SkyTrak 8042 Service Manual - Manual (Page 851)

Stabil-TRAK™ System and Boom Interlock System
10.10 Model 8042, 10042, 10054 Legacy Rev. 10/03
10.4.3 Logic Wiring Harness (10054 Only)
The Model 10054 uses an additional logic wiring harness,
that includes all wiring, fuses and relays needed for the
operation of the boom interlock, Stabil-TRAK™ and
outrigger systems.
The logic harness has a fuse panel (1) that is attached to
the fuse panel (2) from cab harness. The logic harness
includes all the additional relays (3 through 10) and fuses
(11 and 12) required for the operation of the boom
interlock, Stabil-TRAK™ and outrigger systems.
Refer to Section 10.9, “Stabil-TRAK™ Boom Interlock
Electrical Circuit Operation and Troubleshooting
(10054, 13198-17984),” or Section 10.10, “Stabil-
TRAK™ Boom Interlock Electrical Circuit Operation and
Troubleshooting (10054, 17985-19987 and 0160002332
& After),” for electrical troubleshooting information.
10.4.4 Relay Testing
If after checking the electrical system, a relay is suspect,
test the relay as follows:
1. Be sure that the vehicle is on a level surface, the
implement grounded, park brake engaged, ignition
switch is in the OFF position.
2. Unlock and open the rear engine door.
3. If the vehicle has one battery, disconnect the
negative (-) battery cable at the negative (-) battery
terminal (13).
If the vehicle has dual batteries, disconnect both
negative battery cables from both negative (-) battery
terminals (14).
No. Volt Circuit Protected
3 12 Volt Park Brake Interlock Relay
4 12 Volt Boom Extend Relay
5 12 Volt
Outrigger Lockout Relay (SN 13198 through 17984)
Blank (SN 17985 & After)
6 12 Volt Stabil-TRAK Interlock Relay
7 12 Volt Stabil-TRAK Lock Up Relay
8 12 Volt Boom Extend Interlock Relay
9 12 Volt Right Outrigger Lock Relay
10 12 Volt Left Outrigger Lock Relay
11
7.5
Amp
Boom/Outrigger Interlock
12
7.5
Amp
Boom/Outrigger Interlock
7.5
20
7.5
10
10
10
15
10
7.5
40 7.5
7.5
MH4111
1 2
3
4
6
8
9
5
7
10
11
12
WARNING:
DO NOT perform service or
maintenance on the vehicle with the engine
running, with the exception of the transmission
level check. Contact with moving parts can
cause death or serious personal injury.
MH4890
13
14