Swing Motor; Disassembly And Inspection - JLG 400SC Service And Maintenance Manual

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SECTION 3 - CHASSIS & TURNTABLE

3.4 SWING MOTOR

Disassembly and inspection

1. Place Torqlink™ in a soft jawed vice, with coupling shaft
(12) pointed down and vise jaws clamping firmly on
sides of housing (18) mounting flange or port bosses.
Remove manifold port O-Rings (18A) if applicable.
IFTHETORQLINK™ 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 Torq-
link™ components from end cover (2) to housing (18) to
facilitate reassembly orientation where required. Loosen
two shuttle or relief valve plugs (21) for disassembly
later if included in end cover. 3/16 or 3/8 inch Allen
wrench or 1 inch hex socket required.
3-34
3. Remove five, six, or seven special ring head bolts (1)
using a 1/2 or 9/16 inch size socket. Inspect bolts for
damaged threads or sealing rings under the bolt head.
Replace damaged bolts.
4. Remove end cover assembly (2) and seal ring (4). Discard
seal ring.
NOTE:
Refer to appropriate "alternate cover construction" on the
exploded view to determine end cover type being serviced.
31215019

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