MAINTENANCE

TIMBER CAT HEAD

Lubrication/Daily Checks (Figure Mnt-0007)

Lubricate the grease fittings on top of the blade bar every 4 hours. See Figure Mnt-0007.

Every 8 hours, lubricate the cylinder grease fitting through the top slot in the cover. See Figure Mnt- B-0007. Every 8 hours, check all bolts and nuts for proper tightness. Tighten any bolt or nut found to be loose. Periodically check the hydraulic connections for oil leaks. Visually inspect the hoses for damage and replace as necessary. Periodically inspect blade stroke adjustment by running the head at normal operating speed (540 PTO RPM)

and checking that the upper and lower blades line-up perfectly the instant of reversal (when they change direction).

Improper adjustment is also indicated by an abnormally high shock load on the hydraulic system during blade reversal. This is due to the hydraulic cylinder reaching its stroke limit, causing the pressure relief reversing components to engage. Continuous operation in this mode will result in oil overheating and premature failure of components. If the unit is improperly adjusted, follow the stroke adjustment procedures below.

Stroke Adjustment (Figure Mnt-B-0008)

Position the head in a safe area for operation. If necessary, barricade the head to prevent contact while it is being operated.

Remove the cover and loosen the two jam nuts (Item 1). See Figure Mnt-B-0008. Screw the two spring bolt assemblies (Item 2) in toward the valve push buttons. Start the unit and bring the speed up to normal operating speed (540 PTO RPM). Check the blade overlap. Adjust the spring bolt assemblies (Item 2), one by one until the upper and lower blades perfectly align in the instant of reversal. Never adjust the bolt assemblies to a point where

the hydraulic cylinder reaches it's stroke limit! This is indicated by an abnormally high shock load on the hydraulic system due to the pressure relief reversing components being engaged. Continuous operation in this mode will cause premature component failure and hydraulic oil overheat. Once proper adjustment has been achieved, tighten the jam nuts (Item 1) and replace cover.

MACHETE 2 11/08

Maintenance Section 4-11

©2008 Alamo Group Inc.

MAINTENANCE

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Alamo 02986941C manual Timber CAT Head, Lubrication/Daily Checks Figure Mnt-0007

02986941C specifications

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