Labrie EXPERT Maintenance Manual page 311

Hydraulic System 301
Figure 5-45 Hydraulic cooler fan (optional)
Periodic maintenance is recommended for E ™ units equipped with a hydraulic cooler. The
XPERT
cooler should be cleaned a minimum of every 1,000 hours of operation.
Cleaning methods vary depending on the type of contamination (wet or dry). For dry contamination,
such as dust, compressed air may be used; if contamination is wet or caked on, the fan unit should be
removed from the cooler; then the hydraulic cooler may be treated with a liquid cleaner, flushed with
water, and dried with compressed air for drying and removal of debris.
Care should be taken when using compressed air, a high pressure water cleaner or steam cleaner. The
electric fan or the fins of the element may be damaged by high pressure water or steam. The blow
direction for air, water or steam must be opposite of the direction of normal, fan-driven airflow,
parallel to the cooling fins, to ensure effective cleaning. On vehicles used in corrosive environments
(salt), clean the cooler frequently with water to prevent corrosion which may damage the element.