Sedgwick MB - 6.0 Guarding; 6.1 The Front Cutterblock Guard; 6.2 The Rear Cutterblock Guard; 6.4 The Anti-Kickback Fingers

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6.0 Guarding
All guards should be checked at the beginning of each working shift for damage etc.
6.1 The Front Cutterblock Guard
The yellow pillar mounted guard at the front of the machine is known as the bridge guard. It is
designed for use when surfacing, and it is important that all operators are familiar with its use.
Investigations show that most accidents occur because the guard is not properly adjusted or, in
most cases, is not mounted on the machine. The guard is provided with two hand locking
arrangements, one for the vertical plane and one for the horizontal. This guard should be
maintained through regular cleaning and lubrication, and if it becomes distorted through misuse
then it should be replaced.
6.2 The Rear Cutterblock Guard
To the rear of the fence is mounted a hinged guard which is known as the rear cutterblock
guard. This is designed to guard that part of the cutterblock that is on the side of the fence
remote from the bridge guard. There is no need for its removal from the fence.
6.3 The Rear Drive Guard
The rear drive guard should only be removed for maintenance and cleaning.
6.4 The Anti-Kickback Fingers
The anti-kickback fingers are an essential safety feature of the thicknessing function. Their
purpose is to drop and lock into the face of the workpiece in the event of kickback, thereby
preventing it being ejected from the machine. The movement of the fingers may in time become
restricted due to a build-up of waste, and their freedom to move freely should be regularly
checked and cleaned as necessary.
7.0 The Cutterblock
The concept of the TERSA cutterblock is to allow the automatic clamping of the cutters using
centrifugal force. The exactness of the position is +/- 0.02mm, guaranteed on all the sharp
edges and on the whole length of the planing shaft. For correct use of the tool it is
recommended that a suitable product is used to occasionally clean the support runner of the
cutters.
To replace the knives on your MB/CP the following guidelines should be followed:
Planer knives are razor sharp. Please handle them with the utmost care,
especially when turning the cutterblock by hand.
First isolate the machine at the mains. It is not sufficient just to shut off power at the machine.
Next put up a notice saying “cutters being changed”, in case you have to leave the machine for
any reason and someone else might try to use it not knowing the knives are loose. Clean off any