Advance Lifts Dock Lifts 6000 Series Manual

 
 
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...

 
 
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.  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 fluid that...

 
 
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  
PUMP SUCTION 
FILTER (IN 
RESERVOIR) 
Check Valves 4 Cylinder 
Units 
2 Cylinder 
Units 
Down Solenoid 
Relief Valve preset at 
factory (DO NOT 
ADJUST) Reservoir 
Flow Control 
Valve  

P 8-5  

 
 
 
Repair Procedures for Cylinders 
 
 
 Tools & Supplies Required: 
 
(2) Small screwdrivers to remove retaining rings and rod wipers. 
A clean (5) gallon bucket to collect fluid from the cylinders. 
Wrenches to disconnect hydraulic fittings. 
Cylinder hone (Craftsman glaze breaker #9K4633 or equivalent). 
Emery cloth 
Clean lint free cloths and hose caps. 
Clean work surface (butcher paper on top of most surfaces works well), with a 
means of holding cylinder end fixed position for disassembly and...

 
 
 
 
Cylinder Disassembly: (Continued) 
 
3.  Carefully remove any debris from the retaining grooves, and then pull out the entire 
rod, bearing, & piston assembly.  Note that the groove in the cylinder housing has a 
sharp edge on the front side and a beveled back edge.  The sharp edge is 
necessary for proper snap ring retention and will probably cut the packing when it is 
pulled out, but the beveled back edge will allow the new packing to slide in uncut.
 
4.  Remove the hex nut or snap ring...

 
 
 
 
 
P 8-8 
6000 Series Cylinder Drawing  

 
 
 
Section 9. Electrical Information 
 
 
The motor supplied as standard is 208/230/460V 3-phase motor, with connection 
diagrams on the outside of the motor for low voltage, 230V or high voltage, 460V.  This 
motor connection is also rated for 208V.  As any standard motor is rated for +/-10% of 
voltage variation, this motor will operate properly, within ratings, at 208, 220, 230, 240, 
440, 460, and 480V, 3-phase supply. There are other motor configurations including 
single phase 115V & 230V. If...