Complete inspections of the forklift truck prevents faults previously and extends an usable period of the truck. Hours shown below are based on 8-hour operation per a day and 200-hour operation per a month.
·Only trained and authorized serviceman shall be permitted to service the truck.
·Inspection prior to operation, inspection of after operation, weekly servicing and monthly servicing are all could be done by the operator.
·Heli pure components and parts are requested to be used in addition to the spare parts of original engine manufacturer.
1.Inspection Prior to Operation
Inspecting the truck prior to operation should be done for safety operation and keep good condition of the truck. This is a duty in law. When there is fault, contact the sale apartment of our company.
·A small fault could cause a serious accident. Do not operate or move the truck prior to finishing repair works and inspect.
·Inspecting trucks should be made on a flat floor.
·Trucks in need of inspection to electrical system shall have the key switch turned off and the battery disconnected prior to such inspection.
·The improper dealing with the waste oil, For example pipe it to a drain or the soil or burn the waste oil, will pollute water, soil and air. It is banned by law.
a)Check of foot brake pedal
Check performance of brake and make sure that it is over 50mm from the floor plate when depressing the brake pedal fully.
Proper braking distance without a load is about 2.5m.
b)Check of brake oil
·Remove the cap of brake oil tank and check the quantity and condition of the brake oil.
c)Check of parking brake lever
Pulling the parking lever and to see:
·Suitable pulling stroke
Lever operation force(standard 17-22kg)is suitable for operator or not.
Adjustment should be done by a screw which located on the top of lever.
d)Check of play of steering wheel
Turn the steering wheel clockwise and counterclockwise lightly and check to see if there is play. Appropriate play is 50-100mm. The steering wheel can be adjusted forward and backward for a certain angle.
e)Check of power steering function
Turn the steering wheel to clockwise and
counterclockwise, check the power steering operation.
f)Check of function
Check if lifting and tilting operation are smooth.
g)Check of oil piping
Check for any oil leakage from the lift cylinders, tilt cylinders and oil piping.
h)Check of hydraulic oil
Check oil lever,using the oil level dip stick with the forks lowered on the floor. Appropriate oil quantity is within the range of H to L.
i)Check of lift chains
Lift up forks by 200-300mm above the floor, and make sure lift chains are equivalent in tension.
Check the finger bar if it does not decline either to right or left side. If the tension is different, adjust using the chain anchor bolts.
·After having adjusted, tighten up the double nuts securely.
j)Check of tyres(pneumatic tyres)
Measure the air pressure by using the tyre gauge after removing the cap. After checking air pressure, make sure air does not leak from the vale before replacing the cap.
Air pressure for forklift truck is higher than a normal car, do not raise the pressure over the appointed pressure.
Check of tyres(solid tyres)
Check the tyre and it’s side face if there is any damage or craze. Check the rim if there is any distortion or damage.
k)Check of hub nuts
Check if the hub nuts are loosen by
tightening them with a box wrench.
l)Check of charging
Measure the specific gravity of battery. When they show 1.275-1.285 at 30℃ conversion, the battery is full charged. And check the terminals which are loosen and the cable which is damaged.
m)Check of head lamps, turn signal lamps and horn
Check if lamps turn on. Check if horn sounds.
n)Check of meter
The meter will be display as shown in the figure after the key switch is on for several seconds normally.
o)Check of overhead guard and load backrest
Check if any fitting bolts or nuts are not loosen.
Check for any other abnormality.
Be sure to turn off the key switch and disconnect the battery plug while checking electric system except turning on the lamps and checking operation.
2.Inspection After Operation
When close working, remove stains on the truck and inspect the truck as following items.
(1)Deterioration or leakage at all parts.
(2)Deformed, distorted, worn or cracked members.
(3)Apply grease in accordance with condition.
(4)Lift forks to the maximum lift height of the truck several times after operation.(When the maximum lift height was not used in the day’s operation, the operation provides oil to cover at internal cylinders for preventing rust.)
(5)Verify an abnormal part which observed any defects during operation.
A small fault could cause a serious accident. Do not operate or move the truck prior to finishing repair works and inspect.
3.Weekly (50-hour) Servicing
Inspect the following servicing in addition to the inspection prior to operation.
Be sure to disconnect the battery plug when inspecting the electrical system.
(1)Check for quantity of electrolyte
·After completed the replenishment, close the vent caps securely.
·Do not replenish over the water. Flooding could make an electric shock.
(2)Check for specific gravity of electrolyte
Measure the quantity and specific gravity of all cells.
Normal:When all sell’s specific gravity are the same figure as converted figure at 30, it is normal.
Abnormal:When the specific gravity is less than 0.05 from the average figure of others, it is abnormal.
(3)Cleaning of battery
Keep dry condition by wiping off with a wet cotton cloth to protect corrosion at the connecting area of top batteries.
·Cleaning of the battery should be done before charging.
·Wear rubber gloves and boots to prevent a electrical shock.
·Handle the battery plug not to touch water.
The inside of vent caps will be stained. Clean them as following procedures.
a)Remove the vent caps.
b)Wash the inside of vent caps with a neutral cleaner.
c)Install the vent caps.
Make sure the vent caps are closed securely.
(4)Check of contactor
Put in a sand paper between the contacts and push the movable contact to close and then draw out the sand paper. Repeat this procedure.
Carry out the following service besides the weekly(50-hour) maintenance.
As a result of inspection, when adjustment or replacement should be necessary, call serviceman of our company.(Record of monthly maintenance should be kept.)
At the same time with the every three month (600-hour) servicing, repeat the sequence of monthly (200-hour) servicing. When adjustment or replacement of part should be necessary, call qualified serviceman of our company.
At the same time with the semiannually (1200-hour) servicing, repeat the sequence of every three monthly (600-hour)servicing. When adjustment or replacement of part should be necessary, call qualified serviceman of our company.
Complete inspections of the forklift truck prevents faults previously and extends an usable period of the truck, hours shown below are based on 8-hour operation per a day and 200-hour operation per a month.
Do the detailed record well after checking and keep the record for 3 years at least.
·Only trained and authorized serviceman shall be permitted to service the truck.
·Daily servicing,weekly servicing and monthly servicing are all could be done by the operator.
1、General Rules on Inspection
(1)Use genuine parts only.
(2)Use genuine or recommended oil only.
(3)Clean oil fillers and grease fittings with a brush or waste cloth before adding oil or greasing.
(4)Oil level check and addition of oil should be made with the truck parked on a level surface.
(5)Preventive maintenance services should be done in an orderly manner and due care taken not to injure yourself.
(6)If unavoidable to work under the raised forks or attachment, use a stable support to prevent the forks and inner mast from falling down.
(7)If any damage or fault is found, the matter should be reported to your supervisor and the truck should not be operated until corrected.
(1) Water discharge from sedimenter.
When sedimentor indicator lights up …
a)Stop the engine, loosen the drain plug by turning 4 to 5 turns(A)and press the priming pump(B).Continue pressing the priming pump (B)until water is entirely discharged through.
b) Fasten the drain plug and press the priming pump several times to see that there is no fuel leakage from the plug.
c) Start the engine to confirm that the indicator does not light up.
(2)When air-bleeding fuel system
a)Stop the engine and loosen the bleed plug(C) on the injection pump.
Press the priming pump until fuel coming through the bleed plug contains no bubble.
b)Fasten the bleed plug to confirm that there is no fuel leakage from the plug screw.
The fuse protects the electric system against overcurrent.Use the specific ampere rating of fuse.Check to see that the components in each circuit are operating properly.If every component in a circuit is not functioning, it is an indication that the corresponding fuse is blown out.Replace the blown fuse with a spare fuse of the same capacity.If a part of the components in the circuit does not function properly,it is suspected that a bulb has burnt out.The burnt bulb should be replaced with new one of the same capacity.
(4)Replacing or repairing tire
Prepare tools and jack necessary for replacing or repairing tires.
a) Front wheel
·Stop the truck on a level,hard surface and shut down the engine.All loads should be unloaded from the truck.
·Apply the parking brake and block the wheels.Put the jack under the truck frame.
·Jack up the truck to the extent that the tire still remains on the ground.Loosen the hub nuts.Do not remove them.
·Again jack up the truck until the tire leaves off the ground.Remove the hub nuts,and detach the wheel.
·The wheel should be reinstalled in the reverse order:The hub nuts should be tightened in the diagonal order evenly.
After reinstallation,check the tire for proper inflation pressure.
Tire inflation pressure … 700kPa.
Use the same manner as with the front wheel tire repair or replacement except for the position of the jack which goes under the counterweight.