JLG 110HX Service Manual - Manual (Page 112)

SECTION 2 - PROCEDURES
2-88 – JLG Lift – 3120864
Turntables 4620044 and 4620078
1. Removal.
a. Fully retract boom.
b. Remove rear turntable cover.
c. Remove five (5) nuts and jam nuts from beneath
turntable which attach to turntable spring bolts.
d. If necessary, remove bolts which secure load
management switches to mounting bracket and
allow switches to hang freely.
WRAP MASKING TAPE AROUND THE LOAD MANAGEMENT
SWITCHES TO INSURE THAT THE SWITCHES WILL STILL BE
OPERABLE.
e. Position boom to horizontal.
f. Remove five (5) bolts and turntable springs from
turntable.
2. Installation.
a. Position boom to horizontal.
b. Install five (5) bolts and turntable springs onto
turntable.
c. Install five (5) nuts and jam nuts on turntable
spring bolts.
d. Extend boom to cutoff (white tape) position then
retract boom until turntable raises 1/4 in. (6.4
mm) from cutoff position, measured at spring
area.
e. Snug jam nuts, then fully retract boom.
f. Torque jam nuts to 75 ft. lb. (10.4 kgm), then
tighten nuts.
g. If removed, install load management switches
on mounting brackets.
h. Position boom to horizontal. Refer to paragraph
2-31 and adjust load management switches as
required.
2.34 PUMP COUPLING CONVERSION
PROCEDURES
The following procedures are provided to assist in the
conversion from a solid pump coupling to a Lovejoy or
Hayes pump coupling.
Lovejoy Coupling
1. Separate coupling disc and hub and align plastic
disc on flywheel with webbing facing flywheel. Install
attaching bolts and lockwashers and torque bolts to
30 ft. lb. (41 Nm).
2. Attach pump mounting plate adapter to bell housing
of engine and secure with bolts and lockwashers.
3. Slide coupling hub onto pump shaft bottoms out on
roll pin (located inside hub). Secure hub onto shaft
by torquing torque screws to 22 ft. lb. (30 Nm).
4. Insert coupling hub (now affixed to pump shaft)
through pilot bore in pump mounting plate. Align
coupling hub and disc, push pump into position and
secure with bolts and lockwashers.
Hayes Coupling
1. Install pump coupling on flywheel and secure with
bolts and lockwashers. Torque bolts to 30 ft. lb. (41
Nm).
BEFORE ASSEMBLING PUMP COUPLING AND PUMP, BE SURE
TO COAT INTERNAL SPLINES OF COUPLING AND EXTERNAL
SPLINES OF PUMP SHAFT WITH TEXACO CODE 1912 GREASE.
2. Attach pump mounting plate adapter to bell housing
of engine and secure with bolts and lockwashers.
3. Align pump shaft with coupling, push pump into
position and secure with bolts and lockwashers.
2.35 PLATFORM ROTATOR BRAKE
The platform rotator is equipped with a brake, which uses
a stack of belleville washers to apply friction to the plat-
form pivot point. To ensure proper friction, torque bolt
securing belleville washers to 140 ft. lb. (190 Nm).
2.36 PREVENTIVE MAINTENANCE AND
INSPECTION SCHEDULE
The preventive maintenance and inspection checks are
listed and defined in the following table. This table is
divided into two basic parts, the "AREA" to be inspected,
and the "INTERVAL" at which the inspection is to take
place. Under the "AREA" of the table, the various systems
along with components that make up that system are
listed. The "INTERVAL" portion of the table is divided into
five columns representing the various inspection time
periods. The numbers listed within the interval column
represent the applicable inspection code for which that
component is to be checked.
The checks and services listed in this schedule are not
intended to replace any local or regional regulations that
may pertain to this type of equipment nor should the lists
be considered as all inclusive. Variances in interval times
may occur due to climate and/or conditions and depend-
ing on the location and use of the machine.