Terex tc37 - Page 80

80
Operating Manual Crawler Excavator TC37
Care and Maintenance7
Cartridge maintenance intervals
The air filter main cartridge must be replaced if, during
operation, the filter maintenance indicator lamp
(50/21) in the instrument panel lights up.
Replace the air filter safety cartridge:
– after the third maintenance of the main cartridge
– after 2 years of operation at the latest
– if the service indicator switches on after the main
cartridge has just been serviced
– if the main cartridge is damaged
– if the safety cartridge is damaged.
Changing the main cartridge
• Open the tension brackets (51/5) and remove the
cover (51/1) along with the dust ejection valve.
• Withdraw the dirty air filter cartridge (51/2) by
carefully turning and tilting and dispose of it.
• Note down the date of maintenance on the safety
cartridge.
• Clean the filter housing (51/4) with a damp cloth,
especially the seal area for the air filter cartridge.
• Check whether the new air filter cartridge is
damaged.
• Mount the air filter cartridge into the filter housing
by slightly turning.
• Re-mount the cover along with the dust ejection
valve to the bottom and re-fasten with tension
brackets (51/5).
Fig. 50 Maintenance switch indicator lamps
0
4/4
h.
R
HR3.7-04-54
21
Attention
A brief delay in maintenance does not result
in lower filter efficiency.
Fig. 51 Changing air filter cartridges
HR1253
5
1
2
3
4
Machine damage
due to dust being drawn into the engine.
• Do not install damaged air filter cartridges.