Advance Lifts Dock Lifts Pit Mounted Manual

Fig. 4 
Fig. 3 
ALL MODELS 
Never use the safety maintenance bar when the 
platform has a load. Remove the load first, then 
brace for service or maintenance. Check that the 
safety bar is well seated and remains so during 
heavy wrenching or maintenance operations. CAUTION! Read the entire lift blocking procedure and all warnings before 
attempting to use the maintenance bar. SERIES 3000 Place the maintenance bar or leg near the center 
of the torque tube and on the base frame, then 
lower the equipment...

 
 
SECTION 7:  POWER UNIT ASSEMBLIES 
 
This section contains drawings and photos of completed power units to aid service 
personnel in identifying each component.  Please be careful to match the correct 
voltage and horsepower as well as model number, when you are trying to identify the 
power unit for your lift.  Advance Lifts uses several different brand name motors and 
pumps, so the ones shown in the pictures may not be the same exact brands as on your 
unit.  More information about individual...

 
 
Series 2000 and 3000 Power Units 
 
 
 
 
 
  
 
See Page 8-4 for Hydraulic Diagram and Pages 9-3 thru 9-5 for Electrical Diagram 
 
 
P 7-3 
Single Phase Motor Pump-Motor Adapter Hydraulic Pump 
Reservoir Breather 
Ca
pReservoir 
Drain Plug 
Suction Line 
Wall Mounting 
Bracke
t
Oil Identification 
Tag
 
Suction Line Filter 
in Reservoi
r
Return Line to 
Reservoi
r
Suction Line 
Three-Phase 
Motor  

 
 
 
Series 4000 
 
 
 
 
 
Series 4100 Power Unit 
 
 
 
See Page 8-5 for Hydraulic Diagram and Pages 9-4 & 9-5 for Electrical Diagrams 
 
P 7-4
 
 
Three Phase Motor Hydraulic Pump 
Manifold Assembly 
(Detail on Page 8-6) 
Pressure 
Line Filters 
in Pipe 
Down Solenoid 
Junction Box 
Suction Line, (Filter 
in Reservoir) 
Three Phase Motor 
Down Solenoids 
Reservoir Drain 
Plug 
Reservoir  
Air Breather Cap 
and Fill Hole
Wall Mounting 
Brackets
Pressure Line to 
C
ylinders 

 
 
SECTION 8:  HYDRAULIC DETAILS 
  
1. General Hydraulic Information:  
A.  All hydraulic cylinders will require the replacement of packing’s and seals after a 
period of time, depending on usage and environmental conditions.  It is normal 
maintenance just like changing oil in an automotive engine.  However, 
maintenance personnel should recognize the difference between leakage and 
weepage: 
B.  Weepage is the normal accumulation of fluid that passes the seals in the course 
of operations, as the...

 
 
Oil Recommendations & Seal Compatibility 
 
Fluids: 
 
1.  As of 1/1/03 the current standard hydraulic fluid an ISO 46, (group II base) hydraulic 
fluid. This is the fluid normally supplied by the factory and is suitable for a 
temperature range of –10 to +100 degrees Fahrenheit. When replacing or adding 
fluid to an Advance Lift, use only ISO 46 hydraulic fluid that is manufactured with a 
group II base oil. ISO 46 hydraulic fluid can be identified by its purple color. 
 
2. Caution! Do not use any...

 
 
Pressure Chart for Hoses & Pipes 
 
     Hose        SAE        Working PSI      Bursting PSI 
           ¼”        100-R2A       5000           20000 
       
3/8”       100-R2A       4000           16000 
          ½”        100-R2A       3500           14000 
          ¾”        100-12        4000           16000 
 
 
           Seamless Pipe         Working PSI     Bursting PSI 
 
           ½” Schedule 80         4100                21000 
            ¾” Schedule 80        3500           17600...

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
P 8-4 
MOTOR 
HYDRAULIC DIAGRAM FOR UNITS WITH INTERNALLY VALVED PUMPS  
 
 
 
RESERVOIR 
PRESSURE RELIEF 
VALVE. FACTORY 
SET, DO NOT 
ADJUST 
SUCTION LINE 
FILTER IN 
RESERVOIR 
CHECK 
VALVE 
INTERNAL 
FILTER 
PRESSURE 
COMPENSATED 
FLOW CONTROL 
VALVE  DOWN 
SOLENOID 
½’’ SAE 100R2 
HYDRAULIC HOSE WITH 
½” FEMALE JIC FITTINGS 
(SUPPLIED BY OTHERS) 
½” MALE JIC FITTINGS 
SUPPLIED BY ADVANCE 
AT PUMP AND...

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
P 8-5 
 
MOTOR  
PUMP 
 
STANDARD HYDRAULIC DIAGRAM FOR 
 ADVANCE 4000 SERIES LIFTS 
RELIEF 
VALVE  
PRESET AT 
ADVANCE, 
DO NOT 
ADJUST FLOW 
CONTROL 
VALVES (2) 
DOWN SOLENOID 
VALVES (2)  CHECK VALVES (4) 
MANUAL 
DOWN 
VALVE  PRESSURE 
LINE 
FILTERS (4) 
SUCTION 
FILTER (IN 
RESERVOIR) FLOW 
CONTROLS 
(4) 
RETURN LINE TO 
RESERVOIR  MANIFOLD 
ASSEMBLY 
½” MALE 
JIC 
FITTINGS 
SUPPLIED 
BY 
ADVANCE 
LIFTS 
FIELD...

 
 
Series 4000 
Standard Valve Manifold 
 
 
 
 
 
 
 
 
 
    
 
 
 
 
 
 
 
 
 
Reference Page 8-10 for Valve Cartridge Details 
 
NOTE:  Valve numbers coincide with those shown in the hydraulic diagram on 
Page 8-5 
 
Part Number Reference 
 
Description                  Part Number 
 
1-4. Check Valves            001-262 
5,6. Down Flow Control Valves     001-303 
7,8. Down Solenoid Valves           001-293 
                9. Manual Down Valve          001-277 
                 10. Pressure Relief...