ACS A0571050 Manual

A SERVICE OF

next previous

Pumps & Conveying System Components Chapter 6: Troubleshooting 43

Problem

Possible Cause

Possible Remedy

• Blower is dead-headed.

Check for obstruction.

• Vent valve is not operating.

Check for proper signal,

voltage, and 80 to 90 psi

(552 to 621 kPa)

compressed air.

• Worn seals in blower.

Rebuild/replace blower.

• Worn bearings in blower.

Rebuild or replace.

• Loose drive belt(s). Tighten

or replace if worn.

Follow the vacuum path from

the blower through the filter,

piping, valves and material

receivers to isolate where the

loss occurs.

Filter chamber problem. The

vacuum at the filter chamber

should be the same as the

blower generates. If the

vacuum at the filter chamber

is adequate, the problem is

down line.

Vacuum conveying rate is

declining due to a vacuum loss

in the system.

Pump package blower

problem. Use a cfm/cfh

monitoring device to ensure

that blower cfm/cfh is to the

manufacturer’s specifications.

Consult Sevice Engineer if

problem persists.

• Dirty filter. Clean or replace

filter.

• Loose clamps, gaskets or

couplers. Tighten or replace.

• Filter chamber discharge

flapper not sealing under

vacuum. Check for proper

operation; clean or repair as

needed.

• Check for faulty compressed

air blowback solenoid.

Check for voltage signal

during cleaning cycle,

proper solenoid operation,

incorrect wiring, proper

compressed air connection,

and for worn plunger in

valve.