SL940-Install-Ops-Maintenance-7210918_B.pdf - 第153页

Parts Replacement 9-5 9.8 Replacing Conve yor Chains Checking the condi tion of the conv eyor chains shou ld be part of t he routine main tenance schedu le for the coating sy stem . Worn or brok en chains should be repl …

9-4 Parts Replacement

9.7 Gaining Access to Coating System Components

In order to gain access to some areas of the coating system, it will be necessary to remove covers, doors,

and access panels. Figure 9-1 shows the location of these features.

WARNING! CAUTION!

Make sure that the coating system has been completely shut down before

attempting to remove any panel. Remove doors, covers, and panels carefully to

avoid damaging underlying components.

Figure 9-1 Removing the Upper Rear Access Panel

Figure 9-2 Removing the Middle Rear Access Panel

Parts Replacement 9-5

9.8 Replacing Conveyor Chains

Checking the condition of the conveyor chains should be part of the routine maintenance schedule for the

coating system. Worn or broken chains should be replaced immediately. Refer to Appendix C for a parts

list of conveyor components.

Tools and Materials Needed:

 Pliers  Phillips Head Screwdriver

 3/32-inch Hex Key  Removable Thread Locker (P/N 40-0019)

 Isopropyl Alcohol  Roller Chain, #25, NP (P/N 193721)

 Soft Cloth and Cotton Swabs  Master Link, #25 Chain (P/N 193722)

To replace the conveyor chains:

1. Perform a service shutdown as described in 5.11.2.4 Service Shutdown.

2. Move the dispensing head to the rear of the machine.

3. Use the manual width adjust to move the rear conveyor rail to achieve an approximate eight-

inch space between the front and rear conveyor rails.

4. Create slack in the chain by loosening the four mounting screws on the back of the motor

bracket and moving the bracket up and down until the desired slack is achieved (Figure 9-3).

Figure 9-3 Creating Slack in the Chain

Motor Bracket

Screws

9-6 Parts Replacement

5. Locate the master link and use the pliers to remove it as described below:

a. Remove the retainer clip (Figure 9-4).

b. Remove the female link (Figure 9-5).

c. Remove the master link (Figure 9-6).

Figure 9-4 Removing the

Retainer Clip

Figure 9-5 Removing the

Female Link

Figure 9-6 Removing the Master

Link (Male Link)

6. Remove any rail-mounted components that interfere with chain removal/replacement.

7. Remove the old chain by sliding it off the conveyor sprockets.

TIP It is recommended that you remove and replace one chain at a time to ensure that

all parts removed from each rail are re-installed in their exact same locations.

8. Use isopropyl alcohol and clean swabs to clean all metal surfaces that make contact with the

chain, including sprockets and rails.

9. Install the new chain onto the sprocket rail (Figure 9-7).

Figure 9-7 Installing the Chain on the Sprocket Rail