7
9.1 General
Parts are machined to a very high degree of accurary and finish. On
certain items the degree of accuracy of fit necessitates selecting parts
to make up a matched assembly and may only be available as
matched sets.
To ensure continued reliability , servicng should only be carried out by
a skilled fitter who is experienced in working on hydraulics
components.
The following general precautions must be observed when servicing
hydraulic equipment:
•Absolute cleanliness is essential. Most hydraulic failures are caused
by the ingress of dirt.
•Before dismantling a component, clean external surfaces and drain
all fluide.
•When holding components in a vice, fit soft metal pads over the vice
jaws to prevent damage and distortion to precision surfaces and
bores.
•All parts should be laid out on a clean resilient surface.Special
attention should be paid to the identification of parts and their
dismantling sequence.
•All dismantled metal parts should be washed in a cleaning solvent
and coated with hydraulic fluid.
•The safety management of the company where the work is being
carried out must approve all solvent cleaners in use. The COSHH
regulations must be read and understood.
•It is recommended that all disturbed seals be renewed. If a seal is
reused it should be closely examined for cust, flaws or wear. A seal
that is suspect should never be reused.
•All internal metal parts and seals should be lightly coated with clean
hydraulic oil or a lithium based no.2 grade grease before assembly.
This assists in assembly and lessens the risk of seal damage. Use only
seals provided in component service kits, which are obtainable from
RuggedMade
engineering co.,ltd or their agents, as these will be of a
different composition and hardness to seals normally commercially
available.
9.2 Hydraulic Pipes and Hoses
When remvoing and replacing rigid pipes and flexibe hoses the
following points should be obserived:
9. MAINTENANCE, DIS
ASSEMBLY
AND REASSEMBLY
Summary of Contents for MHP13-20
Page 13: ...PARTS LIST HYDRAULIC POWER PACK MHP9 20...
Page 14: ...FUEL TANK ASSY...
Page 16: ......
Page 18: ......
Page 20: ......
Page 22: ......
Page 24: ......
Page 29: ...PARTS LIST HYDRAULIC POWER PACK MHP13 20 30...
Page 30: ......
Page 32: ......
Page 34: ......
Page 36: ......
Page 38: ......
Page 40: ......
Page 42: ......
Page 44: ......
Page 46: ......
Page 48: ...7 Market Street Rockland MA 02370 855 878 4433 855 8 RUGGED www ruggedmade com...