Clean Oil Cooler Core - Hitachi EX 3600-6 Operator's Manual

Clean Oil Cooler Core

--- every 500 hours
WARNING: Wear safety glasses or goggles when
using compressed air to clean oil cooler core.
IMPORTANT: High pressure air or water can damage
the cooler core fins. Use air pressure
[0.2 MPa (2 kgf/cm
the nozzle more than 500 mm away from
the core surface.
Clean the oil cooler core using compressed air [0.2 MPa (2
2
kgf/cm ) or less] or tap water. Upper and lower covers (2
and 3) can be removed from oil cooler frame (1). Remove
the covers to clean the cooler core thoroughly. Four oil
coolers (4) units are arranged in both series and parallel.
Clean all the cooler units.
IMPORTANT: If upper cover (2) and lower cover (3) are
incorrectly installed, the cooler per-
formance will be deteriorated. Be sure to
reinstall them in their original positions.
MAINTENANCE
2
) or less] and keep
7-68
3
M146-07-037
4
2
1
M146-07-089