Bolens 52069-6HP Maintenance, Adjusting Trimmer Head Engagement, To Adjust Belt Tension

Section

5

Maintenance

11

WARNING

Before inspecting, cleaning or servicing the machine, shut off engine, discon- nect spark plug wire, and make sure that all moving parts have come to a com- plete stop. Remove ignition key on electric start models.

Failure to follow these instructions can result in personal injury or property damage.

NOTE: LEFT and RIGHT sides of unit are as viewed from operator’s position behind the handlebars.

REQUIRED MAINTENANCE SCHEDULE

REQUIRED MAINTENANCE	BEFORE	EVERY	EVERY	EVERY	AS
	EACH	5	25	100	NOTED
	USE	HOURS	HOURS	HOURS
CHECK ENGINE OIL LEVEL	•	•
CHECK TRIMMER/MOWER LINES	•				1
CHECK TRIMMER HEAD ENGAGEMENT	•
ENGINE/MACHINE CLEANING	•				3
CHECK NUTS AND BOLTS	•
CHANGE ENGINE OIL			•		2, 5
SERVICE AIR FILTER SYSTEM			•		5
CLEAN UNDER DECK			•
GENERAL LUBRICATION			•
INSPECT DRIVE BELT				•
CLEAN ENGINE	•				4
CHECK WEAR CUP		•			6

Chart 5-1

NOTE 1 – New line replacement is suggested when old line is 50% or less of original length. NOTE 2 – Change oil after first two hours of new operation; thereafter every 25 hours. NOTE 3 – Clean daily if used in extremely dusty/dirty conditions (see Engine Owner’s Manual). NOTE 4 – Clean before using machine and at each fuel refill.

NOTE 5 – Service more often if used in extremely dusty or dirty conditions (see Engine Owner’s Manual).

NOTE 6 – Replace when severe gouges exist on bottom surface.

ADJUSTING TRIMMER

HEAD ENGAGEMENT

The tension on the drive belt must be correct for proper operation of the trimmer head. If the tension is correct, the trimmer head will rotate when the Trimmer Head Control Bail is pulled back against the handlebar (another indication of correct tension is if the engine stalls when the trimmer head becomes bound up in very tough material.)

A worn or loose drive belt will slip on its pulleys, causing the trimmer head to move slowly, or not at all, when the con- trol bail is engaged (belt squealing may also be noticeable).

If the tension is too tight, the trimmer head may rotate before the control bail is engaged, or when there is no free play in the control bail.

TO ADJUST BELT TENSION

1.Stop the engine and wait for all parts to stop moving. Adjust the position of the two nuts on the control cable adjust- ment stud (see Figure 5-2) as described next:

a.To tighten belt tension, move the upper nut (A, Figure 5-2) upward, then move the lower nut (B) upward. Tighten both nuts securely.

b.To loosen belt tension, move the lower nut (B, Figure 5-2) down and then the upper nut (A) down. Tighten both nuts securely.

A

B

Figure 5-2: Belt tension adjustment.