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Author archives: TRW

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    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

    How to replace a brake hose

    Whether or not a brake hose is worn or damaged as shown, TRW recommends that hoses should be changed every 50,000 km or after 5 years at the latest. This is because the rubber from which these hoses are made is a perishable item and has a defined lifetime.

    November
    18
    2019

    Instructions for replacing the brake pads on a TRW caliper type “Colette”

    Workshops regard changing the brake pads as one of the easiest tasks in vehicle repairs. Our internal analyses have revealed, however, that there are several sources of error which can eventually lead to severe problems on the brake. Poor brake performance and juddering during braking, with the corresponding effects on the components of the axle …

    October
    14
    2019

    How to remove and refit an EPHS steering pump

    Here TRW Aftermarket offers advice on removing and refitting an EPHS steering pump, where the the pump is mounted in the front wheel arch. With the vehicle raised on a two post lift, remove the appropriate wheel followed by any wheel arch linings as shown. This will expose the pump and its mounting. Before proceeding …

    July
    29
    2016

    TRW Aftermarket examines the power of steering

    The demands on global vehicle manufacturers (VMs) to reduce vehicle weight, cost and hydrocarbon emissions are omnipresent. In turn, this places more and more pressure on parts and systems manufacturers to develop new fuel-saving technologies or to improve existing ones. A leader in this field is the ZF Group, owner of the TRW brand. The …

    May
    26
    2016

    TRW Aftermarket examines the power of steering

    The demands on global vehicle manufacturers (VMs) to reduce vehicle weight, cost and hydrocarbon emissions are omnipresent. In turn, this places more and more pressure on parts and systems manufacturers to develop new fuel-saving technologies or to improve existing ones.

    May
    4
    2016