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Fuel Truck Dispenser Failure Analysis

Fuel Truck Dispenser Failure Analysis

Mar 10, 2020

Mobile Fuel Dispenser Failure Analysis and Solutions

Symptom: mandrel at the oil spill

(1)   Failure: no compression O-ring gland; exclusion method: slightly tighten the brass nut mandrel (1)

(2)   Failure: 9 x 1.9 O-ring excessive wear; Remedy: exchange O-ring (2)

Symptom: gun with a muzzle out of port oil spill

(1) Failure: paving the main valve is debris (such as hose fittings when installing scraping, tape, etc.); exclusion method: split the nut (6) Remove the main valve (4), clear the debris.

(2) Failure: return valve paving the culvert; exclusion method: rotating the screw (13), pull out the nozzle to remove debris.

(3) failure reasons: the main valve gasket damaged; exclusion method: open the nut (6) Remove the main valve (4) Replacement seals (5)

Symptom: low-grade fuel is not self-appointed position

(1) Failure: a pipe O-ring damage; exclusion method: rotating the screw (13), pull out the nozzle, replace the O-ring (10,11)

(2) Failure: tanker pressure is too low; Remedy: increase the pressure on tanker pump

Symptom: totally self-proclaimed

(1) Failure: Long-term or placed in moist place without causing rust ball;

Remedy: open the black cover (8) Replacement of steel ball (7)

(2) Failure: Due to uninstall the tubing so that O-ring complete rupture; Remedy: Replace the O-ring (10,11)

Symptom: self-proclaimed allergies, high-grade fuel will not work

(1) Failure: tanker working too; Remedy: reduce the pressure on tanker pump

(2) Failure: barrel compensation pores blocked by debris; exclusion method: force fierce blow to debris discharge port

Symptom: to shoot, but not oil

(1) Failure: dispenser is not full of oil, the tanker hose with air; Remedy: Remove the oil gun to the first oil tanker, and then install the oil gun

(2) Failure: 9 × 1.9O-ring excessive wear; Remedy: exchange O-ring (2)

Symptom: gear slipping

Failure: wear of the top file off slip; exclusion method: file with the board file in the top piece (12) contact to be rough on the file

 

Symptom: After the handle does not reset or self-proclaimed heavy fire

(1) Failure: Push rod nut screw tight; Remedy: instincts to subside somewhat brass nuts (1) to reduce friction

(2) Failure: mandrel drying; Remedy: Push rod (3) filling oil.