Briggs & Stratton 5900613, 5901186 Hydraulic Pump Drive Belt Replacement, Troubleshooting, Front

Troubleshooting, Adjustment & Service

HYDRAULIC PUMP DRIVE BELT REPLACEMENT

1.Park the tractor on a smooth, level surface such as a concrete floor. Disengage the PTO, engage the parking brake, turn off the engine, and remove the ignition key.

2.Remove the PTO drive belt (see MOWER BELT REPLACEMENT for removal instructions).

3.Loosen the nut towards the front of the machine on the spring anchor hook (H, Figure 44) to release the majority of the belt tension. Use caution and remove the nut to completely release the tension.

4.Remove the old belt and replace it with the new one. Make sure the V-side of the belt runs in the grooves of the crankshaft pulley and pump pulleys (B & C).

5.Reinstall the anchor hook (H) into the anchor tab and loosely fasten the nut. Adjust the spring until a measurement of 7-3/4” (19,7cm) is achieved from the outside of the spring hooks. Tighten nut.

6.Reinstall the PTO drive belt.

B	FRONT
E	A
F	D
7-3/4”
(19,7cm)
C	C
G	H

Figure 44. Hydraulic Pump Drive Belt

Replacement

A.Pump Drive Belt

B.Crankshaft Pulley

C.Pump Pulley

D.Idler Pulley (stationary)

E.Idler Pulley

F.Idler Arm

G.Spring

H.Spring Anchor Hook

Troubleshooting

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