JLG 24RS Service Manual - Manual (Page 58)

SECTION 3 - CHASSIS & TURNTABLE
3-20 – JLG Lift – 3121287
Tightening and Torquing Bolts
If an air impact wrench is used to tighten bolts, extreme care
should be taken to ensure the bolts are not tightened beyond
their specified torque. The following steps describe how to
tighten and torque bolts or socket head cap screws in a bolt
circle.
1. Tighten (but do not torque) bolt A until snug.
2. Go to the opposite side of the bolt circle and tighten
bolt B until equally snug.
3. Crisscross around the bolt circle and tighten the remain-
ing bolts.
4. Use a torque wrench to apply the specified torque to
bolt A.
5. Using the same sequence, crisscross around the bolt cir-
cle and apply an equal torque to the remaining bolts.
Assembly
CARRIER SUBASSEMBLY
1. Apply a liberal coat of grease to the bore of the cluster
gear (3F). This will enable the needle rollers (3C) to be
held in place during assembly.
2. Install one half of the inside of the cluster gear (3F) with
16 needle rollers (3C).
NOTE: The last roller installed must be installed end wise. The end
of the last roller must be placed in between the ends of the
two rollers that form the space, and then slid parallel to the
other rollers into place.
3. Place one spacer (3D) on top of the needle rollers (3C)
inside the planet gear (3F).
4. Install the other half of the cluster gear (3F) with16 nee-
dle rollers (3C).
5. Place the carrier (3A) into tool fixture so that one of the
roll pin holes is straight up.
6. Start the planet shaft (3E), with the end opposite the roll
pin hole first, through the planet shaft hole in carrier
(3A), making sure that the roll pin hole with the large
chamfer in the planet shaft is straight up.
7. Using ample grease to hold them in position, locate the
thrust washer (3B) onto each side of interior carrier wall
with tangs located into slots in carrier pads.
8. With the large end of the cluster gear (3F) facing the roll
pin hole in the carrier, place the cluster gear into posi-
tion in the carrier (3A) and push the planet shaft (3E)
through the cluster gear (3F) without going all the way
through the carrier (3A).
9. Finish sliding the planet shaft (3E) into the carrier (3A)
until the roll pin holes of the planet shaft and carrier are
aligned. Align the roll pin hole using a 1/8 inch diameter
punch.
NOTE: The chamfer on the roll pin hole should be towards the roll
pin hole in the carrier.
10. Drive the roll pin (3G) through the carrier (3A) and into
the planet shaft (3E) until the roll pin (3G) is flush with
the bottom of the cast slot in the carrier (3A) outside
diameter at the thrust washer (3B) tang. Use a ¼" pin
punch to make sure the roll pin (3G) is flush in the slot.
11. Repeat Steps 6 through 10 for the remaining two cluster
gears (3F).