5 minute read
When head has reached bottom, release
SETTING TRAM CLEANUP AND SUMP SPEEDS USING EIMCO CURRENT GENERATOR SETTING TRAM CLEANUP AND SUMP SPEEDS USING EIMCO CURRENT GENERATOR
CAUTION: Before setting any tram speeds, the miner CAUTION: Before setting any tram speeds, the miner must be raised from ground or wire numbers must be raised from ground or wire numbers 41 and 51 must be removed from the tram 41 and 51 must be removed from the tram interface box. This will prevent the miner interface box. This will prevent the miner from tramming. When connecting any test from tramming. When connecting any test equipment,,be sure power is OFF. equipment"be sure power is OFF.
- CONNECTING CURRENT GENERATOR - CONNECTING CURRENT GENERATOR 1. Connect a 120 V AC power source to the current generator 3-prong plug. 1. Connect a 120 V AC power source to the current generator 3-prong plug. This can be tapped at terminal numbers 14 and 79 located on the tram interface box terminal strip. This can be tapped at terminal numbers 14 and 79 located on the tram interface box terminal strip. 2. Remove wire numbers 196 and 197 from the tram interface box terminal strip. 2. Remove wire numbers 196 and 197 from the tram interface box terminal strip. 3. Connect the current generator 2-prong plug to the tram interface box, numbers 196 and 197. 3. Connect the current generator 2-prong plug to the tram interface box, numbers 196 and 197. 4. Be sure power switch is in the OFF position and the adjustable dial is set at ZERO. 4. Be sure power switch is in the QEE position and the adjustable dial is set at ZERO.
- CONNECTING VOLT-OHM METER TO TRAM INTERFACE BOX (USE DIGITAL METER ONLY)
The left and right tram voltages must be adjusted separately. Left and right tram reference voltages must be matched. The left and right tram voltages must be adjusted separately. Left and right tram reference voltages must be matched. - To check left tram reference voltage, connect VOM to terminals 41 and D42 (common) on interface box. - To check left tram reference voltage, connect YOM to terminals 41 and D42 (common) on interface box. - To check right tram reference voltage, connect VOM to terminals 51 and D52 (common) on interface box. - To check right tram reference voltage, connect YOM to terminals 51 and D52 (common) on interface box.
- SETTING TRAM SPEEDS
- SETTING TRAM SPEEDS
Before setting the cleanup and sump tram reference voltages, make sure the Before setting the cleanup and sump tram reference voltages, make sure the maximum high tram speed reference voltage is set correctly at 2.5 V DC with maximum high tram speed reference voltage is set correctly at 2.5 V DC with output armature voltage at 350 V DC at each tram motor. Observe the above output armature voltage at 350 V DC at each tram motor. Observe the above cautions before applying power to the machine. The pump motor must be running for all tests made. cautions before applying power to the machine. The pump motor must be running for all tests made. - SETTING LEFT TRAM CLEANUP SPEED AND SUMP SPEED - SETTING LEFT TRAM CLEANUP SPEED AND SUMP SPEED
1. Move the current generator power switch to the ON position. 2. Move the left tram joystick from a neutral position to the full ON
position. . A VOM reading of 2.5 V DC should be present at terminal 41.
1. Move the current generator power switch to the ON position. 2. 110ve the left tram joystick from a neutral position to the full ON posi ti on. A YOM readi ng of 2.5 V DC shou 1 d be present at termi na 1 41. 3. Apply 1/2 amps at 196 and 197. This will cause the 2.5 V DC at terminal 41 to reduce to 1.25 V DC (cleanup). 3. App ly 1/2 amps at 196 and 197. Th i s wi 11 cause the 2.5 V DC at terminal 41 to reduce to 1.25 V DC (cleanup). 4. Apply 2.5 to 4.5 amps to 196 and 197. This will reduce the 1.25 V DC at terminal 41 to .55 V DC (sump). 4. Apply 2.5 to 4.5 amps to 196 and 197. This will reduce the 1.25 V DC at terminal 41 to .55 V DC (sump). 5. Return generator adjustable dial to zero and turn power switch to OFF position. 5. Return generator adjustable dial to zero and turn power switch to OFF position.
- SETTING RIGHT TRAM CLEANUP SPEED AND SUMP SPEED - SETTING RIGHT TRAM CLEANUP SPEED AND SUMP SPEED 1. Move the current generator power switch to the ON position. 1. Move the current generator power switch to the ON position. 2. Move the right tram joystick from a neutral position to the full ON position. A VOM reading of 2.5 V DC should be present at terminal 51. 2. 110ve the right tram joystick from a neutral position to the full ON position. A YOM reading of 2.5 V DC should be present at terminal 51. 3. Apply 1/2 amps at 196 and 197. This will cause the 2.5 V DC at terminal 51 to reduce to 1.25 V DC (cleanup). 3. Apply 1/2 amps at 196 and 197. This will cause the 2.5 V DC at terminal 51 to reduce to 1.25 V DC (cleanup). 4. Apply 2.5 to 4.5 amps to 196 and 197. This will reduce the 1.25 V DC at terminal 51 to .55 V DC (sump). 4. Apply 2.5 to 4.5 amps to 196 and 197. This will reduce the 1.25 V DC at terminal 51 to .55 V DC (sump). 5. Return generator adjustable dial to zero and turn power switch to OFF position. 5. Return generator adjustable dial to zero and turn power "switch to OFF position.
The voltage settings for cleanup and sump are factory settings., These voltage settings can be adjusted to suit mining conditions. IfAhe need to readjust the voltage is necessary, trim pots are located inside the tram interface box. The voltage setti ngs for cl eanup and sump are factory setti ngs. These voltage settings can be adjusted to suit mining conditions. IfCthe need to readjust the voltage is necessary, trim pots are located inside the tram interface box. NOTE: If the miner does not track properly after reference voltages are adjusted, do not readjust the voltages. Look for excessive looseness of a crawler, binding in the traction drive train, missing bit holders, or bits on the cutterhead. NOTE: If the miner does not track properly after reference voltages are adjusted, do not readjust the voltages. Look for excessive looseness of a crawl er, bi ndi ng in the tracti on dri ve trai n, missing bit holders, or bits on the cutterhead.
