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6.2.3 PULLEY ALIGNMENT & BELT TENSION (for items 8093262 & 8186751)
cont’d
1. Belt
Tension
(cont’d)
Figure 5: Belt Tension
a) Remove the belt guard.
b) Loosen the pump mounting bolts.
c) Shift the pump to the point where the correct deflection exists.
d) Retighten the pump mounting bolts.
e) Check to ensure that the tension remained correct.
f) Reinstall the belt guard. All moving parts must be guarded.
The size of the belt guard limits how much the pump can be moved to adjust the belt tension.
There is approximately 0.5” clearance for each pulley to the inside of the belt guard upon
installation.
NOTE: the pulleys should have a minimum clearance of 3/16” (.188”) at all times.
2. Pulley
Alignment
To check pulley alignment, remove the belt guard and place a straightedge (C in Figure 6 below)
against the pump pulley (D in Figure 6 below). Measure and record the distance from the straightedge
to the edge of the drive belt (dimension E). Then measure the distance from the straightedge to the
edge of the drive belt again as shown by dimensions F and G. Both distances should be the same as
dimension E. If F or G is different from E, there is a misalignment that must be corrected before the
pressure washer is run. To correct a pulley misalignment, use the following procedure.
a) Remove the belt guard.
b) Loosen the pump mounting bolts.
c) Loosen the bolts on the engine or pump pulley bushing (which
ever is easier to work with – the pump shaft is relatively short).
d) Align the engine pulley with the pump pulley (E=F=G).
e) Retighten the bolts on the engine or pump pulley bushing.
f) Adjust the proper belt tension.
g) Retighten the pump mounting bolts.
h) Reinstall the belt guard. All moving parts must be guarded.
1/2” Deflection
10 Lbs Force
Figure 6: Pulley Alignment