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Author archives: TRW

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    TRW: Wheel Cylinder Replacement

    TRW was recently asked if a vehicle with a leaking wheel cylinder on the offside should have the nearside cylinder replaced as well. The answer is ‘yes’ and it is recommended that parts such as wheel cylinders should always be changed in axle sets. However, the age of the vehicle should also be taken into …

    December
    10
    2020

    ABS Operation

    This short video demonstrates the hydraulic function of the ABS system. The main elements of the ABS system : Wheel, with brake caliper and wheel speed sensor ABS control unit (ECU) ISOlation valve DUMP valve LPA (low pressure accumulator) Motor pump unit Brake servo, master cylinder and brake pedal Normal Braking: ABS Operation not Required …

    November
    19
    2020

    Superkit Installation

    This video demonstrates how to replace brake shoes and wheel cylinders using a TRW Superkit (pre-assembled brake shoe kit). The initial sequence shows the pre-assembled Superkit; brake shoes and adjuster. Sequence of operation: Remove road wheel Release/disengage the self adjust mechanism Remove the brake drum Remove the hold down springs using correct tools Release brake …

    October
    29
    2020

    TRW Clutch and Handbrake Cables

    TRW’s research suggests that only 2 per cent (4.2 million) of vehicles on European roads have parts such as handbrake cables changed on an annual basis, which reinforces the recommendation that as high wear parts, cables should be given the same consideration as any other safety critical component and checked regularly.

    September
    30
    2020

    Superkit Installation

    This video demonstrates how to replace brake shoes and wheel cylinders using a TRW Superkit (pre-assembled brake shoe kit).

    July
    1
    2020

    Wheel Cylinder Replacement

    TRW was recently asked if a vehicle with a leaking wheel cylinder on the offside should have the nearside cylinder replaced as well. The answer is ‘yes’ and it is recommended that parts such as wheel cylinders should always be changed in axle sets. However, the age of the vehicle should also be taken into account. …

    May
    1
    2020

    Handbrake Cable Replacement

    Research from TRW suggests that only 2 per cent (4.2 million) of the European car parc changes parts such as handbrake cables on an annual basis. It is suggested that this figure should be much higher and workshop mechanics, fitters and technicians are strongly encouraged to check cables more regularly. Types of Cable There are …

    April
    8
    2020

    Electrically powered hydraulic steering (EPHS)

    EPHS is an electrically powered steering system by ZF TRW that combines the benefits of electric steering with the robust design of traditional servo-assisted rack-and-pinion systems.

    February
    24
    2020

    Hydraulic braking systems – Replacing the fluid reservoir

    Performing repairs following an accident or changing a brake master cylinder that does not have its own reservoir may make it necessary to replace the brake fluid reservoir. It is important to carry out such repairs with due care and attention using the correct special tool.

    February
    3
    2020

    Hydraulic rack-and-pinion steering – Replacing the power steering pump

    Traditional hydraulic rack-and-pinion steering systems are still frequently used in vehicles today. In this type of system, the power steering pump is driven directly and therefore permanently by the motor. These systems are extremely reliable, but as the vehicle’s mileage increases they become prone to leaking and generating noise when the driver steers. If the …

    January
    10
    2020