Aimco UAT Series, Руководство по ремонту

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Disassembly and Reassembly of the Pulse Unit
(cont.)
Assembly
1. You will find all O-rings, Supporter Rings, and Springs needed for rebuild of the Pulse Unit in a Pulse Unit
Repair Kit (PRK). To order a PRK, you would order the model number of tool plus dash PRK (i.e., UAT-70-
PRK).
2.
Lubricate all O-rings with Pulstar Oil.
3.
Install the O-ring on the Relief Valve using the O-ring Install Fixture and install the Relief Valve into the
Liner lining up the slot in the Relief Valve with the hole in the Liner and install the Relief Valve Pin.
Note:
Be careful not to cut the O-ring on the Relief Valve.
4.
Install the Pressure Valve Spring Collar, Pressure Valve Spring and Pressure Value Body into Liner. Note:
Small end of spring goes towards the Pressure Valve Body.
5.
Install the Relief Valve Spindle into the Relief Valve and install the O-ring on the Relief Valve Spindle
(left-hand thread) and Supporter Ring into the Front Liner Plate.
Note: The Supporter Ring is not used on
the UAT-40, 50 & 60.
6.
Install two Locator Pins into the front of the Liner.
7.
Install the Anvil SU-ring and Supporter Ring into the Front Liner Plate and install the Front Liner Plate onto
the Liner.
Note: Make sure that you work the Relief Valve Spindle O-ring up into the Front Liner Plate by
turning the Relief Valve Spindle back and forth. Note: On the UAT-30D, 40, 50 & 60 series, you install the
Liner Casing Spacer onto the Liner. Install the Front Liner Plate after the Anvil and Driving Blades have
been installed into the Liner.
8.
Install the Driving Blade Springs, Driving Blades, and Driving Blade Rollers into the Anvil and into the
Driving Blade Install Fixture.
9.
Put the proper Anvil Sleeve Fixture over the drive end of the Anvil and install the Anvil into the Liner and
through the Front Liner Plate removing the Driving Blade Install Fixture. As you do this, make sure to keep
the Nylon piece of the Driving Blade Install Fixture tight against the Anvil.
10. Install two Locator Pins into the rear of the Liner, the Check Valve Spring and Check Valve Ball into the
back of the Anvil and the Relief Valve Ball and Relief Valve Spring into the back of the Relief Valve in the
Liner.
11. Install the O-ring onto the Rear Liner Plate and install the Rear Liner Plate onto the Liner. Note: If the
Check Valve Cover was removed from the Rear Liner Plate when reinstalling the Check Valve Cover back
into the Rear Liner Plate, make sure that the hole in the side of the Check Valve Cover is 180 degrees out
from the hole inside of the Rear Liner Plate, and apply a light coat of Loctite 626 to the Check Valve Cover
before installing.
12. Holding the hex end of the Rear Liner Plate in a vise, install the Front Liner Plate O-ring and now install the
Liner Casing over the Anvil and onto the assembly.
13. Clean the threads on the Liner Casing and Liner Casing Setter with a degreaser or Isopropyl Alcohol. Put a
small amount of thread locker (i.e., Loctite 243) on the Liner Casing Setter and install into Liner Casing.
Note: If you use Isopropyl Alcohol to clean the threads, it will cause the thread locker to set-up in about
10-15 minutes.