SPX Flow SPX Flow Air Dryer HGE400 HGE400

CAUTION! Do not disassemble drain valve timer or attempt to repair electrical parts. Replace timer if defective.

Disconnect main power supply to dryer

Lock out and tag power supply in accordance with OSHA requirements. WARNING! If power supply is not disconnected before disassembly, serious personal injury and valve damage may result.

Remove hoses that connect the drain valve to the drain valve strainer

Remove screw and washer from front of the drain valve

Remove the power supply connector and gasket (with the timer assembly if attached) from the solenoid coil housing. Do not damage or lose the gasket.

Remove coil fixing nut and spring washer from top of solenoid coil housing

Lift solenoid coil housing off solenoid core in valve body

Check the operation of the automatic drain valve

See the Field Service Guide for remedies to drain valve malfunctions

See the AUTOMATIC DRAIN VALVE section for drain valve adjustment

Warning: Dismantling or working on any component of the compressed air system under pressure may cause equipment failure and serious personal injury.

Before dismantling any part of the dryer or compressed air system, completely vent the internal pressure to the atmosphere.

Inspect the condenser coils monthly.

Remove dirt or other particles with compressed air from an OSHA-approved air nozzle that limits its discharge pressure to 30 psig (2.1 kgf/cm2).

Sign off on the monthly air dryer maintenance

Inspect the ambient air filter weekly and clean it if necessary. Dirty air filters cause loss of efficiency and may result in damage to the product.

Air Filter – Clean accumulated dust and dirt from air filter weekly or as required.

A. Open ambient filter side door.

B. Remove air filter by sliding upwards.

C. Wash with soap and water and allow to dry before reinstalling. Note: Do not use solvents to clean air filter.

D. Reinstall air filter and right side door.

E. If the filter is damaged, replace it with a new filter. Contact your distributor.

CAUTION! Do not operate the dryer without the ambient air filter. Permanent condenser damage may result.

Sign off on the weekly air dryer maintenance