SUBSECTION 5D
HYDRAULIC COMPONENTS
*SERVICE KIT ITEMS
Figure 5D-8. Swivel (45Z453)
DRUM PAWL CYLINDER (38Q123)
INSTALLATION. To install a new or repaired swivel, pro-
ceed as follows (see Figure 5D-7):
DESCRIPTION. The drum pawl cylinder releases the drum
1. Position the swivel support such that it will fit through
pawl from the left or right drums. When hydraulic pressure
the opening of the carbody and slowly lift or jack the swivel
is applied to the cylinder the pawl is released from drum.
up until the pivot bracket can be turned and rested on the
REPAIRS. The drum pawl cylinder is a non-repairable item.
carbody support.
If the cylinder leaks or has not been operating properly,
2. When the swivel is in position, install the capscrews,
replace it.
lockwashers, and nuts. Tighten securely.
REPLACEMENT. To replace cylinder, see Subsection 7E.
NOTE
Position the swivel so that the numbers stamped on
SWING LOCK CYLINDER (36Z434)
the body and spool face the respective hoses tagged
DESCRIPTION. The swing lock cylinder engages and disen-
earlier.
gages the 360 swing lock. Hydraulic pressure engages and
disengages the stop block into the slewing ring bull gear.
3. Reconnect the hydraulic lines from the upper to the
appropriate ports in the swivel body.
REPAIRS. The swing lock cylinder is a non-repairable item.
If the cylinder leaks or has not been operating properly,
4. Reconnect the hydraulic lines from the lower to the
replace it.
appropriate ports on the spool.
REPLACEMENT. To replace the swing lock cylinder, pro-
5. Connect the battery ground cable. Start the engine and
ceed as follows (see Figure 5D-9):
check for leaks while operating the propel functions. Add
1. Shutdown the engine and make sure all hydraulic pres-
clean hydraulic oil, as necessary, to the hydraulic propel
sure is released from the system.
and/or controls reservoirs.
5D-12
