Manual 36532 DYNA 70025 Integrated Actuator
2 QCC LLC
Installing New Integrated Actuator Cover Assembly
1. Install new cover seal (item 2) into the groove of the integrated actuator cover
assembly as shown in Figure 2.
2. Align and hold the metering valve drive coupling parallel to the
side of integrated actuator cover as shown in Figure 3.
3. Position the integrated actuator cover assembly into the top of
the pump while holding the metering valve drive coupling
parallel to the pump body. Slightly lift the front portion of the
integrated actuator cover as shown in Figure 4.
4. Carefully slide the integrated actuator cover toward the rear of
the pump until the horseshoe portion of the metering valve
drive coupling contacts the pump’s governor linkage hook as
shown in Figure 5. Once contact has been made, continue
moving the integrated actuator cover in the same
direction until the mounting holes between the integrated
actuator cover and the pump body are aligned.
CAUTION: Failure to properly install the metering drive
coupling to the pump’s governor linkage can result in serious
damage.
5. Retrieve the three cover screws from the original governor
control cover. Assemble integrated actuator cover to the
pump body with these screws. Tighten to 35-45 lbs./in.
6. Install a new O-ring (item 3), on the return line connector
assembly retained from the original governor control cover.
Apply a light coating of all-purpose grease to the O-ring and
install connector into the 7/16-20 UNF-2A threaded hole
located in the integrated actuator cover.
Tighten to 43–53 lbs./in. See CAUTION below.
CAUTION: If the return line connector is a 7/16-20 UNF-
2A, Step 2 can be completed. If the return line connector
is not 7/16-20 UNF-2A, there are two possible solutions:
OPTION 1
A Stanadyne 21251 return line connector may be
used to replace the return line connector assembly
on the return fuel line.
OPTION 2
A Stanadyne 24509 connector body can be used to
mate the 1/8-27 NPT return line connector assembly
to the 7/16-20 UNF-2A threaded hole located in the
integrated actuator cover.
7. Install the fuel return line to the return line connector. Hold
return line connector in place and tighten fuel return line to
engine manufacturer’s specification.
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