JLG boom lifts (450AJ, 600AJ, 800AJ, 460SJ, 660SJ, 860SJ, 1250AJP, M450AJ, M600JP)
JLG error code 3320 — RIGHT REVERSE DRIVE PUMP - SHORT TO GROUND
Message on the display: RIGHT REVERSE DRIVE PUMP - SHORT TO GROUND · flash code 3/3
Code 3320 occurs in machines: JLG 600AJ, 600S, 660SJ, 800AJ, 800A, 460SJ, 400S, 1250AJP, 1100S, 1100SJP, 450AJ SII, 510AJ.
blocking fault
There is a Short to Ground to the Right Reverse Drive Valve.
Description from the JLG service manual, in the original wording.
Possible causes
The manual does not list the causes for this code: the service technician establishes them during diagnosis of the machine.
Checks from the manual
- - Chassis Module equipped vehicles only.
What service does
A qualified service technician reads the code with the manufacturer's diagnostic tools, finds the cause, clears the code and carries out a function test.
Source: JLG Service and Maintenance Manuals: 600AJ (3121201), 800AJ (3120858), 460SJ, 860SJ, 1250AJP (3122581800), M450AJ (3121829), M600JP (3121711), Diagnostic Trouble Codes tables.
The descriptions are quoted from the manufacturer's service documentation and are for guidance only. Clearing codes, calibrations and repairs are carried out by a qualified service technician according to the manual for the specific serial number. A machine with an active blocking code must not be used until the cause has been removed.
Does code 3320 not go away?
RK Rental services JLG lifts at our workshop or on site at the customer's premises (construction site, factory, warehouse). We read the code, remove the cause and select the parts by serial number.
Neighbouring JLG codes
- 3317RIGHT FORWARD DRIVE PUMP - OPEN CIRCUIT
- 3318RIGHT FORWARD DRIVE PUMP - SHORT TO BATTERY
- 3319RIGHT FORWARD DRIVE PUMP - SHORT TO BATTERY OR OPEN CIRCUIT
- 3321RIGHT REVERSE DRIVE PUMP - OPEN CIRCUIT
- 3322RIGHT REVERSE DRIVE PUMP - SHORT TO BATTERY
- 3323RIGHT REVERSE DRIVE PUMP - SHORT TO BATTERY OR OPEN CIRCUIT