RedMax BCZ2500SU manual Maintenance Chart, MA1 MA2 MA3 MA4 Refilling Trimming Line,  21 

9. Maintenance

■MAINTENANCE CHART

					every	every	every
					25	50	100
		system/compornent	procedure	before	hours	hours	hours	note
				use	after	after	after
		fuel leaks, fuel spillage	wipe out	✔
E
		fuel tank, air filter, fuel filter	inspect/clean	✔	✔			replace, if necessary
N
		idle adjusting screw	see ■ADJUSTING	✔				replace carburetor
G			IDLING SPEED (p.19)					if necessary
I		spark plug	clean and readjust			✔		GAP: .025in(0.6~0.7mm)
N			plug gap					replace, if necessary
E		cylinder fins, intake air cooling vent	clean		✔
		muffler, spark arrester, cylinder exhaust port	clean				✔
S		throttle lever, ignition switch	check operation	✔
	cutting parts		replace if	✔
H
			something's wrong
A
	debris guard	make sure to attach	✔
F
	gear case	grease		✔
T
	screws/nuts/bolts	tighten/replace	✔			✔	not adjusting screws

MA1

MA2

MA3

MA4

■REFILLING TRIMMING LINE

1.For replacement line, use a diameter of .095 in(2.4mm). The spool is capable for a line upto 27ft(8m)on the 4” head, and 46ft(14m)on the 6” head. Avoid using a larger line as it may cut down the trimming performance.

WARNING

For safety reasons, do not use metalreinforced line.

2.Pinch the slotted area on the both sides of the spool housing to unhook the bottom cap. (MA1)

3.Take out the spool and pull off the old line. Put one end of new line through the spool holes and pull it until the length is equal between each part of the line. (MA2)

4.Wind up the line in the correct direction as indicated on the spool. (MA3)

5.Hook each end of the line in the slot on the edge of the spool, and then put the ends through the eyelets on the housing. Make sure that the spring and the washers are in place. (MA4)

6.While holding the spool against the housing, pull the line ends to release them from the slot.

7.Line up the slot on the bottom cap with the hook on the housing, press the cap against the housing until it clicks.

21 