11.9 cu. in. 4-Bolt Hydraulic Spool Valve Geroler Motor
Visit www.princessauto.com for more information 9
8490096 V 3.04
REMOVING SCREWS AND BOLTS
The screws are held in place with cyanoacrylate glue or instant glue.
Heat the housing around the screws with a welding torch or heat gun
for approximately 5 to 10 seconds. The glue will release at a temperature
between 300 to 500 °F (149 to 260 °C). Remove heat as soon as the
screw is loose to avoid damaging the motor.
Blow loose debris and glue from the screw holes with dry air. The set glue
in the holes does not need to be removed, unless it interferes with
the screws.
Remove the cyanoacrylate glue left in the screw threads with a
combination of soaking the screws in acetone or methylene chloride and
working with a wire brush. Leave to dry before reinserting into
the housing.
Consult the manufacturer’s instructions on curing time when reapplying
the instant glue. Some instant glues can be combined with a curing agent
that will decrease the curing time.
WARNING! Follow the manufacturer’s Material Safety Data Sheet
instructions before handling cyanoacrylate glue, acetone or methylene
chloride. Avoid inhaling or coming in contact with all three. Become
familiar with first aid/medical instructions before using the glue
or solvents.
DISASSEMBLY
A plastic hammer may be required to loosen some parts after the motor
has been in service.
1. Remove the Woodruff Key (#10) by hand.
2. Clean the motor’s exterior of oil and debris. Ensure both Plugs
(#17) are still in place during cleaning.
3. Place the geroler motor in a vise with the flange face down. Close
the vise on either side of the flange. The vice should have soft jaws
or a protective material between the motor and jaws.
4. Remove the Inlet and Outlet Plugs (#17). Loosen with a 1/2 in.
wrench, then complete removal by hand.
5. Remove the Drain Plug (#29) with a 3/16 in. Allen wrench.
6. Remove the End Cover (#25) by loosening all Screws (#27) with a
1/2 in. wrench. Complete screw removal by hand.
7. Remove the geroler set as one unit. Do not separate the Stator
(#22), Roller (#23) and Rotor (#24) while removing them. Put aside
as a single unit.