Maintenance
Hydraulic System
71 9831/3200-3 71
Hydraulic System
General
Check (Condition)
Hydraulic Hoses
WARNING Damaged hoses can cause fatal accidents. Examine the hoses regularly. Do not use the machine
if a hose or hose fixture is damaged.
WARNING Fine jets of fluid at high pressure can penetrate the skin. Keep face and hands well clear of
pressurised fluid and wear protective glasses. If fluid penetrates your skin, get medical help immediately.
Examine the hoses for:
Damaged hose ends
Worn outer covers
Ballooned outer covers
Kinked or crushed hoses
Exposed armouring in the outer covers
Displaced hose end fittings.
Worn cover sheathing or hose burst protection covering.
Replace a damaged hose before you use the machine again.
The replacement hoses must be of the same size, standard and pressure rating. If necessary, for more
information contact your JCB dealer.
Connecting the Hydraulic Hoses
1. Make the machine safe.
Refer to: Maintenance Positions (Page 58).
2. Vent the hydraulic system.
3. Check the hoses and adaptors for damage.
4. Connect the hoses:
4.1. Make sure that the hose is not twisted. Pressure applied to a twisted hose can cause the hose to fail
or the connections to loosen.
Figure 42.
4.2. Make sure that the hose does not touch hot parts. High ambient temperatures can cause the hose
to fail.
4.3. Make sure that the hose does not touch parts which can rub or cause abrasion.
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