6
Parker Hannifin Corporation
Helac/Cylinder Division
Enumclaw, Washington USA
www.helac.com
PowerTilt Tilting Coupler
PT-4.5 Service & Repair Manual
HY34-1370
Disassembly
Disassembly
It is not necessary to remove the
valve block and cartridge unless
leakage is suspected.
the piston sleeve (3) and can be removed.
Gently tap the end of the shaft with a plastic
mallet and mandrel if needed.
7.
As in Step 6 above, before removing the
piston sleeve (3), mark the housing (1) ring
gear in relation to the piston sleeve outside
diameter gear with a marker as seen in the
photo below. Be sure to gently push the piston
sleeve (3) out of the housing (1) until the gear
teeth just come out of engagement with the
housing gear teeth. Then remove the piston
sleeve (3). Use a plastic mallet and mandrel
if necessary. Avoid scratching or denting the
inside of the housing bore.
8.
Remove all seals, bearings and thrust
washers from the end cap (4), shaft (2), piston
sleeve (3) and housing (1). Note their order
and orientation to aid assembly.
shaft; it must remain in the housing so that
gear timing marks can be located in Step 5.
5.
Locate the timing marks on the piston sleeve
(3) gearing and shaft (2). Every PowerTilt has
two sets of small punched timing marks that
indicate timing between the gear sets. One
set indicates the timing between the shaft (2)
and the piston sleeve (3) as seen in the photo
above (the shaft timing marks may be located
in the root or “V” of the gearing). The second
set indicates timing between the piston sleeve
and the housing (1) as seen in the photo
below.
6.
Prior to removing the shaft (2), use a felt
marker to highlight the punched timing marks
between the shaft and piston sleeve (3) as
seen in the photo below to simplify timing when
the PowerTilt is reassembled. Rotate the shaft
(2) counterclockwise until it disengages from
NOTICE
