Test the compression pressure - AR01.00-P-1200L

ENGINE 137 in MODEL 215, 220 

ENGINE 275 in MODEL 215, 216, 220, 221, 230 

ENGINE 285 in MODEL 240 

Shown on engine 285 in model 240 

Fig 1: Identifying Compression Tester

	Remove/install
	Risk of accident  caused by vehicle starting off by itself when engine is running. Risk of injury  caused by contusions and burns during starting procedure or when working near the engine as it is running	Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
1	Bring engine to operating temperature (approx. 80°C)	Only test compression pressure when engine is at normal operating temperature.
2	Remove a spark plug from each cylinder	See: Replace spark plugs
		Model 215, 220, 230	AP15.10-P-1580L
		Model 216, 221	AP15.10-P-1580SZ
		Model 240	AP15.10-P-1580H
3.1	Crank engine with starter.	Model 215, 220, 230, 240 Do not crank engine via electronic ignition switch control unit or Start/Stop button since fuel can enter into the cylinders and this can distort the measuring result. To crank engine, press contact switch on compression recorder (01). Crank engine for approx. 5 seconds in order to eliminate combustion residues in cylinder.	AR01.10-P-0110V
3.2	Connect up compression recorder (01) and crank engine	Model 216, 221 Do not crank engine via electronic ignition switch control unit or Start/Stop button since fuel can enter into cylinders and this can distort the measuring result. To crank engine, press contact switch on compression recorder (01). Crank engine for approx. 5 seconds in order to eliminate combustion residues in cylinder.	AR01.10-P-0010-01SX
	Checking
4	Press compression recorder (01) onto spark plug hole
5.1	Crank engine with starter.	Model 215, 220, 230, 240 Do not crank engine via electronic ignition switch control unit or start/stop button, because by doing so the fuel can enter into the cylinders and this can cause the measuring result to be distorted. To crank engine, press contact switch on compression recorder (01). Crank until no further pressure rise is monitored on compression recorder (01).	AR01.10-P-0110V
5.2	Crank engine with compression recorder (01)	Model 216, 221 Do not crank engine via electronic ignition switch control unit or start/stop button, because by doing so the fuel can enter into the cylinders and this can cause the measuring result to be distorted. To crank engine, press contact switch on compression recorder (01). Crank until no further pressure rise is monitored on compression recorder (01).
6	Carry out test procedure on all cylinders in the same way.
7	Compare measurements obtained with the specified pressures	Compression installation tolerance or new value	*BE01.00-P-1001-01D
		Compression pressure wear limit or limit value	*BE01.00-P-1002-01D
		Compression pressure permissible difference between individual cylinders If pressure indicated is less than the minimum compression pressure or if the permissible difference between the individual cylinders is exceeded: ↓ Inspect cylinders for leaks	*BE01.00-P-1003-01D
		Engine 137, 285	AR01.00-P-1300HV
		Engine 275	AR01.00-P-1300LA
8	Install in the reverse order