Multiquip PS403030 Belts and Pulleys, To Stop Bladeshaft Rotation, To Start Bladeshaft Rotation

MQ PS4030 SAW — MAINTENANCE

Belts and Pulleys

This saw uses a 6 groove 3V X 500 Optibelt for it's Drive Belt System and a Hydrostatic Pump Belt, (AX-35).

2

1

3

1.Blade Shaft Drive Belt

2.Transaxle Drive Belt

3.BeltTensioner Pulley

Figure 47. Belt Locations

V-BeltTension

CAUTION

Keep belts clean of foreign material that may cause slippage. Never dress belts as this can cause premature failure.

Ideal V-Belt tension is the lowest tension at which the belt will not slip under peak load conditions.

The V-belt tension on this saw is controlled by the hydraulic system that actuates the Blade Shaft Engage/Disengage System. Hydraulic pressure exerted on the engine tilt cylinder applies force on the Belt Drive System to engage Bladeshaft rotation.

Engine must be at idle when engaging or dis-engaging bladeshaft drive:

To STOP Bladeshaft Rotation:

Push rocker switch labeled BLADESHAFT forward. Engine will tilt forward, dis-engaging the drive belt.

To START Bladeshaft Rotation:

Push rocker switch lableled BLADESHAFT backward. Engine will tilt back, engaging the belt drive.

1

2

3

5

4

1.Engine Sheave

2.Tensioner Nut

3.Tensioner Base

4.Jackshaft Pulley

5.Tensioner Pulley

Figure 48. Belt Drive System

MQ PS4030 SAW • OPERATION MANUAL — REV. #0 (02/29/08) — PAGE 45