Trebor 50D Maxim - Manual (Page 18)

PAGE 18 MAXIM 50D PUMP OPERATION / MAINTENANCE MANUAL

Using pH test strips evaluate whether base has any contamination in air
passages, especially the muffler area. If present, neutralize using best
methods prior to disassembly.

Unscrew and remove muffler assembly from base using the 1”pin tool.

Unscrew and remove the shuttle cap and seal.

Remove shuttle spool assembly from detent adapter.

Remove detent legs and detent ring from spool.

Remove detent adapter from base using 3/4” pin tool.

Do not remove the shuttle sleeve from the shuttle bore.
4.7.d Cleaning

Gently spray clean or dunk rinse all components with DI water to remove any
trace materials remaining after disassembly.
4.8 ASSEMBLY
Prior to beginning assembly, inspect all parts to ensure they are clean and dry.
Wear clean protective gloves. Precautions should be exercised to prevent
contaminating any of the air chamber surfaces with chemicals during handling.
4.8.a Control Base Assembly

Thread detent adapter into shuttle bore using 3/4” pin tool. (Detent adapter
must be flush against base as shown.) torque to 45in-lbs.
Shuttle spool assembly instructions:

Hold shuttle spool (item 1) upright and align slot and in detent legs (item 2)
with notch on shuttle spool, see Fig 1.

Apply pressure upward onto base of detent legs with thumb and index finger,
as shown in Fig. 2.

Tilt the detent ring (item 3) over one of the legs, and align the groove on the
inside of the detent ring with the end of the detent leg. 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 (see Figure 4-3).