9-inch Hydraulic Backing Plate – Left

Part No: 311101 Category:

$43.75

3 in stock

Refresh your brakes with a brand-new backing plate.
High-quality components that won’t wear prematurely.
✓ Quick and easy to install to get back on the road.
Right is the driver’s side, and Left is the passenger’s Side.

Supplied by Couplemate™️.

3 in stock

Frequently Bought Together

9-inch Hydraulic Backing Plate - Right

Refresh your brakes with a brand-new backing plate.
High-quality components that won’t wear prematurely.
✓ Quick and easy to install to get back on the road.
Right is the driver's side, and Left is the passenger's Side.

Supplied by Couplemate™️.

Couplemate accepts PayPal, Visa and Mastercard.

9-inch Hydraulic Backing Plate – Left

The 9-inch Left Hydraulic Backing Plate is a standard brake system for trailers, caravans, and horse-floats.

Commonly known as AL-KO-style, this backing plate is often used as a ‘universal’ replacement. It is supplied as a complete assembly, with new brake shoes and wheel cylinders.

Often, it is easier to replace the entire assembly with a new backing plate rather than replacing individual parts.

Backing plates used on trailer and caravan brakes are similar to those used in the automotive industry. They are great because they are reliable, efficient, and easy to replace.

Product Specifications

  • SKU/s: 311100 (Right), 311101 (Left)
  • Cylinder Type: Dual Piston
  • Dimensions: 9″ x 1 3/4″

N.B. Does not replace WestCo backing plates.

When mounting the backing plates, ensure that the wheel cylinder bleed nipple sits at the top of the drum. Air rises to the top of the brake cylinder and is released during bleeding.

Tip: The right-side plate replaces the driver’s side, and the left side replaces the passenger’s.

How to Adjust 9″ Hydraulic Drum Brakes

Adjusting your drum brake shoes is a relatively simple but necessary task.

Generally, most mechanics recommend adjusting your brake shoes after the first 500km travelled and every 5000km thereafter. An easy way of keeping track of this is by installing a Bluetooth Hub-Odometer.

To adjust your hydraulic drum brakes, follow the steps below:

  1. Apply the foot brake three times. If a handbrake is fitted, ensure this is released.
  2. Check that the wheel and drum rotate freely; if not, check the default adjustment.
  3. Locate the two large hexagonal-shaped bolts. They are on the back of the backing plate on the left and right side (3 o’clock and 9 o’clock).
  4. Turn one hexagon bolt clockwise until the wheel is very difficult to turn. You will need to use a ring spanner.
  5. Back off until the wheel spins with only a slight drag in the lining. Adjust the second hexagonal bolt and repeat for the second shoe.
  6. Apply the foot brake again three times. Then, you will need to repeat the adjustment of the two hexagon bolts as you did previously.
  7. Repeat this process for all wheels.

How do Hydraulic Brakes Work?

  • Hydraulic brakes are simple yet effective. In broad terms, it transmits force applied at one point to another by incompressible fluid.

When you apply the foot brake, the wheel cylinder forces brake fluid into the backing plate. Because it is incompressible, this fluid causes pressure to force your brake shoes to expand and make contact with the brake drum. This generates friction, which causes your trailer to brake.

Compatible 9-inch Hydraulic Parts

Additional information

Weight3 kg
Dimensions25 × 25 × 10 cm

Our Service Lifetime Warranty

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

Couplemate™ is a manufacturer and vendor of high-quality towing, trailer, and caravan components. Couplemate™ Core Goods and Custom Work are guaranteed to be free of defects for the service lifetime of the product when used as intended.

Warranties are non-transferrable and Couplemate™ requires satisfactory proof of purchase prior to issuing a remedy. The full Couplemate™ Warranty Policy can be found in the Terms & Conditions: Section 8 – Consumer Guarantees & Warranty.

Warranties are in addition to your rights under the Australian Consumer Law. If something is wrong with your order, please contact our team.

60-Day Returns

After 60 years of experience, we know that life has its unpredictable moments.

All Couplemate™ orders (online, over the phone, or in-store) have a 60 day period for change-of-mind returns and exchanges. There are some items that can’t be returned and some returns may incur a 15% restocking fee.

You can view our full policy for change-of-mind returns here.

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