JLG 340AJ, Service And Maintenance Manual

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SECTION 3 - CHASSIS & TURNTABLE
3121259 – JLG Lift – 3-35
WEAR EYE PROTECTION AND BE SURE TO COMPLY WITH OSHA OR OTHER MAX-
IMUM AIR PRESSURE REQUIREMENTS.
NEVER STEAM OR HIGH PRESSURE WASH HYDRAULIC COMPONENTS. DO NOT
FORCE OR ABUSE CLOSELY FITTED PARTS.
• Keep parts separate to avoid nicks and burrs.
• Discard all seals and seal rings as they are removed from
the motor. Replace all seals, seal rings and any damaged or
worn parts with OEM approved service parts.
Disassembly and Inspection
1. Place the motor 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 if applicable.
IF THE MOTOR IS NOT FIRMLY HELD IN THE VISE, IT COULD BE DISLODGED
DURING THE SERVICE PROCEDURES, CAUSING INJURY.
2. Scribe an alignment mark down and across the motor
components from end cover (2) to housing (18) to facili-
tate reassembly orientation where required.
3. Remove the special ring head bolts (1) using an appro-
priate 1/2 or 9/16 inch size socket. Inspect bolts for dam-
aged threads, or sealing rings, under the bolt head.
Replace damaged bolts.