JLG 680S, Service And Maintenance Manual, Page: 144 / 530

SECTION 3 - CHASSIS & TURNTABLE
3-92 3121234
3.17 SWING MOTOR (PRIOR TO SN 0300134352)
Disassembly and inspection
1. Place the Torqlink™ in a soft jawed vice, with coupling
shaft (12) pointed down and the vise jaws clamping
firmly on the sides of the housing (18) mounting flange
or port bosses. Remove manifold port O-Rings (18A) if
applicable.
IF THE TORQLINK™ IS NOT FIRMLY HELD IN THE VISE, IT COULD BE DISLODGED
DURINGTHE SERVICE PROCEDURES, CAUSING INJURY.
2. Scribe an alignment mark down and across the
Torqlink™ components from end cover (2) to housing
(18) to facilitate reassembly orientation where required.
Loosen two shuttle or relief valve plugs (21) for disas-
sembly later if included in end cover. 3/16 or 3/8 in. (4.76
or
9.52 mm) allen wrench or 1 in. hex socket required.
3. Remove the five, six, or seven special ring head bolts (1)
using an appropriate 1/2 or 9/16 in. (12.7 or 14.28 mm)
size socket. Inspect bolts for damaged threads, or seal-
ing rings, under the bolt head. Replace damaged bolts.
4. Remove end cover assembly (2) and seal ring (4). Discard
seal ring.
NOTE: Refer to the appropriate “alternate cover construction” on
the exploded view to determine the end cover construction
being serviced.