulate Lock Pin
This pin is used to lock the front and rear frame to prevent the machine from bending when the machine is serviced or transported.
▲ Always use this lock pin when servicing or transporting. ▲ Operating the articulation system when traveling, always
remove the lock pin.
10- 11
Operator’s Seat
According to the instructions of the seat adjustment
handle,adjust the seat forward and backward, up and down to the
appropriate position 。
Fuse Box
The fuses protect the electric devices and wiring from burning out. If any fuse is rusted or coated with white powder, replace it. Loosen the bolt ① and remove the cover ②.
★ Replace a fuse with another of the same capacity. ▲ Before replacing a fuse, be sure to cut off the chopper switch.
Fuse Arrangement and Circuit
No.
Terminal
Fuse
Capacity
Circuit
①
80
30A
Air-condition
②
20
20A
Horn, turn lamp
③ 8 20A
Starting, Instrument
④
63
20A
Cab ⑤ 15
20A
Head lamp and back lamp
⑥
60
20A
Reverse, brake
⑦ 7 20A
Gauge lamp、Gear selection
⑧ 20A
Spare
10- 12
c. Check and Refill Coolant
Remove radiator cap (1) at the top rear of the machine and check that the cooling water reaches the area marked by shaded lines. Add water if necessary. ★ If the volume of coolant added is more than usual, check for possible water leakage. ▲ Do not remove the cap while cooling water is
hot. Hot water may spout out. When removing radiator cap, lift the lever to relieve pressure.
1. Use dipstick (G) to check the oil level.
2. The oil level should be between mark L and H. If necessary, add oil at oil filler (F). ★ The type of lubricant used depends on the ambient temperature. Select according to the table “FUEL, COOLANT AND LUBRICANTS”. ★ When checking the oil level, park the machine on a flat surface, stop the engine and wait for 15 minutes before checking.
Check before Starting
This check before starting shall never be neglected as troubles are prevented by the check. a. Walk around the machine body and check whether is any trace of oil or water. In particular, the joint of
high-pressure hose and hydraulic cylinder should be paid special attention. In case leakage is found, inspect the leaking location and stop the leakage. When leakage is not stopped, you are begged to request repair to POWERTRAC distributor.
b. Inspect the tightening of bolts and nuts on every section. When loosed ones are found, apply increased
tightening. In particular, attachment positions of air cleaner and muffler should be paid special attention.
d. Check Oil Level in Engine Oil Pan
10- 13
e. Check and Refill Fuel Tank
1. Check the level of the fuel.
2. Top up the tank through the filler (F) after the day’s work is over.
★ A clogged cap breather hold may stop the fuel flow to the engine. Check it from time to time and clean.
★ Fuel Capacity: 270 L. ★ When adding fuel, never let the fuel overflow.
This may cause a fire.
Use the rubber hose (1) with right length to hitch up the connector (2), then loosen the drain valve (3) and drain sediment and water accumulated at the bottom, together with fuel.
When air cleaner element is clogged, the red piston of dust indicator (1) reaches service level and gets locked. In such
case, clean element referring to the section “WHEN
REQUIRED”. After cleaning element, push button to
return red piston.
f. Drain Water and Sediment in the Fuel Tank
g. Check Dust Indicator
10- 14
When checking steering wheel play, start engine and raise front wheels off ground. The standard steering wheel play is 10～12 mm. Please contact with POWERTRAC Company if the play is over the standard or the rotation of the steering wheel is unusual.
The lever travel is found normal if the brake is normally applied when the lever grip is pulled until two or three ratchet clicks are felt. If six or more clicks are counted before the parking brake comes into effect, refer to the Every 250 Hours Service for inspection and adjustment procedures.
Standard Pressure:
(17.5 – 25 – 12PR L-3) Front wheel 3.0 kg/cm2 Rear wheel 3.0 kg/cm2
h. Check and Adjust Steering Wheel
i. Check and Adjust Braking Ability
The braking ability is enough if the braking distance is 13 meters or below at the initial speed of 30 km/h. ★ For insufficient braking ability, refer to Every 250 Hours Service (Wheel Brake).
j. Check Parking Brake for Normal Lever Travel
★ If the machine is started in travel with the parking brake lever left in pulled position, brake lining will be burnt and braking effect will be greatly deteriorated. ★ If a brake lining is once burnt, normal braking effect will not recover unless very thin, burnt layer on the lining surface is polished with sandpaper.
k. Check and Adjust Tire Pressure
Make sure the tire and rim is free from wear and damage, and that hub nuts are not loose.
10- 15
l. Check lamps for switching, dirt and damage. m. Check rear view mirror for positioning, dirt and damage. n. Check horn. o. Is the color of exhaust gas normal? p. Do the instruments function normally? q. Have any defects in which were found during the previous day’s operation been
corrected?
r. Check the door lock for normal function. s. Check the windshield wiper for normal function. t. Check electrical wiring
Check for damage of the fuse and any sign of disconnection or short circuits in the electric wiring. Check also for loose terminals and tighten any loose parts. Check the following points carefully:
Battery Starting motor Alternator
▲ If the fuse is damaged or there is any sign of short circuit in the electric wiring, always
investigate the cause and correct it. ★ Please contact your POWERTRAC distributor for investigation and correction of the cause.
10- 16
▲ If the control lever is touched by accident, the work
equipment may move suddenly. When leaving the
operator’s compartment, always set the lock lever
securely to the LOCK position.
▲ Before starting the engine, use a damp cloth to wipe
off the dust accumulated on the top surface of the battery.
1. Before starting the engine, check the position of all
levers. ★ Carry out an initial inspection. (For details of the inspection, please see Check Before Starting.)
2. Is parking brake lever (1) in the LOCK position?
3. Is gearshift lever (2) in the NEUTRAL position and
locked? ★ Engine will not start unless gearshift lever is in NEUTRAL.
Before starting the engine
Operation of Grader
4. Is work equipment control lever at the neutral (HOLD) position?
10- 17
To start the engine:
1. Put the chopper switch to ON position.
2. Put fuel control lever in LOW IDLING position.
3. To start the engine, put the key to START position and turn over the starting motor.
4. As soon as the engine starts, release the starting switch key to allow it to return
automatically to ON position.
★ Do not leave the key in START position for more than 20 seconds. ★ If engine will not start, repeat the starting procedure after about 2 minutes. ★ To start engine in cold weather, refer to Cold Weather Operation.
Special Starting: When starting after running out of fuel, fill with fuel, then fill the fuel filter cartridge with clean fuel and bleed the air from the fuel system before starting. Refer to Fuel Filter in Every 500 Hours Service
10- 18
1. Pull fuel control lever (1) and run the
engine at medium speed for about 5
minutes with no load.
2. Run engine with light load until engine
water temperature gauge indicator move
into green range.
3. After warm-up run, check all gauges and
wiring lamps for proper operation.
4. Check for normal coloration of exhaust,
any abnormal sound or vibration.
Check After Starting:
After starting the engine, do not operate the machine immediately. First carry out the following operations and checks.
★ Don’t run the engine at low idling or high idling for more than 20 minutes. If it’s necessary to run the engine at idling, apply a load from time to time to raise the engine speed to a midrange speed.
10- 19
1. Set the gearshift lever to 1st speed. ★ When starting the machine, check that the parking brake pilot lamp goes out. ★ Set the gear shift lever to 1st speed first, then set it to higher speed by degrees.
3. Depress the accelerator pedal and the machine will start.
1. Acceleration
Partially release the accelerator pedal and shift gearshift lever to the next stepped up position.
2. Deceleration
Release the accelerator pedal to reduce the traveling speed and shift the gearshift lever to the next stepped-down position. ★ When shifting gear, always shift one speed at a time.
To Move the Machine off
1. Free parking brake lever and check that parking brake pilot lamp goes off.
Changing Gear Speed
10- 20
1. Depress the brake pedal to reduce the travel
speed and to stop the machine.
2. Set the gearshift lever to the desired position,
then depress the accelerator pedal slowly and
release the brake pedal to start the machine. ★ The engine running speed should be reduced
when shifting.
The grader turns to the desired side by turning the steering wheel (1) to that side. ★Leaning to the turning side will minimize the turning radius. In case the grader turns while reversing, leaning to the opposite of the turning side will minimize the turning radius.
1. Release accelerator pedal.
2. Depress brake pedal to stop the machine.
3. Set gearshift lever to neutral position, and
then pull the parking brake lever to apply
the parking brake.
Forward/Reverse Shifting Always stop the machine when switching between FORWARD and REVERSE.
Turning
★In case the leaning was used for turning, return the steering wheel after the leaning was returned to the desired position.
TO STOP THE MACHIMNE
10- 21
CAUTIONS FOR OPERATING
·Drive the machine straight during uphill or downhill traveling. Specially, turning the machine on the gravelly or clayey slant will cause the machine to slip easily.
·If the engine stops on the slant, depress the brake pedal immediately with full force, and at the same time, pull the parking brake lever to stop the machine. Then place the gearshift lever in N (neutral) and start the engine again. ▲ If the engine stops, the brake booster will not work, so the pedal will become heavier and
the braking effect will drop even if the brake is depressed with the same force.
·When tires get stuck while working in swamp or mud, travel with repeated articulation to simplify getting out of the poor ground.
·This machine has two brake control systems. If one brakes down, the other is still effective. However because braking capacity is reduced, drive slowly when traveling.
·Operating the articulation system when traveling at high speed may cause the machine to overturn. Always perform this operation at a speed below 10 km/h. (with articulated)
WHEN TRAVELING DOWNHILL
When traveling downhill, use the same speed range as when traveling uphill, and make full
use of the engine to brake the machine.
If travel speed is still too fast, use the foot brake.
▲ Never shift gear or place the transmission in neutral when traveling on a slope. It is
dangerous to do this, as the engine cannot be used to brake the machine. Always place the transmission in the appropriate speed range before starting to travel downhill.
▲ To prevent overrun, always shift down one gear at time. Allowing the engine to overrun
may cause damage to the engine or transmission.
10- 22
▲Stop the machine on hard and even ground to prevent it from falling down or slipping. ▲ When the machine is to be left stopped for a while, leave the
engine in low idling or stop the engine. Apply the gearshift lever lock and the parking brake.
▲ Emergency brake ▲ If an emergency stop has been made when the machine is
traveling, use the parking brake together with the wheel brake. When the emergency brake has been used, check the parking brake lining, and then replace the lining.
TO STOP THE ENGINE
1． Idle the engine at low speed for about 5 minutes to cool it.
2． Set the fuel control lever to the STOP position to stop the
engine.
★ It is also possible to release the accelerator pedal to
STOP position and stop the engine.
3． Return the staring switch to the OFF position, and withdraw
the key. ★Do not attempt to stop a hot engine immediately unless it is necessary. Such unreasonable operation will case remarkable shortage of life of the various engine parts. ★Specially when stopping an overheated engine, be sure to cool the engine gradually by idling it at a middle idling speed.
4. Set the chopper switch on OFF position.
10- 23
When operating the work equipment control lever, sufficient attention is required for the movement of the work equipment and its movement range must be limited, as the work equipment or the hydraulic cylinder possibly hit against parts, damaging them.
OPERATION OF WORK EQUIPMENT
OPERATION METHOD OF THE WORK EQUIPMENT CONTROL LEVER
There are provided eight work equipment control levers, which are operated as are indicated in the following figures.
Left-side Control Lever
Blade lifting Blade side shifting Power tilt Blade rotation
Right-side Control Lever
Drawbar side Articulation Leaning Scarifier Blade lifting shifting (选购)
CAUTIONS IN OPERATION OF WORK EQUIPMENT
When the work equipment is operated, special attention should be given to contracts at the following parts. Front wheel and blade Blade and step
10- 24
Position (1) Angle of blade and body centerline is called the blade propulsion angle. In the normal scraping work, set the angle at 60°, more or less. Set at a lesser angle when the scraping resistance is great, or when the soil is hard, or when the soil in front of the blade is difficult to carry or throw to the side.
Rear wheel and blade Blade and frame
ADJUSTMENT IN SHIFTING OF WORK ATTACHMENT
It is essential to shift the work attachment to an optimum position for each work to allow high job efficiency.
BLADE PROJECTION
The degree of projection is controllable by the control lever during operation. If further projection is needed, stop the grader for a while and change the installing position of the blade horizontal shifting cylinder piston rod, as follows.
·Projection to left
PROPULSION ANGLE OF BLADE
ADJUSTMENT OF BLADE CUTTING ANGLE
In hard soil cutting, it is advisable to lean the blade forward. As the soil becomes softer, lean the blade more backward. This operation will improve job efficiency. It is essential to adjust the cutting angle of blade, depending on the soil condition.
STANDARD BLADE CUTTING ANGLE (32°)
10- 25
ADJUSTMENT
Standard cutting angle position can get by operating power tilt control lever.
1. Turn the blade so as not to touch the
grader body and set the blade in the same
direction to the body.
2. Then，Operate power tilt control lever(1) .
A shear pin (1) is provided on the CIRCLE to prevent the blade from unexpected failure, because of abnormal impact load placed on the blade edge during operation. If the shear pin is broken during operation, remove bolt (2) and lock plate and pull out the shear pin to replace by new one.
SAFFLY DEVICE OF BLADE
During the operation of scraping, when the rotation is required, if encounter resistance，don’t force the rotation, please bring the soil scraping plate and rotary, after the angle is adjusted, then re-process the operation of scroping.
10- 26
1) Fully protrude the blade and draw bar
to the right so that blade angle shown in the figure can be obtained.
2) Depress lifter lock pin pedal (1) on
operator´ s compartment to remove
pin(2). ★If the blade cannot be removed because of interference with lifter (3), operate the blade lift cylinders as necessary.
3) Rotate lifter (3) by protruding the
right-hard blade lift cylinder piston
rod and retracting the left-hard blade
lift cylinder piston rod. When top
hole (A) in lifter approaches pin(2),
release lifter lock pin pedal(1) and
slowly rotate the lifter until pin(2)
enters hole(A).
4) Retract the right-hard lift cylinder
and protrude the left-hard cylinder.
Repeat this several times so that
circle is rotated with the blade raised
on the right-hard side, and desired
bank-cut posture can be attained.
1) Rotate lifter (1) in a similar manner to the
bank cutting posture, and lock it using bank control lock pin (2).
2) Rotate the circle to the desired position. ★ Put the machine in the left hand side shoulder reach posture using the same procedure as the above.
BANK-CUTTING POSTURE (RIGHT SIDE)
★When bringing the blade into bank-cut posture, be careful not to clash the blade against various portions of the machine. ★When bringing the blade into bank-cut posture on the left-side of the machine, change every “left-hand” and “right-hand” in the above mentioned description with each other. ★Cutting edge of the blade may brake pavement if the blade is brought into bank-cut posture on the roadway. Cover the pavement with iron plate at the portion with the blade cutting edge may come into collision. ★Relocating the blade side-shift cylinder piston rod mounting position to the right (when right-hand bank cutting is made) or to the left (when left-hand bank cutting is made) will improve band cutting efficiency.(See side –shifting of the Blade) ▲ Do not attempt to depress the bank control lock pin removing pedal unless the blade is
rested on the ground. If the pin is removed with the blade raised off the ground, dangerous falling of the blade with rotation of the circle may result.
SHOULDER REACH POSTURE (RIGHT SIDE)
10- 27
1．Take off lock line (1).
2．Set the lock line to the bracket (2) in the rear.
★ Do not articulate the machine with propulsion angle of the blade. Otherwise, the blade may bend the step. ★When turning with the machine articulated, pay particular attention to the clearance between the blade end and the rear wheel.
Remove bolt (1) and select a bolt hole adequate to the cutting angle. The cutting angle is adjustable from 58ºto 68º (standard)
★When increasing the size of the shoulder reach, change the mounting position of the piston rod of the blade horizontal feed cylinder. (Refer to the section on blade thrust) ★The banking performance is improved, if the mounting position for the piston rod of the blade horizontal feed cylinder is changed as follows:
·When banking to right, to a position where the blade is thrust to right.
·When banking to left, to a position where the blade is thrust to left.
ARTICULATED OPERATIONS
When performing operations with the machine articulated, remove the lock line on the left side of the machine. The machine can be articulated 26º to both right and left, giving a minimum turning radius of
6.6 m.
▲For normal traveling operations, do not remove the lock link.
ADJUSTMENT OF SCARIFIER a. ADJUSTMENT OF CUTTING ANGLE
As the soil becomes harder, a wider cutting angle increases job efficiency.
Adjustment
10- 28
Remove the cotter pin, pull wedge (1) and change the notch of tooth.
When the machine body is raised by using the blade as a jack, while the scarifier is lifted to the top position, the draw bar will come into collision with the scarifier. This will cause damage to the draw bar.
When turning the blade, with it several cm off the ground, the blade may touch the scarifier. This may damage the upper part of the blade.
b. ADJUSTMENT OF CUTTING DEPTH
As the cutting depth is adjustable from tooth, adjust the tooth to job property.
Adjustment
PRECAUTIONS FOR SCARIFIER OPERATION
10- 29
1. Lift the blade to a suitable height and put a block underneath the blade rail to prevent its falling. ▲Do not raise the blade unnecessarily high. Be sure not to put your body underneath the blade when blocking it.
2. Clean the mounting face after detaching the cutting edge and the end bit.
3. Mount the cutting edge after inverting it, or replacing it with a new one.
4. Mount the end bits after inverting and switching right for left, or replacing with new ones.
REVERSING AND REPLACEMENT OF CUTTING EDGE AND END BIT
Be sure to replace cutting edges and side edges before they wear down to a width of less than 10 mm from blade base. When wear is extended to the mounting faces, their repair must be done prior to replacing.
TURNING AND REPLACTING
★Tightening torque for the mounting nuts :265±35N.m ★Tighten the nuts again after several hours' operation. ★If both ends of the cutting edge and side edges are worn out, replace them with new ones.
10- 30
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