Hyundai HL955 Manual page 358

(7) (7) Maintenance of the brake valve Maintenance of the brake valve
No special maintenance beyond the legal requirements is necessary.
When using high-pressure cleaners on the machine, please make sure that the water jet is not
aimed directly at the brake valve (to prevent damaging the bellows).
For safety reasons the whole of the brake valve must be replaced if parts other than those For safety reasons the whole of the brake valve must be replaced if parts other than those
listed above are damaged. listed above are damaged.
(8 (8) Repair work Repair work
When working on the braking system, always make sure that there is absolutely no pressure
in the system. Even when the engine is switched off there will be some residual pressure in
the system.
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When doing repair work, make sure your environment is very clean.
Immediately close all open ports on the components and on pipes using plugs.
(9) (9)
Replacing the complete actuating mechanism Replacing the complete actuating mechanism
Carefully clamp the unit vertically in a fixture. The actuating mechanism can be removed by taking
out the three bolts. Make sure that spring assembly (21) does not fall out. When installing the new
actuating mechanism, make sure that spring assembly (21) is fitted in the right order. Tighten the
three bolts (5).
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