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Thursday, 23 October 2014

Power Brake Trouble Diagnosis Chart

Power Brake Trouble Diagnosis Chart Points : Power Brake Trouble Diagnosis Chart
Power Brake Trouble Diagnosis Chart
Complaint
Possible Cause
Check or Correction
1.Excessive brake pedal pressure required.(a) Defective vacuum check valve.
(b) Hose collapsed.
(c) Vacuum fitting plugged.
(d) Binding pedal linkage.
(e) Air in let clogged.
(f) Faulty piston seal.
(g) Stuck piston.
(h) Faulty diaphragm.
(i) Causes listed for drum type hydraulic brakes.
(a) Free or replace.
(b) Replace
(c) Clear, replace.
(d) Free up
(e) Clear
(f) Replace
(g) Clear replace damaged parts.
(h) Replace (applies to diaphragm type only)
(i) Sauer as their remedies.
2.Brake graph.(a) Reaction or brake full mechanism damaged.
(b) Air vacuum valve slicking.
(c) Causes listed for drum type.
(a) Replace damaged parts.
(b) Free up, replace damaged parts.
(c) Hydraulic brake system.
3.Pedal goes to floor board.(a) Hydraulic plunger seal leaking.
(b) Compensating valve not closing.
(c) Causes listed for drum type hydraulic brake system.
(a) Replace
(b) Replace valve
4.Brake fails to release.(a) Pedal linkage binding.
(b) Faulty check valve action.
(c) Compensator port plugged.
(d) Hydraulic plunger seal sticking.
(e) Piston sticking.
(f) Broken return spring.
(g) Cause listed for drum type hydraulic brake.
(a) Free up
(b) Free replace damage parts.
(c) Clear port
(d) Replace seal
(e) Lubricate replace damaged parts as necessary.
(f) Replace
(g) Replace
5.Loss of brake fluid.(a) Worn or damaged seals in hydraulic section.
(b) Loose line connections.
(c) Causes listed in hydraulic drum type brake.
(a) Replace, fill and bled system.
(b) Tighten replace seals.

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