Doosan GL08K, Руководство по эксплуатации и техническому обслуживанию

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Maintenance of Major Components - 164 -
3) Measuring clearance between drive shaft and bushing
a) Measure the outside diameters of the drive shaft and driven shaft, and replace if the
measured values are less than the limit ( 16.95mm)
b) Measure the inside diameter of the pump body bushing to determine the clearance between
the bushing and shaft, and compare the measured value with the standard value to determine
whether to replace or not.

Reassembly
1) For reassembly, reverse the disassembly sequence.
5.2.3. Oil filter
Oil filter is cartridge type and rplcae the
cartridge with new one.
5.2.4. Diagnostics and troubleshooting
Standard Limit
16.95 ~ 16.968 mm 16.95
Clearance 0.075 ~ 0.127 mm
EI5OM025
Oil filter
Oil cartridge
Complaints Possible causes
Corrections
1. Oil consumption
excessive
 Poor oil  Use suggested oil

Oil seal or packing leaky

Replace
 Pistons or piston rings worn  Replace pistons and/or piston rings

Cylinder liner worn

Replace cylinder liner
 Piston rings sticking  Replace pistons and/or piston rings

Valve guide oil seals or valve
guides, or valve stem worn

Replace
2. Oil pressure too low

Poor oil

Use suggested oil
 Relief valve sticking  Replace

Restrictions in oil pump strainer

Clean strainer
 Oil pump gear worn  Replace

Oil pump feed pipe cracked

Replace
 Oil pump defective  Correct or replace

Oil pressure gauge defective

Correct or replace
 Various bearings worn  Replace
3. Oil deteriorates quickly

Restriction in oil filter

Replace filter element
 Gases leaking  Replace piston rings and cylinder liner

Poor oil

Use suggested oil