Service Adjustments
48ZS
Engine-to-Hydrostatic Drives Belt
Adjustment (Hydro Input Belt)
• The hydro input belt is located
underneath the chassis atthe rear
of the mower. The belt should move
approximately 1/8 to 3/16-inch with
three (3) to five (5) pounds of
pressure applied to the belt midway
between the hydrostatic drive
pulleys when initially installed. After
approximately 1 hour of running
time, verify that the belt tension is
still correct and tighten if necessary
Important: Donot over-tighten the
belt.
• To adjust the belt, turn the nut on
the threaded tension rod found on
the right, rear corner of the mower.
• 13onotover-tighten. This could
cause damage to the hydraulic drive
systems.
• The hydro input belt is an 8PK1690
multi ribbed v belt.
Hydro input belt diagram
View from above
Engine Pulley
,/
Idle Pulley
Rear of
Rev:May2011 STANLEY48" ZS 22
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