JLG 460SJ Service Manual - Manual (Page 141)

SECTION 3 - CHASSIS & TURNTABLE
3120895 – JLG Lift – 3-89
Replacement of Couplings
1. Remove coupling held by two 10/32 screws and
nuts.
2. Un-bolt hydraulic motor from motor mount.(Two
each 3/8-16 screws and nuts.)
3. Remove motor mount from welder four each 5/16-18
screws.
4. Loosen setscrews in both couplings.
5. Remove both couplings with gear puller.
6. Push new coupling onto hydraulic motor shaft (.625
bore).
7. Heat 24mm bore coupling to about 300 degrees ad
slide on generator shaft.
8. Let generator coupling cool.
9. Install sox spider o welder coupling.
10. Re-install motor mount onto welder, do not over
tighten, the threads are aluminum.
11. Re-align hydraulic motor coupling with welder cou-
pling and re-install hydraulic motor on motor mount.
12. Push couplings together and tighten setscrews in
both couplings.
13. Re-install coupling guard.
Voltage Change Over - 120/240 Volt
1. The welder/generator has a connector with 4 wires,
located in the lower portion of the welder.
2. The wire colors are blue, black, white, and brown.
3. For 120 volt only, connect the blue & black together.
This is the hot leg. Connect brown & white together.
This is neutral.
4. For 120/240 volt, use the blue wire as the hot leg.
Use the white wire as the other hot leg (white to blue
= 240 volt). Connect the black & brown together.
This is neutral.