Quick Attach Removal; Quick Attach Installation - JLG sky trak mmv Service Manual

6. Place the travel select lever in the [N] NEUTRAL
position, place the neutral lock lever in the [N]
NEUTRAL LOCK position, engage the parking brake
switch, unbuckle the seat belt and exit the vehicle
using both hand holds.
7. Insert the quick attach pin (2) completely through the
attachment and the quick attach link (3). Insert the
spring clip pin (1) through the quick attach pin.
8. Remove the protective caps (8) from the quick
couplers:
Connect the quick couplers in the following order:
Connect the YELLOW (7) then the GREEN (6) on
the right side. Connect the BLACK (5) then the
RED (4) on the left side.
9. In the event there is trapped pressure in one of the
carriage hydraulic hoses, connect the quick
coupler(s) with a firm constant motion. This will allow
the (specially designed) male quick coupler to drain
the trapped pressure through to the female coupler
and into the hydraulic system.
WARNING:
vehicle unless you are in the operator's seat
with the seat belt fastened around you. Death or
serious injury could result if the seat belt is not
securely fastened.
10. Return to the cab, fasten the seat belt and resume
operation.
4.4.3

Quick Attach Removal

1. Remove two socket head capscrews (9) from the
flange in the upper pin (10). Tap out upper pin.
2. Remove one 1/2-13 x 5" capscrew (11) and elastic
locknut (12). Tap out lower attachment tilt cylinder
pin (13).
3. Remove the quick attach assembly (14) from the
attachment tilt cylinder (15) and inner boom
gooseneck (16); retain shim washers (17) for
reinstallation.
Model MMV Rev. 12/04
DO NOT operate the
14
11
12
13
Note: ALWAYS replace elastic locknuts with new elastic
locknuts to help ensure proper fastening.
4.4.4

Quick Attach Installation

1. Tap upper (10) and lower (13) pins through quick
attach assembly (14), and shim washers (17)
(equally placed on both sides as required), attachment
tilt cylinder (15) and inner boom gooseneck (16).
2. Secure the lower attachment tilt cylinder pin with one
1/2-13 x 5" capscrew (11) and a new 1/2-13 elastic
locknut (12).
3. Secure the upper pin with two 1/2-13 x 1"socket
head capscrews (9). Line up the holes in the flange
on the pin with the mounting holes in the hub of the
quick attach assembly (14).
Boom
17
15
10
9
MM4120
16
4.45