Skyjack SJKB-40-D Operating Maintenance Instructions & Part List page 83

TROUBLE
NO DRIVE FORWARD
NO DRIVE REVERSE
NO HIGH DRIVE
NO ELEVATED DRIVE
SECTION 4, Page 32
TROUBLESHOOTING (Cont.)
PROBABLE CAUSE
HYDRAULIC SYSTEM (Cont.)
1. Defective relief valve RV7.
1. Defective relief valve RV6.
1. Stuck or defective high speed drive
valve 2H-59.
2. Relief valve RV5 set to low.
1. Defective or misadjusted hi/low
drive relief valve RV4.
JUN. 1999
REMEDY
1. Check Valve.
defective.
1. Check Valve.
defective.
1. Check Valve.
defective.
2. Refer to section 5, "drive pump
test procedure". If pressure is
lower than 300 PSI replace relief
valve RV5.
1. Check Valve.
defective.
SJKB-40-D, SJKB-40-D/F
Replace if
Replace if
Replace if
Replace if