Trebor 110R - Manual (Page 15)

MODEL 110R PUMP OPERATION / MAINTENANCE MANUAL PAGE 15

Remove tie bolt caps from both heads.

Remove un-tact flanged nuts from the tie bolt assemblies (Master Head side).
Using both 3/8” nut drivers. Leave tie bolts in place.

Lay the pump on the slave head side.

Remove the master head.

Remove the main seal and diaphragms.

Remove the main transfer tube and seal.

Remove the pilot transfer tube seal.

Remove the body assembly.

Remove the pilot transfer tube and seal and the second main transfer tube
and seal.

Remove the slave side set of diaphragms and main seal.

Remove tie bolts.
NOTE: All polypropylene and fluoroplastic parts, when disassembled, should be
thoroughly washed and be free from acid residue for handling purposes.
4.7.a Body Disassembly

Remove check bore caps using ½” pin tool and remove seals.

Remove sleeves with sleeve removal tool, check balls and O-rings.

Unthread one push plate from the shaft.

Remove remaining push plate and shaft from body.

Unthread second push plate from shaft.

Remove shaft seals from the shaft bore; taking care not to damage the shaft
bore or shaft seal grooves.
4.7.b Head Disassembly

Remove the shuttle cap from the master head.

Remove the detent and shuttle spool. See Section 4.4 for shuttle detail. (A
small blast of air into the air inlet port will normally cause the detent and
shuttle spool to pop out.)

Remove the shuttle sleeve from the shuttle bore.
NOTE: The shuttle spool, sleeve and the exterior of the detent may be cleaned
with isopropyl alcohol. Do not disassemble or remove lubricant from detent. If
lubricant is lost, it is necessary to replace the detent to avoid damage to the
shuttle spool.
 Remove the pilot valves from the master and slave heads, with 1/2” nut
driver.