86
Operating Manual Crawler Excavator TC37
Care and Maintenance
7
7.8.10 Hydraulic oil return filter
Changing the filter insert
• Switch off the engine.
• Remove the cover (58/1) of the return filter (57/2)
using an auxiliary tool and unscrew.
• Check the condition and seal (58/2) of the cover
• Pull out the filter element (58/3) and dispose of
according to regulations.
• Clean the filter bowl if necessary.
• Check O-rings and replace any damaged part.
• Check the condition of the clogging indicating
sensor.
• Insert a new filter element.
• Apply a light coat of grease (58/2) to the cover and
tighten (58/1) the cover by hand.
• Check the tightness of the filter.
7.8.11 Breather
• Remove the breather (57/1), replace it by a new
filter and tighten so that it is hand-tight.
Fig. 57
Hydraulic oil tank
1
2
Attention
• After a larger repair job, renew the filter
insert following the test run.
• Damaged hydraulic attachments may
shorten the operating life of the return filter.
Attention
Always place a receptacle for the collection of
waste oil under the working area when
draining oil or removing the filter insert.
Fig. 58
Return filter
2
3
4
1
Attention
The breather must also be replaced if it is
dirty, for example due to hydraulic oil vapor.
