![background image](http://html.mh-extra.com/html/thermo-king/x214/x214_overhaul-manual_1104332048.webp)
Disassembly and Reassembly
47
Oil Pump
Removal
1. Remove the oil pressure regulator and oil
pickup plug.
2. Check the operation of the oil pressure
regulator by pressing on the plunger and
checking the movement. The plunger should
move free and smooth. You should feel
constant resistance from the plunger spring
throughout the entire stroke of the plunger.
3. Remove the oil pump cover.
4. Remove the oil pressure regulator. Use a 3/4
in. wrench to remove the regulator from the
pump cover.
Cleaning
a. Examine the valve for any dirt, chips or
other accumulation.
b. If it becomes necessary to disassemble the
valve, remove the spring clip using snap
ring pliers.
c. Clean the parts using approved solvent.
The solvent must be nonchlorinated.
d. Coat the parts using clean refrigeration oil
and reassemble.
5. Install oil pressure regulator.
a. Replace the o-ring seal.
b. Apply clean refrigeration oil to the valve
by coating or dipping.
c. Screw the regulator into the housing.
d. Tighten to 23 ft-lb (31 N•m).
6. Remove the outer wear plate and the gerotor
assembly. See “Figure 64: Oil Pump
Components” on page 48.
NOTE: Because of the close fit of the oil
pump assembly, the wear plates must be
removed very carefully or they will bind in
the housing. If they bind, square them up by
tapping very lightly and attempt to remove
again.
CAUTION: The oil pump assembly is a
precision device with close clearances. All
parts must be kept clean, the work area
must be kept clean, and oil applied to the
pump must be clean. Contamination by
dirt, debris, chips, or burrs could cause the
oil pump to fail prematurely. Parts must be
protected from nicks and scratches.
1.
Oil Pressure Regulator
2.
Oil Pickup Plug
Figure 62: Oil Pump Cover
1
2
AGA556
1.
Regulator
2.
O-ring
3.
Spring
4.
Plunger
5.
Snap Ring
Figure 63: Disassemble View of
Oil Pressure Regulator
1
2
3
4
5