JLG 340AJ, Service And Maintenance Manual

Page: 91 / 370

SECTION 3 - CHASSIS & TURNTABLE
3121259 – JLG Lift – 3-49
4. Assemble six vanes, or as many vanes that will readily
assemble into the stator vane pockets.
EXCESSIVE FORCE USED TO PUSH THE ROTOR VANES INTO PLACE COULD
SHEAR OFF THE COATING APPLIED TO THE STATOR VANE POCKETS.
5. Grasp the output end of coupling shaft (12) with locking
pliers or other appropriate turning device and rotate
coupling shaft, drive link and rotor to seat the rotor and
the assembled vanes into stator, creating the necessary
clearance to assemble the seventh or full complement
of seven vanes. Assemble the seven vanes using mini-
mum force.
6. Remove the two assembled bolts (1) if used to retain sta-
tor and wear plate.
Go to assembly procedure #15, to continue assembly.
Two Piece Stator Construction
A disassembled rotor set (8) that cannot be readily assembled
by hand and has a two piece stator can be assembled by the
following procedures.
1. Place stator half onto wear plate (9) with seal ring
(4) side down, after following motor assembly proce-
dures 1 through 13. Be sure the seal ring is in place.
2. Align stator bolt holes with wear plate and
housing bolts and turn two alignment studs
finger tight into bolt holes approximately 180 degrees
apart to retain stator half and wear plate stationary.
3. Assemble rotor, counterbore down if applicable, into
stator half, and onto wear plate (9) with rotor splines
into mesh with drive link (10) splines.
NOTE: Use any marking you applied to rotor set components to
reassemble the components in their original relationship
to ensure ultimate wear life and performance.
4. Assemble six vanes, or as many vanes that will readily
assemble into the stator vane pockets.
EXCESSIVE FORCE USED TO PUSH THE ROTOR VANES INTO PLACE COULD
SHEAR OFF THE COATING APPLIED TO THE STATOR VANE POCKETS.
5. Grasp the output end of coupling shaft (12) with
locking pliers or other appropriate turning device and
rotate coupling shaft, drive link and rotor to seat the
rotor and the assembled vanes (8C) into stator half, cre-
ating the necessary clearance to assemble the seventh
or full complement of seven vanes. Assemble the seven
vanes using minimum force.
6. Place second stator half on a flat surface with seal ring
groove up. Apply a small amount of grease to a new seal
ring (4) and assemble it into stator half ring groove.
7. Assemble the second stator half over the two alignment
studs and rotor with seal ring side down onto the first
stator half aligning any timing marks applied for this
purpose.
IF THE STATOR HALF (8B) IS A DIFFERENT HEIGHT (THICKNESS) THAN STATOR
HALF (8D) THE STATOR VANES (8C) OR (8E)OF THE SAME LENGTH (HEIGHT) AS
THE STATOR HALF MUST BE REASSEMBLED IN THEIR RESPECTIVE STATOR
HALF FOR THE ROTOR SET TO FUNCTION PROPERLY.