Piovan Group Piovan Group Shredder SFX SFX

- Inspect the screen condition and mounting for tightness, damage, and deformation

- When replacement or removal is required the following procedure should be followed:

1. Follow all "Lock Out" procedures to insure machine cannot be operated while procedure is performed

2. Remove mounting bolts that secure screen to machine

3. Remove screen from discharge area

4. Inspect mounting holes to insure threaded hole is clean from debris and foreign materials and threads are not damaged

5. Install and locate screen to machine using suitable pry bar or lifting devise. Install mounting bolts and washers

6. Locate screen in such a position as to insure no interference with rotor assembly is present

7. Tighten mounting bolts to proper torque starting at center of screen working outward

- Inspect bushing for fatigue cracks in rubber cushion area. Inspect bushing pin bore for excessive movement between diameter and bore of bushing. The bushings are pressed into the torque arm assembly; therefore it is recommended to replace torque arm assembly and adjusting pin if bushing replacement is necessary

- Inspect Ram Wipers. Replacement will be necessary when 5/8" to 3/4" of wear is present (page 47)

- Inspect for wear on monthly basis. They are generally considered worn when approximately 1/8” from original specs and should be replaced (page 48)

- The hydraulics power system employs a high quality return oil filter (page 49). The filter has an indicator that changes color when it is time to be changed. Check filter every 30 days. The hydraulic fluid should last indefinitely unless it suffers severe overheating

- Inspect breather filter and replace when required. If machine is operated in extreme temperature conditions, adding an oil heater or oil cooler may be required

- The oil level in the tank should be checked on a regular basis. Refill hydraulic oil as necessary with this oil or equivalent. Do not overfill the hydraulic tank with oil. - The hydraulic cylinder requires lubrication to clevis pins. Grease fittings located on clevis eye require lubrication with grease once monthly. Visually inspect following items frequently:

1 Inspect all lines and fittings for leakage

2 Inspect rod end of cylinder for leakage at packing cap seals

- The oil level in the gearbox should be checked on a regular basis

- The oil level in the fluid coupling should be checked on a regular basis. Fluid coupling oil should be checked after every 6 months of operation (fluid should be cold while performing check)

- If the fusible plug blows at regular intervals in normal service, check the following listed possible causes for correction. High oil operating temperature can be caused by the following:

2 Absorbed power is higher than the motor rated power

6 Inadequate air ventilation to allow cooling of the coupling. If coupling is operated in a restricted space, adequate ventilation apertures should be provided;

- Replace any damaged parts as quickly as possible. This will reduce possibility of more severe damages

- Check for loose screws, bolts, hydraulic connections, etc. on a regular 50 hour operational interval. Correct any problems that are discovered immediately

- Check hydraulic fluid level daily. Check other component functions as outlined in Chapter 4

- Rotate or replace indexable cutters located on rotor whenever cutting results are poor. Torque bolts to proper torque according to torque value found in the appendix. Rotate rotor by hand to ensure proper clearance to counter knife before start-up

- Replace/rotate/sharpen counter-knives whenever cutting results are poor. Rotate rotor by hand and adjust counter-knives to proper clearance before applying power. Be sure counter-knife retaining bolts are tightened to proper torque according to torque value found in the appendix. Refer to adjustment information for proper alignment

- To insure proper cooling of motors and machine components make sure machine is free of dust at all times. Clean on a regular basis

- Check on daily basis for unrestricted air flow on hydraulic oil cooler

- If machine has air cooler on hydraulic package, remove front cover and clean with compressed air from back side of cooler to remove foreign material, whenever conditions indicate need

- Follow all lock out / tag out procedures while maintaining, servicing or cleaning the shredder

- Fluid coupling oil should be replaced after every 4000 hours of service. Refill fluid coupling oil as necessary according to the manufacturer’s recommendations. Do not overfill the fluid coupling with oil. Refer to the fluid coupling manufacturer’s maintenance manual that was provided with this manual;