11 Mewp Will Not Hold On A Grade (Wet Brakes); 12 Platform Does Not Steer - Skyjack SJ3219 Service Manual

Section 4 – Troubleshooting Information

4.3-11 MEWP will not hold on a Grade (Wet Brakes)

1. Worn or damaged brake(s).
2. Broken or damaged brake compression springs.
3. Defective Brakes BR1and/or BR2.

4.3-12 Platform does not Steer

1. Right Steer valve 4H-23A and/or Left Steer valve
4H-24A is defective.
2. Steer cylinder C2 seal leaking.
3. Steering cylinder Orifice O1 and/or O2 is
plugged.
4. Mechanical binding in kingpins.
212508ADA
99
Inspect brake discs for wear. Replace if worn or
damaged.
Check springs. Replace if defective.
Inspect wheel assembly. Repair and replace as
necessary.
Check valves. Replace if defective.
Rebuild cylinder. Replace if damaged.
Clean orifice. Replace if damaged.
Check for binding. Repair as needed.
Hydraulic System
SJ3215, SJ3219