Service Manual User Manual
General Information, Specifications, and Maintenance
2-39
Figure 2–70. Vehicles stamped with serial number
9399
and after
use the fuse and relay panel shown here.
2.12.17 Boom Chains
A. Boom Chain Tension Check
Figure 2–71. Every 1,000 hours of engine operation, check
both boom chains for proper tension.
1. Park the vehicle on level ground. Place the travel
select lever in NEUTRAL (N), engage the parking
brake switch and raise the boom to a horizontal
boom. Retract the boom completely and shut the
engine off.
2. Measure the distance between the inner boom and
the intermediate boom (Fig. 2–72). The inner boom
should extend 2.25 inches (57 mm) to 2.75 inches
(70 mm) beyond the end of the intermediate boom. If
the measurement is less than 2.25 inches (57 mm),
the chains require adjustment.
Figure 2–72. Measure the distance between the inner
boom and the intermediate boom.
B. Boom Chain Adjustment
1. Park the vehicle on level ground. Place the travel
select lever in NEUTRAL (N), engage the parking
brake switch and raise the boom to a horizontal
boom. Retract the boom completely and shut the
engine off.
2. Loosen the retract chain locknut (Fig. 2–73) located
on the bottom at the front of the outer boom.
Figure 2–73. Turn the retract chain locknut at the front of
the outer boom.
3. Unlock and open the rear cover.
4. While preventing the clevis end from turning, tighten
the extend chain locknut (Fig. 2–74) located at the
rear of the outer boom.
7.5
15
15
30
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5 7.5
7.5
7.5
30
25
7.5
20
20
7.5
7.5 7.5
Vehicles Stamped with S/N 9399
and After
Neutral
Relay/Starter
*Cold Start
Main
Display
Panel
Fuel
Shut-Off
*Blower Motor
Stabil-TRAK
Solenoid
Park Brake
Sense Relay
Trans.
Solenoids
*Window
Motor
Logic
Panel
*Light Pkg (B)
*Light Pkg
(A)
Neutral
Sense
Hourmeter
*Front
Wiper
*Skylight
Wiper/Washer
*Rear Wiper
Horn
*Switch
Lamps
Trans.
Relay
*Aux.
Detent
Mode
Steer
Solenoids
*Power Window
Motor Relay (40 Amp)
Reverse Relay
Forward Relay
Stabilizer Lock
Relay
Boom Switch
Relay
Stabilizer
Lock Relay
*Power Accessory
Relay (40 Amp)
Neutral Relay
Trans. Relay #3
Trans. Relay #2
Trans. Relay #1
*Optional
OS2190
OS0940
0001
MS2190
B
OS1060
2.25"-2.75"
(57-70 mm)
Inner Boom
Intermediate Boom
OS1070
Retract
Chain
Locknut
Outer Boom
Model 3606
•
Origin 10/99