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Tram sprocket ..............................................................5
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tram sprocket installation
To install the tram sprocket:
1. The manufacturer recommends ordering a pre-assembled sprocket. If you choose to order a pre-assembled sprocket, go directly to step 16. Consult your service representative to order a pre-assembled sprocket.
2. Install a spherical bearing into one of the bearing sleeves (Fig. 191).
3. Install the o-ring into the outside channel of the bearing sleeve.
IMPORTANT! When the bearing sleeve is inserted into position, the o-ring forms a seal between the sleeve and the piece that holds it.
4. Install a Duo-Cone seal into the seal sleeve (see Duo-cone seal installation notes in this chapter). The rubber side of the seal should face toward the sleeve; the metal ring of the seal should face outward.
Fig. 191: Bearing/seal sleeve assembly
Seal sleeve Spherical bearing
Duo-cone seal
Bearing sleeve O-ring
Metal ring Rubber seal
5. Insert the seal sleeve into the bearing sleeve.
6. Insert and tighten the three set screw into the bearing sleeve to secure the seal sleeve in the bearing sleeve.
7. Insert the bearing/seal sleeve assembly into position at the rear of the sprocket bay of the tram case.
8. Install the two Duo-Cone seals into the channel in each end of the sprocket. The rubber side of the seals should face into the sprocket channel; the metal rings of the Duo-Cone seals should face outward.
9. Insert the end of the sprocket into the seal sleeve so that it seats into the spherical bearing. Push the sprocket until the metal rings of the Duo-Cone seals are securely against each other.
10. Install the other spherical bearing into the remaining bearing sleeve. ________________________________________________________________ 5.240 CM220 Continuous Miner
11. Install the o-ring into the outside channel of the bearing sleeve.
12. Install a Duo-Cone seal into the remaining seal sleeve. The rubber side of the seal should face toward the sleeve; the metal ring of the seal should be facing outward.
13. Insert the seal sleeve into the bearing sleeve.
14. Insert and tighten the three set screws into the bearing sleeve to secure the seal sleeve in position.
15. Slide the bearing/seal sleeve assembly onto the end of the sprocket. Push the sleeve assembly until the end of the sprocket seats into the spherical bearing and the metal rings of the Duo-Cone seals are securely against each other.
16. Install the assembled sprocket assembly.
17. Replace the bearing carrier over the bearing sleeve and end of the bearing sleeve and end of the sprocket.
18. Apply anti-seize to all the bearing fits on the sprocket, then use the planetary shaft to support the weight of the sprocket during installation. Start the sprocket bearing in evenly, then install the bearing carrier and start the front bearing in evenly.
19. Install the Secondary planetary gear assembly (see the Secondary planetary gear assembly removal and installation procedure in this chapter).
20. While feeding the tram track from the front of the miner (near the idler), pull on the tram track guide wires until a link of the tram track engages the sprocket.
21. Connect the trailing cable to energize the miner.
WARNING! Stand clear of the miner when using the motor to pull the tram track through the tram case.
22. Use the tram motor to slowly rotate the sprocket and pull the tram track through the case until the end appears out the bottom.
WARNING! Double check that the links of the tram track are correctly seated onto the tram drive sprocket. Improper engagement of the tram track links onto the sprocket can cause serious mechanical damage.
23. Disconnect the trailing cable to de-energize the miner. Follow all Federal and mine regulations for lockout/tagout.
WARNING! Follow all federal and mine lockout/tagout regulations. Failure to do so could result in machine damage or serious injury or death to personnel.
24. Remove the guide wires from the tram track. ______________________________________________________________
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25. Connect the two ends of the tram track and using the hammer and punch, insert the track pin to secure the two track links together.
26. Using the hammer and punch, insert the two roll pins into the track pin to secure the pin in the links.
27. Adjust the tram track tension (see Tram track adjustment procedure in the Adjustment procedures section of this chapter).
28. Close the front rub rail cover and replace the hex head capscrews and lock washers that secure the front rub rail to the tractor frame.
29. Replace the tram rub rail between the two adjacent rub rails and secure it with the two rub rail pins.
30. Connect the trailing cable to energize the miner.
31. Remove blocking.
WARNING! You could be seriously injured or killed by falling loads. Follow mine procedure to remove blocking devices and use caution.
tram track front idler removal Tram track front idler removal and installation
To remove the tram track front idler:
1. Raise the gathering head and cutter head assemblies to their highest points and place blocking underneath. Lower the assemblies onto the blocking. The gathering head and cutter head must be blocked high enough to allow the idler assembly to be removed from the tractor frame’s idler slide channel.
WARNING! You can be seriously injured or killed by falling loads. Observe the safe working load limits of all blocking devices.
2. Disconnect the trailing cable to de-energize the miner. Follow all Federal and mine regulations for lockout/tagout.
WARNING! Follow all federal and mine lockout/tagout regulations. Failure to do so could result in machine damage or serious injury or death to personnel.
3. Remove the hex head capscrew and lock washer that secure the front rub rail to the tractor frame and open the front rub rail cover.
4. Attach the grease gun to the front idler take-up cylinder fitting (Fig. 192) and pump grease into the take-up cylinder to extend the cylinder and remove pusher plate pressure on the idler shims.
5. Remove all the idler adjustment shims and store the shims in a safe place.
6. Open the pressure release valve for the front idler take-up jack and allow the cylinder to contract.
Fig. 192: Idler take-up cylinder
Pressure release valve Idler take-up cylinder
Grease fitting
Idler adjustment shims
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7. Locate a tram track link near the near the idler and remove roll pins and link pin.
8. Using the hammer and punch, remove the tram track pin to disconnect the links and separate the track. Store the track pin in a safe place.
Fig. 193: Tram track removal
Roll pins Separate track here
Tram track pin
9. Slide the front idler assembly out of the idler slide channel (Fig. 194).
Fig. 194: Front idler assembly removal
Pressure relief valve Take-up cylinder
Idler slide channel
Front idler assembly
10. Slide the pusher plate and the spacer pusher out of the idler slide channel to inspect for damage (Fig. 195).
Fig. 1985 Pusher plate removal
Pressure relief valve Take-up cylinder Spacer pusher
Pusher plate
tram track front idler installation
Idler slide channel
To install the tram track front idler:
1. Insert the pusher spacer (Fig. 196) into the tractor frame’s idler slide channel so that it rests on the slide block support and is positioned against the take-up jack.
2. Ensuring that the channel guides face away from the take-up jack, insert the pusher plate into the idler slide channel until it touches the pusher spacer.
Fig. 196: Pusher plate installation
Take-up cylinder
Pressure relief valve Pusher spacer
Pusher plate
Idler slide channel
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3. Insert the block slides of the front idler assembly (Fig. 197) into the idler slide channel. The relief valve of the slide blocks must be oriented toward the front of the miner. The grease fittings must be oriented to the outside of the miner.
4. Push the front idler assembly into the slide channel until the block slides are against the pusher plate channel guides.
Fig. 197: Front idler installation
Pressure relief valve Take-up cylinder
Front idler assembly
Idler slide channel
Pusher plate channel
Block slide
Relief
5. Connect the two ends of the tram track and using the hammer and punch, insert the track pin to secure the two track links together.
6. Using the hammer and punch, insert the two roll pins into the track pin to secure the pin in the links.
7. Adjust the tram track tension (see Tram track adjustment procedure in the Adjustment procedures section of this chapter).
8. Close the front rub rail cover and replace the hex head capscrews and lock washers that secure the front rub rail to the tractor frame.
front idler cylinder removal Front idler take-up cylinder removal and installation
To remove the front idler take-up cylinder
1. Lower the conveyor tail section until it is level with the floor.
2. Lower the gathering head and cutter head until these two assemblies touch the floor.
3. Disconnect the trailing cable to de-energize the miner. Follow all Federal and mine regulations for lockout/tagout.
WARNING! Follow all federal and mine lockout/tagout regulations. Failure to do so could result in machine damage or serious injury or death to personnel.
4. Remove the hex head capscrew and lock washer that secures the front rub rail to the tractor frame and open the front rub rail cover.
5. If installed, remove the hex head capscrews that secure the fill plate to the frame and remove the fill plate. The cylinder may have to be collapsed before the fill plate can be removed.
6. Locate the front idler take-up cylinder bracket assembly (Fig. 198) which is mounted to the rear of the idler shim channel.
Fig. 198: Front idler take-up cylinder bracket
Bracket assembly
Idler shim channel
