CUTTING CYLINDER
Frequent fine adjustment of the cylinder to the bottom blade will give the best cutting performance and extend the period between sharpening. The design of the cylinder enables the trailling edge to be sharpened while the machine is in operation. It is recommended to reverse the cylinder at regular intervals ( eg each time the bottom blade is sharpened) in order to maintain a good cut. When a new bottom blade is fitted the cylinder should be cylindrically ground and bearings checked to maintain trueness.
TO REMOVE CUTTING CYLINDER
Remove blade sole plate, then sharpen and straighten bottom blade.
Remove cylinder chain by undoing the chain joining link.
Remove cylinder sprocket boss (NOTE:
Loosen nuts on cylinder adjuster rods.
Remove bolts from the two adjuster rod anchors.
Remove the four bolts securing the two bearing housings.
Pull out the cylinder through the bottom of the mower.
Check bearings and grease nipples.
Clean the side plates to avoid dirt entering the bearing housings.
Reverse cylinder so that the sharp trailing edge is at the front.
Ease the cylinder back into position by lifting with the adjuster rods.
DO NOT OVERTIGHTEN the cylinder bearing housing bolts. (Just nip up)
Refit sole plate and ensure that these bolts are tight.
Adjust cylinder down evenly to the blade so as to cut paper.
Do not overtighten cylinder onto bottom blade as this causes excessive wear to cutting edge. Grease bearings and right mower.
Refit cylinder sprocket boss, chain and chain case. Ensure that the chain joiner is secured with the closed end facing the drive direction.
TO REMOVE THE BACK ROLLER
Turn off the petrol, turn the engine to Top Dead Centre & remove chaincase.
Remove cover plate over the slotted side plate, behind the 35 tooth sprocket.
Remove the four bearing housing bolts.
Drop the back roller from chassis by lifting the mower handles.
Service bearings and roller as found necessary.
Note that the 35 tooth sprocket is secured with a left hand thread.
Refit roller by lifting the mower and secure with the bearing bolts.
Refit chain and adjust the chain tension by using the nut on back of 52 tooth idler sprocket. Be sure to avoid overtightening the chains and test this over a full rotation of all the sprockets.
Oil Chains.
Refit chain case and seal.
