Tool Release Piston (TRP) - Troubleshooting Guide

Transcription

1 Tool Release Piston (TRP) - Troubleshooting Guide LAST UPDATED: 11/3/218 Page 1 of 9 pages

2 Introduction 1. ROTARY UNION 2. SPRING RETAINER 3. COMPRESSION SPRING 4. SHCS 8-32 X 3/8 5. PROXIMITY SENSOR 6. SHCS 1/4-2 X 2 7. SWITCH MOUNT BLOCK 8. O-RING BUNA 9. SHCS 3/8-16 X 5 1. FITG HOSE BARB1/2 NPT1/4M STR BRASS 11. FITG NPT1/8M PLUG STL W/THREAD SEALANT 12. TRP HOUSING 13. SPACER UPPER 14. TRP PISTON 15. O-RING BUNA 16. O-RING 2-15 BUNA 17. VALVE CHECK NPT-1/8-F X NPT-1/8-F BRASS 18. O-RING VITON 19. SPACER LOWER 2. TRP SHAFT 21. TRP SUB-PLATE 22. TRP FORK SPACER 23. TRP FORK 24. WASHER 1/2 STEEL.18THK X 1.O 25. SHCS 1/2-13 X 3 1/ taper 2. 5-taper 3. 4-taper inline drive Page 2 of 9 pages

3 Symptom Table Page 3 of 9 pages

4 SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION The TRP does not activate when commanded. The solenoid is inoperable. The air volume is low. Parameter 71 is incorrect (CHC). Test the solenoid. Check the air system. Check the value of Parameter 71 The air volume is low. Check the air system. The retaining ring that holds the drawbar actuator pins is defective (Inline Spindle Only). Replace the spindle with the latest revision of the spindle, which uses a roll pin to retain the drawbar actuator pins. Alarm 134 TOOL CLAMP FAULT occurs on machines with M18.27 and lower. The bearingless union loosened from the center shaft (5 Taper Only). 1. Remove the TSC parts from the TRP. 2. Remove the TRP. 3. Tighten the 5 Taper union adapter to 1 ft-lbs (136 Nm). Use a 5/8" hex tool to hold the center shaft in position while you tighten the 5 Taper union adapter. Note: The spring retainer on the TRP energizes the TRP proximity-sensor. The spring retainer changes height when the 5 Taper union adapter loosens from the center shaft. 4. Install the TRP. 5. Make sure the spring retainer energizes the TRP proximity-sensor. 6. Install the TSC parts onto the TRP when the 5 Taper union adapter is tightened correctly. Alarm 134 TOOL CLAMP FAULT occurs on machines with M18.28 and higher. A ground wire is loose in the electrical cabinet. (Next Generation Control Only) Make sure all of the ground wires that are inside of the electrical cabinet are tight. Make sure all the of axis motor-cables are tight. The TRP hits the drawbar and makes a loud banging noise. The precharge regulator is not adjusted properly. Precharge pressure incorrect on a fixed regulator. Properly adjust the precharge regulator. Replace the fixed regulator. There is an air leak. Check air system and low air delay Parameter 76. The TRP does not push out enough to release the tool. The drawbar is damaged. The TRP pushout is not properly adjusted. Inspect the drawbar. Verify and adjust the drawbar height. The piston o-ring has no lubrication, or the piston/ bore or o-ring is damaged. Replace the TRP. Page 4 of 9 pages

5 The return spring is broken. Replace the TRP base assembly. The TRP retracts slowly. Alarm 13 TOOL UNCLAMPED Alarm 131 TOOL NOT CLAMPED. The humphrey valve is worn. The exhaust muffler is clogged. The piston o-ring has no lubrication, or the piston/ bore or o-ring is damaged. A worn humprey valve (quick exhaust valve) can cause air to leak into the piston and cause the TRP to retract slowly. Replace the humprey valve. Test the exhaust muffler. Inspect the piston o-ring. The inline spindle is seized. The inline spindle won't turn. The precharge solenoid is getting stuck due to contamination. Inspect the precharge solenoid for contamination. For CALM machines inspect solenoid manifold inside the lube panel for contamination. See Water Separator Filter section below. Solenoid Clean the solenoid valve. Press and hold the tool release. Check the voltage to the solenoid. It should have 12 VAC. If there is no power, make sure it has a good connection to the I/O PCB. If the connection to the I/O PCB is good, refer to SOLENOID - TROUBLESHOOTING GUIDE to troubleshoot the solenoid. Air Pressure Check the air pressure supply. Check the air volume supplied to machine. Refer to the Air Requirement section in the NEW MACHINE SETUP / PRE- INSTALLATION for required hose size and other instructions. Check for air leaks in supply hose / solenoid exhaust / TRP. Verify Parameter 76 Low Air Delay is set to 15. Parameter 71 - Classic Haas Control (CHC) Check the value of Parameter 71, DRAW BAR OFFSET. Page 5 of 9 pages

6 MODEL P71 VALUE MODEL P71 VALUE MODEL P71 VALUE DM/DT Mini Mill 111 VF1-VF4 833 EC S Mini Mill 666 VF2SS-VF4SS 555 EC16 4 Office Mill 12 VF5/4-VF12/4 666 ES OM1A, OM2A 112 VF3/5-VF12/5 4 GR 666 SR VM 111 GR48 Toolroom 111 VR MDC UMC 666 VS Precharge Regulator Adjust or replace the precharge regulator: Adjustable regulator [1] - Properly adjust the precharge regulator. If the precharge regulator is damaged and is unable to adjust, replace it. Fixed nonadjustable regulator [2] - Verify the pressure, replace the precharge regulator if pressure is incorrect. Drawbar Remove and inspect spindle drawbar for broken spring washers or any other damage. Inspect spindle drawbar for damaged o-ring seals (TSC machines only). Go to SPINDLE - DRAWBAR - TROUBLESHOOTING GUIDE to troubleshoot the drawbar. Page 6 of 9 pages

7 Return Spring If the return spring is broken, replace the TRP base assembly. Pushout 4T TSC Belt Drive Only - Inspect the TRP tool release bolt, or carbide tip for excessive wear or damage. Verify the spindle drawbar pushout and sensor adjustments. Adjust the height by adding or removing shims. Refer to the TRP SWITCH ADJUSTMENT PROCEDURE for more information. Exhaust Muffler Remove the exhaust muffler from the solenoid and test TRP operation. Replace the exhaust muffler if necessary. Page 7 of 9 pages

8 O-ring 4T Belt Drive Only - Remove the TRP and apply lubricant to the TRP housing [1]. Install the TRP on the machine and in the correct place. Cycle the machine. DO NOT ACTIVATE TRP WHEN THE TRP IS NOT IN PLACE, DAMAGE TO THE TRP MAY OCCUR. The TRP base is not serviceable due to the high spring pressure. If damaged, the assembly must be replaced. Page 8 of 9 pages

9 Water Separator Filter The filter in the water separator can come loose inside of the water separator casting. The filter moves around inside of the canister and breaks into small pieces. These pieces contaminate components in the pneumatic systems. You should always check this filter when troubleshooting any pneumatic problem. 1. Remove and replace the water separator filter [2] (P/N ; Muffler Poly 1 Micron NPT-3/8M). Put Sikaflex on the threads of the filter. Note: Use spark plug pliers or a similar tool to loosen and tighten the filter. 2. Remove and clean the casting [1], the Oring [3], the screen [4], and the cap [5] 3. Remove and clean the solenoids. 4. Remove and clean the air mufflers. 5. Remove and clean out the all of the pneumatic tubing with compressed air. Page 9 of 9 pages