TIE BOLT TORQUE The tie bolts on the pump are tightened before leaving the factory. However, relaxation may occur due to handling, material creep, or other unforeseen events. Trebor recommends that all eight tie bolts be re-tightened upon pump install. The following procedure should be used: 1.
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2. Although extensive efforts are made to deliver pumps to our customers completely dry, new pumps may contain residual moisture from their final DI water test. Recommended Maximum Operating Levels: Maximum supply CDA/N2 pressure: 80 psig (0.55 MPa) Maximum fluid temperature: 212°F (100°C) PAGE 4 MEGA 120D PUMP OPERATION / MAINTENANCE MANUAL...
Connect fiber optic cable to sensor (NOTE: Minimize bends in fiber optic cable to 2” radius minimum to help ensure optimum signal strength.). Fiber optic cable can be cut to desired length using the cable cutter provided. PAGE 6 MEGA 120D PUMP OPERATION / MAINTENANCE MANUAL...
The data is intended to aid in system design and should be used for general reference only. Figure 3-1 PAGE 8 MEGA 120D PUMP OPERATION / MAINTENANCE MANUAL...
If the pump has exceeded its useful life and cannot be rebuilt, the customer may elect to purchase a new Trebor pump. If the customer chooses not to rebuild or replace the pump, a $150.00 evaluation charge will be required.
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Shaft Bushing Shaft (High Suction Applications) Shaft Diaphragms and Main Seal Quick Exhaust Seal Check Balls and O-Rings Check Balls and O-Rings (High Suction Applications) Exhaust Muffler Media Distribution Pilots I=Inspect, R=Replace MEGA 120D PUMP OPERATION / MAINTENANCE MANUAL PAGE 11...
Do not remove the shuttle sleeve assembly from the shuttle bore. • Remove the muffler spool and muffler pads from each head. • Remove quick exhaust ports from heads. • Remove quick exhaust seals. • Remove remote exhaust plugs (if necessary). PAGE 16 MEGA 120D PUMP OPERATION / MAINTENANCE MANUAL...
The shoulder is located in the center of the pilot valve body. • Thread the pilot valve assembly into the pilot bore of the head as shown in Figure 4-3. Tighten to 25 in-lbs. Do not over tighten. MEGA 120D PUMP OPERATION / MAINTENANCE MANUAL PAGE 17...
Tilt the other side of the ring down, expanding it slightly, so that the other detent leg snaps into the detent ring groove. See Fig. 3. The completed assembly should look like Fig. 4. PAGE 18 MEGA 120D PUMP OPERATION / MAINTENANCE MANUAL...
Install the seal onto seal groove shoulder of the shuttle cap. • Thread shuttle cap onto detent adapter. Tighten to 40 in-lbs. ATTENTION: Threads should be snug. Do not over tighten. MEGA 120D PUMP OPERATION / MAINTENANCE MANUAL PAGE 19...
Install the discharge sleeve. The edge of the non-threaded part of the check bore should be approximately flush with the top of the discharge sleeve. • See Figure 4-7 for the proper order of check assembly installation. PAGE 20 MEGA 120D PUMP OPERATION / MAINTENANCE MANUAL...
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NOTE: The suction sleeves are shorter than the discharge sleeves. • Insert the gasket seal • Thread on the check port plug and tighten to 120 in-lbs. • Repeat process for second check bore. MEGA 120D PUMP OPERATION / MAINTENANCE MANUAL PAGE 21...
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Tighten push plate to 48 oz.-in, and then rotate CW until locking screw hole is aligned with the next available hole in shaft. The first push plate can be visually aligned separate from the body. • Install push plate locking screw. Tighten to 12 oz.-in. PAGE 22 MEGA 120D PUMP OPERATION / MAINTENANCE MANUAL...
Place two O-rings onto shuttle transfer tube. • Place the main seal O-ring into the formed groove of the slave head. • Place a second main transfer tube and O-ring into slave head. MEGA 120D PUMP OPERATION / MAINTENANCE MANUAL PAGE 23...
Turn off Air Supply and allow the pump to purge for 5 minutes. 4.9.c Dry Suction • 20 psig Supply Pressure Target • Record Suction Value • Target = 10 in-Hg. PAGE 24 MEGA 120D PUMP OPERATION / MAINTENANCE MANUAL...
Check bore cap. Tighten, or remove and replace seal. Ruptured diaphragm(s) can result in Replace diaphragms, and any parts that may have been fluid leaks through air exhaust port. damaged by fluid exposure. MEGA 120D PUMP OPERATION / MAINTENANCE MANUAL PAGE 25...
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Check ball(s) not seating. Check O-rings for damage; replace if necessary. Make sure check balls move freely in sleeves. Pilot transfer leak. Tighten tie bolts to 80 in-lbs. Replace transfer seals. PAGE 26 MEGA 120D PUMP OPERATION / MAINTENANCE MANUAL...
WARRANTY AND EXCLUSIONS See the Trebor Standard Limited Warranty at https://www.treborintl.com/sites/default/files/TreborStandardLimitedWarranty.pdf MEGA 120D PUMP OPERATION / MAINTENANCE MANUAL PAGE 27...
4) Press suction sleeve (BL003) into check bore of pump body using sleeve insertion tool (T0172). 5) Insert o-ring (98004258), check ball (98004255), and discharge sleeve (BL004-01) into check bore of pump body. MEGA 120D PUMP OPERATION / MAINTENANCE MANUAL PAGE 29...
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(T0148) and drive extension (T0182) as shown. 10) Torque check sleeve plug (BL029) to 35 in-lbs. 11) Install check port seal (BL007-01) and check cap (BL006-01) as shown. 12) Torque check cap (BL006-01) to 120 in-lbs. PAGE 30 MEGA 120D PUMP OPERATION / MAINTENANCE MANUAL...
MAGNETIC SHUTTLE ADDENDUM Conversion Kits (Maxim 50D, Evolve 55D, Mega 960D & Mega 120D) KUL0131 – Converts Standard Pumps to Magnetic Shuttle KUDP-C-2 – Converts Pumps with Cycle Probe to Magnetic Shuttle Rebuild Kit Item Number Changes KR50D-00-B KR50D-00-C KRE55D-00-A...
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