JLG DVSP Series Service Manual - Manual (Page 151)

SECTION 6 - TROUBLESHOOTING
3121136 – JLG Lift – 6-37
6.12 BASE FRAME COMPONENTS TROUBLESHOOTING
Caster Wheels Not Operating Freely
Check For These Obvious Conditions First:
• Is machine operating on a smooth, level surface?
Pot Hole Protection (PHP) Bars will not Lower
Check For These Obvious Conditions First:
• Obstruction under pot hole bar on either side of machine.
• Obstruction around the actuator assembly at the base of the mast.
Table 6-47. Caster Wheels Not Operating Freely.
STEP ACTION SPEC YES NO
1. Is the caster rotating freely?
— Go to Step 2
Lubricate or
Replace Caster
Housing
2. Is the wheel spinning freely?
— Go to Step 3
Lubricate or
Replace Wheel
3. Is debris stuck in the rubber wheel?
—
Remove Debris or
Replace Wheel
—
Table 6-48. Pot Hole Protection (PHP) Bars will not Lower.
STEP ACTION SPEC YES NO
1. Check the actuator assembly and cables for adjustment or damage.
— Adjust or Replace Consult Factory