Skyjack SJ3219 Service Manual

99
SJ3215, SJ3219
212508ADA
Section 4 – Troubleshooting Information Hydraulic System
4.3-11 MEWP will not hold on a Grade (Wet Brakes)
1. Worn or damaged brake(s).
Inspect brake discs for wear. Replace if worn or
damaged.
2. Broken or damaged brake compression springs. Check springs. Replace if defective.
3. Defective Brakes BR1and/or BR2.
Inspect wheel assembly. Repair and replace as
necessary.
4.3-12 Platform does not Steer
1. Right Steer valve 4H-23A and/or Left Steer valve
4H-24A is defective.
Check valves. Replace if defective.
2. Steer cylinder C2 seal leaking. Rebuild cylinder. Replace if damaged.
3. Steering cylinder Orifice O1 and/or O2 is
plugged.
Clean orifice. Replace if damaged.
4. Mechanical binding in kingpins. Check for binding. Repair as needed.

Skyjack SJ3219 Specifications

General

Gradeability	25%
Power Source	Electric
Drive Motor	24V DC
Tire Type	Solid, non-marking
Lift Capacity	550 lbs
Machine Width	32 in
Machine Length	70 in
Drive Speed (Stowed)	2 mph
Drive Speed (Raised)	0.8 km/h
Turning Radius (Inside)	0 in (0 m)
Battery	4 x 6V
Working Height	25 ft