DPN: 009120
Page 1 of 21
Rev.1
DPN: 009120
Page 2 of 21
Rev.1
DPN: 009120
Page 3 of 21
Rev.1
DPN: 009120
Page 4 of 21
Rev.1
DPN: 009120
Page 5 of 21
Rev.1
DPN: 009120
Page 6 of 21
Rev.1
DPN: 009120
Page 7 of 21
Rev.1
DPN: 009120
Page 8 of 21
Rev.1
DPN: 009120
Page 9 of 21
Rev.1
DPN: 009120
Page 10 of 21
Rev.1
DPN: 009120
Page 11 of 21
Rev.1
DPN: 009120
Page 12 of 21
Rev.1
PROBLEM
POSSIBLE CAUSE
1.) Lift will not operate-"POWER ON" Control not armed properly. amber LED light does not come on.
Poor electrical connection. 3 Amp Mini ATO fuse is blown. Polarity is reversed. Circuit breaker tripped or disengaged.
2.) Lift will not operate-"LIFTGATE ACTIVATED" red LED light doe s not come on.
Faulty control. "POWER O N" amber LED light is blinking. Control not activated properly.
Faulty control. 3.) Blinking amber "POWER ON" LED. Low voltage condition.
4.) Lift will not raise or raises slowly -control working properly.
Poor grounds or connections. Power connected or reconnected since last use. Poor electrical connection. Battery charge is low. Release valve stuck, partially open or dirty. Release valve needs replacement. "Raise" solenoid not working. Oil level low. Vent plug not installed or dirty.
Overloaded liftgate.
DPN: 009120
Page 13 of 21
REMEDIES Turn the power on at the control by pressing the "PO WER ON" hidden switch, marked with black rings or circles (located between the Tommy Gate logo and the toggle switch). Check and repair or replace all cables and connections. Correct short and then replace fuse. Switch positive and negative cables. Check for short, then manually engage circuit breaker. Replace control. Low voltage condition. Check and repair or replace all cables and connections. Press the "LIFTGATE ACTIVATED" hidden switch twice within one second (located under the Tommy Gate logo). The red "LIFTGATE ACTIVATED" LED light should come on. Replace control. Check and clean or repair all electrical connections. Load test battery, then recharge or replace battery, if required. Reset control. Repair, replace, clean as necessary. Normal, press bullseye once to activate solid "POWER ON" red LED. Check power and ground cables and all connections. Recharge or replace battery. Raise platform completely and continue to run pump for 5 se conds. Contact Tommy G ate or distributor. Contact Tommy G ate or distributor. Check oil and add ISO grade 32 hydraulic oil O NLY . Check vent plug on pump tank. A red shipping plug is installed at the factory. It must be replaced by the metal vented plug. Remove some material or weight.
Rev.1
PROBLEM 5.) Lift settles down slowly with load or no load.
6.) Pump or motor noisy.
7.) Lift lowers very slowly, especially in cold weather.
8.) Lift will not lower.
DPN: 009120
POSSIBLE CAUSE
REMEDIES
Hoses or fittings leaking. Check valve stuck or dirty.
Tighten or replace. Raise and lower lift several times to flush out valve. Check valve damaged. Contact Tommy Gate or distributor. Cylinder seals worn or damaged. Contact Tommy Gate or distributor. Down solenoid sticking partially open. Contact Tommy Gate or distributor. Worn pump, motor or coupling. Contact Tommy Gate or distributor. Oil level low. Check oil and add ISO grade 32 hydraulic oil ONLY. Hinge arm pins seized to the Clean and/or replace arm pins and bushings. bushings. Lack of lubrication at cylinder pins Lubricate all zerks. and/or upper arm assembly. Cylinder pins seized due to lack of Clean and/or replace cylinder pins. lubricant. Control not armed and activated-No Press the "POWER ON" hidden amber "POWER ON" LED or red switch, marked with black rings "LIFTGATE ACTIVATED" LED light or circles (located between the on. Tommy Gate logo and the toggle switch). The amber "POWER ON" LED light should come on. Now press the hidden "LIFTGATE ACTIVATED" switch twice within one second (located under the Tommy Gate logo). The red "LIFTGATE ACTIVATED" LED light should come on. Poor electrical connections. Check and clean or repair all electrical connections. 3 Amp Mini - ATO fuse is blown. Correct short and then replace fuse. Lift stuck or sprung, if control is Apply downward load on platform, working properly. pry away upright sides If control is working properly, Contact Tommy Gate or distributor. damaged or non-working release solenoid. Hinge arm or cylinder pins seized. Lubricate, clean and/or replace pins.
Page 14 of 21
Rev.1
DPN: 009120
Page 15 of 21
Rev.1
DPN: 009120
Page 16 of 21
Rev.1
DPN: 009120
Page 17 of 21
Rev.1
DPN: 009120
Page 18 of 21
Rev.1
DPN: 009120
Page 19 of 21
Rev.1
DPN: 009120
Page 20 of 21
Rev.1
NOTICE USE ISO GRADE 32 OR TOMMY GATE HYDRAULIC FLUID IN THE POWER UNIT. DO NOT USE AUTOMATIC TRANSMISSION FLUID (ATF) OR TOMMY GATE WINTER GRADE HYDRAULIC FLUID OR THE FOLLOWING WILL RESULT: (1) (2) (3) (4)
WARRANTY WILL BE VOID PREMATURE SEAL FAILURE SEAL SWELLING NOISY OPERATION
NOTICE USE ISO GRADE 32 OR TOMMY GATE HYDRAULIC FLUID IN THE POWER UNIT. DO NOT USE AUTOMATIC TRANSMISSION FLUID (ATF) OR TOMMY GATE WINTER GRADE HYDRAULIC FLUID OR THE FOLLOWING WILL RESULT: (1) (2) (3) (4) DPN: 009120
WARRANTY WILL BE VOID PREMATURE SEAL FAILURE SEAL SWELLING NOISY OPERATION Page 21 of 21
Rev.1