Maintenance
Maintenance Safety
114 9821/6100-4 114
Accumulators
The accumulators contain hydraulic fluid and gas at high pressure. Prior to any work being carried out on
systems incorporating accumulators, the system pressure must be discharged by a JCB dealer, as the sudden
release of the hydraulic fluid or gas may cause injury.
Hot Components
Touching hot surfaces can burn skin. The engine and machine components will be hot after the unit has been
running. Allow the engine and components to cool before servicing the unit.
Soft Ground
A machine can sink into soft ground. Never work under a machine on soft ground.
Working Under the Machine
Make the machine safe before getting beneath it. Make sure that any attachments on the machine are correctly
attached. Engage the park brake, remove the ignition key, disconnect the battery. If the machine has wheels
use blocks to prevent unintentional movement.
Lifting the Machine
Under no circumstances must the engine be run with the transmission in gear and only one driving wheel jacked
clear of the ground, since the wheel on the ground will move the machine.
Chemicals
Certain seals and gaskets (e.g. crankshaft oil seal) on JCB machines contain fluoroelastomeric materials
such as Viton®, FluorelTM and Technoflon®. Fluoroelastomeric materials subjected to high temperatures can
produce highly corrosive hydrofluoric acid. This acid can severely burn. New fluoroelastomeric components
at ambient temperature require no special safety precautions. Used fluoroelastomeric components whose
temperatures have not exceeded 300°C (571.6°F) require no special safety precautions. If evidence of
decomposition (e.g. charring) is found, refer to the next paragraph for safety instructions. Do not touch
component or surrounding area. Used fluoroelastomeric components subjected to temperatures greater than
300°C (571.6°F) (e.g. engine fire) must be treated using the following safety procedure. Make sure that heavy
duty gloves and special safety glasses are worn: Thoroughly wash contaminated area with 10% calcium
hydroxide or other suitable alkali solution, if necessary use wire wool to remove burnt remains. Thoroughly
wash contaminated area with detergent and water. Contain all removed material, gloves etc. used in this
operation in sealed plastic bags and dispose of in accordance with Local Authority Regulations. Do not burn
fluoroelastiometric materials.
Hydraulic Hoses
Never re-use hydraulic hose end crimps or use reusable hose end crimps.
Personal Protective Equipment
Use the appropriate personal protective equipment before performing maintenance on the machine, otherwise
you could be injured.
Working at Height
Use appropriate access equipment such as ladders or a working platform if it is necessary to work at height
to perform maintenance tasks on the machine. If you do not use suitable access equipment there is a risk of
falling, resulting in personal injury or death.
Fluids and Lubricants
Oil
Oil is toxic. If you swallow any oil, do not induce vomiting, seek medical advice. Used engine oil contains harmful
contaminants which can cause skin cancer. Do not handle used engine oil more than necessary. Always use
barrier cream or wear gloves to prevent skin contact. Wash skin contaminated with oil thoroughly in warm soapy
water. Do not use petrol, diesel fuel or paraffin to clean your skin.
Fluid Under Pressure
Fine jets of fluid at high pressure can penetrate the skin. Keep face and hands well clear of fluid under pressure
and wear personal protective equipment. Hold a piece of cardboard close to suspected leaks and then examine
the cardboard for signs of fluid. If fluid penetrates your skin, get medical help immediately.
To Next Page
Loading...
Need help?
General
