If the Backrest is raising on its own then the gas strut might need to be adjusted and not replaced. To adjust the Gas Strut,
skip to page 2.
To replace the Gas Strut, follow the instructions below.
Start by using a flat headed screw driver to prise off the two nut caps at the bottom of the gas spring.
Then using the two 17mm spanners remove the bolt, nut and washers from the bottom of the back rest as shown in picture
1.
Take care when removing the bolt as the back rest will want to fall down.
Then unscrew the gas strut from the Trunnion at the top of the back rest as shown in picture 2.
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How to replace a faulty gas strut.
To install the new gas strut, start by screwing the gas strut into the trunion as shown in picture 2. Be careful when
screwing it in because if the gas strut goes in to far then it will extent. Check the pictures below for the correct spacing.
Then connect the bottom of the gas spring as shown in picture 1. Tighten and cover with the nut caps.
Picture 1
Picture 2
1mm Gap
Long Gas Spring
Part No. #0302