Mack CHN
- Published
- 2007-08-14
- Model years
- 2005–2007
On certain school and transit buses, the Parker single check valve (SCV) that connects with the supply port of the Bendix SR-7 spring brake modulating valve may become excessively worn and eventually break apart. Pieces of the Parker SCV can become lodge inside the SR-7 valve, possibly causing either leakage out of the SR-7 valve or preventing air from properly exhausting from the SR-7 valve. This condition can cause a delay in the application of the parking brakes, the spring brakes not fully releasing or loss of isolation between the primary and secondary circuits. These conditions can occur without warning, leading to unintended vehicle rollaway, brake drag, or in case of loss of primary circuit, inability to modulate the spring brakes. An unattended roll away vehicle could strike a bystander or cause property damage. Correction: Dealers will replace the single check valve (SCV).
View the official source notice →Mack CHU
- Published
- 2007-08-14
- Model years
- 2008–2008
On certain school and transit buses, the Parker single check valve (SCV) that connects with the supply port of the Bendix SR-7 spring brake modulating valve may become excessively worn and eventually break apart. Pieces of the Parker SCV can become lodge inside the SR-7 valve, possibly causing either leakage out of the SR-7 valve or preventing air from properly exhausting from the SR-7 valve. This condition can cause a delay in the application of the parking brakes, the spring brakes not fully releasing or loss of isolation between the primary and secondary circuits. These conditions can occur without warning, leading to unintended vehicle rollaway, brake drag, or in case of loss of primary circuit, inability to modulate the spring brakes. An unattended roll away vehicle could strike a bystander or cause property damage. Correction: Dealers will replace the single check valve (SCV).
View the official source notice →Mack CTP
- Published
- 2007-08-14
- Model years
- 2006–2006
On certain school and transit buses, the Parker single check valve (SCV) that connects with the supply port of the Bendix SR-7 spring brake modulating valve may become excessively worn and eventually break apart. Pieces of the Parker SCV can become lodge inside the SR-7 valve, possibly causing either leakage out of the SR-7 valve or preventing air from properly exhausting from the SR-7 valve. This condition can cause a delay in the application of the parking brakes, the spring brakes not fully releasing or loss of isolation between the primary and secondary circuits. These conditions can occur without warning, leading to unintended vehicle rollaway, brake drag, or in case of loss of primary circuit, inability to modulate the spring brakes. An unattended roll away vehicle could strike a bystander or cause property damage. Correction: Dealers will replace the single check valve (SCV).
View the official source notice →Mack CV
- Published
- 2007-08-14
- Model years
- 2004–2008
On certain school and transit buses, the Parker single check valve (SCV) that connects with the supply port of the Bendix SR-7 spring brake modulating valve may become excessively worn and eventually break apart. Pieces of the Parker SCV can become lodge inside the SR-7 valve, possibly causing either leakage out of the SR-7 valve or preventing air from properly exhausting from the SR-7 valve. This condition can cause a delay in the application of the parking brakes, the spring brakes not fully releasing or loss of isolation between the primary and secondary circuits. These conditions can occur without warning, leading to unintended vehicle rollaway, brake drag, or in case of loss of primary circuit, inability to modulate the spring brakes. An unattended roll away vehicle could strike a bystander or cause property damage. Correction: Dealers will replace the single check valve (SCV).
View the official source notice →Mack CXN
- Published
- 2007-08-14
- Model years
- 2005–2008
On certain school and transit buses, the Parker single check valve (SCV) that connects with the supply port of the Bendix SR-7 spring brake modulating valve may become excessively worn and eventually break apart. Pieces of the Parker SCV can become lodge inside the SR-7 valve, possibly causing either leakage out of the SR-7 valve or preventing air from properly exhausting from the SR-7 valve. This condition can cause a delay in the application of the parking brakes, the spring brakes not fully releasing or loss of isolation between the primary and secondary circuits. These conditions can occur without warning, leading to unintended vehicle rollaway, brake drag, or in case of loss of primary circuit, inability to modulate the spring brakes. An unattended roll away vehicle could strike a bystander or cause property damage. Correction: Dealers will replace the single check valve (SCV).
View the official source notice →Mack CXP
- Published
- 2007-08-14
- Model years
- 2006–2006
On certain school and transit buses, the Parker single check valve (SCV) that connects with the supply port of the Bendix SR-7 spring brake modulating valve may become excessively worn and eventually break apart. Pieces of the Parker SCV can become lodge inside the SR-7 valve, possibly causing either leakage out of the SR-7 valve or preventing air from properly exhausting from the SR-7 valve. This condition can cause a delay in the application of the parking brakes, the spring brakes not fully releasing or loss of isolation between the primary and secondary circuits. These conditions can occur without warning, leading to unintended vehicle rollaway, brake drag, or in case of loss of primary circuit, inability to modulate the spring brakes. An unattended roll away vehicle could strike a bystander or cause property damage. Correction: Dealers will replace the single check valve (SCV).
View the official source notice →Mack CXU
- Published
- 2007-08-14
- Model years
- 2008–2008
On certain school and transit buses, the Parker single check valve (SCV) that connects with the supply port of the Bendix SR-7 spring brake modulating valve may become excessively worn and eventually break apart. Pieces of the Parker SCV can become lodge inside the SR-7 valve, possibly causing either leakage out of the SR-7 valve or preventing air from properly exhausting from the SR-7 valve. This condition can cause a delay in the application of the parking brakes, the spring brakes not fully releasing or loss of isolation between the primary and secondary circuits. These conditions can occur without warning, leading to unintended vehicle rollaway, brake drag, or in case of loss of primary circuit, inability to modulate the spring brakes. An unattended roll away vehicle could strike a bystander or cause property damage. Correction: Dealers will replace the single check valve (SCV).
View the official source notice →Mack GU
- Published
- 2007-08-14
- Model years
- 2008–2008
On certain school and transit buses, the Parker single check valve (SCV) that connects with the supply port of the Bendix SR-7 spring brake modulating valve may become excessively worn and eventually break apart. Pieces of the Parker SCV can become lodge inside the SR-7 valve, possibly causing either leakage out of the SR-7 valve or preventing air from properly exhausting from the SR-7 valve. This condition can cause a delay in the application of the parking brakes, the spring brakes not fully releasing or loss of isolation between the primary and secondary circuits. These conditions can occur without warning, leading to unintended vehicle rollaway, brake drag, or in case of loss of primary circuit, inability to modulate the spring brakes. An unattended roll away vehicle could strike a bystander or cause property damage. Correction: Dealers will replace the single check valve (SCV).
View the official source notice →Mack LEU
- Published
- 2007-08-14
- Model years
- 2008–2008
On certain school and transit buses, the Parker single check valve (SCV) that connects with the supply port of the Bendix SR-7 spring brake modulating valve may become excessively worn and eventually break apart. Pieces of the Parker SCV can become lodge inside the SR-7 valve, possibly causing either leakage out of the SR-7 valve or preventing air from properly exhausting from the SR-7 valve. This condition can cause a delay in the application of the parking brakes, the spring brakes not fully releasing or loss of isolation between the primary and secondary circuits. These conditions can occur without warning, leading to unintended vehicle rollaway, brake drag, or in case of loss of primary circuit, inability to modulate the spring brakes. An unattended roll away vehicle could strike a bystander or cause property damage. Correction: Dealers will replace the single check valve (SCV).
View the official source notice →Mack MRU
- Published
- 2007-08-14
- Model years
- 2008–2008
On certain school and transit buses, the Parker single check valve (SCV) that connects with the supply port of the Bendix SR-7 spring brake modulating valve may become excessively worn and eventually break apart. Pieces of the Parker SCV can become lodge inside the SR-7 valve, possibly causing either leakage out of the SR-7 valve or preventing air from properly exhausting from the SR-7 valve. This condition can cause a delay in the application of the parking brakes, the spring brakes not fully releasing or loss of isolation between the primary and secondary circuits. These conditions can occur without warning, leading to unintended vehicle rollaway, brake drag, or in case of loss of primary circuit, inability to modulate the spring brakes. An unattended roll away vehicle could strike a bystander or cause property damage. Correction: Dealers will replace the single check valve (SCV).
View the official source notice →