JLG 600A_AJ Service Manual - Manual (Page 162)

SECTION 3 - CHASSIS & TURNTABLE
3-112 – JLG Lift – 3121201
3.22 LP GAS FITTING INSPECTION
USE ALL APPLICABLE SAFETY PRECAUTIONS WHILE WORKING
ON, UNDER, OR AROUND ANY MACHINERY.
DO NOT SMOKE DURING THIS PROCEDURE.
1. Position the machine on a firm, level surface in a
well-ventilated area free from any heat sources.
2. Lower the platform to the stowed position.
3. Depress the Emergency Stop button at the ground
control panel and remove the key from the key
switch.
ENSURE THE ENGINE IS COOL PRIOR TO PERFORMING THIS
INSPECTION.
4. Locate the 2-1/2” straight fitting between the LP gas
lockoff valve and the LP gas mixer. Refer to Figure 3-
83., LP Gas Fitting Components.
5. Refer to Figure 3-83., LP Gas Fitting Components
and ensure that the hood-mounting bracket does
not interfere with the 1/4“ NPT X 2-1/2” straight tube
fitting (JLG P/N 70001531).
6. Refer to Figure 3-84., Hood Mounting Bracket Clear-
ance. If adequate clearance DOES EXIST between
the straight tube fitting and the hood-mounting
bracket, proceed to Step 10. If adequate clearance
DOES NOT EXIST between the straight tube fitting
and the hood-mounting bracket, proceed to Step 7.
ENSURE THE LP GAS SUPPLY AT THE LP TANK IS CLOSED OFF
PRIOR TO PROCEEDING.
7. As necessary, disassemble the LP gas system
between the lock-off valve and the LP mixer to allow
for reorientation of the 1/4” NPT X 1/4” SPT X 90
degree elbow (JLG P/N 70001307).
8. Properly clean all old thread sealant from the LP gas
fittings.
9. Apply Permatex Thread Sealant (Permatex P/N
56525) to the LP gas fittings. Reassemble, allowing
for proper clearance of the hood-mounting bracket
and the LP gas system that was disassembled in
Step 7. Refer to Figure 3-84., Hood Mounting
Bracket Clearance for proper clearance. Properly
tighten all LP gas connections.
10. Check the LP system for evidence of leaks. If any
leaks are detected, properly repair them prior to
returning the unit to service.
1. LP Gas Lockoff Valve
2. 1/4" NPT x 2-1/2" Straight Fitting
3. 1/4" NPT x 1/4" SPT x 90 Degree Elbow
4. Hood Mounting Bracket
Figure 3-83. LP Gas Fitting Components
Make sure there is a minimum of 0.5 inches (13 mm) clearance
between the hood mounting bracket and the straight tube fitting.
Figure 3-84. Hood Mounting Bracket Clearance