Bil-Jax Personal Lift Cougar Lift Electric Hydraulic Lift Platform Manual De Usuario

It is recommended that Bil-Jax be contacted for assistance before removing the hydraulic 
cylinder. 

1.  Be sure cylinder is completely retracted and pressure is released from the sys-

tem. Place a pan underneath the hydraulic cylinder to catch the hydraulic oil. 

2.  Disconnect the hydraulic hose from the bottom of the cylinder and drain the hy-

draulic oil. Remove the two bolts, washers, and nuts securing the bottom of the 
cylinder to the base. 

3.  Remove the plexiglass cover from the base. 

4.  Remove the mounting bolt, washer, and nut securing the top of the hydraulic 

cylinder to the lower mast. 

5.  Disconnect the two lift chains from the base mast. 

6.  Using a crane with at least one ton of lifting capacity, lift the lower mast section 

high enough to remove the clamp securing the cylinder to the base, and remove 
the cylinder from the unit. 

7.  After maintenance has been performed on the hydraulic cylinder, follow the re-

moval procedure in reverse to reinstall the cylinder in the unit. 

Perform the following procedure to repair and maintain the hydraulic lift cylinder. Refer 
to Figure 4-6. It is recommended that whenever the hydraulic cylinder is disassembled, 
all seals be replaced; order seal repair kit B02-13-0097. 

1.  Remove gland nut (3, Figure 4-6) with gland nut seal (4), rod wiper (2), and 

o-ring (5) from the cylinder jacket (1). 

2.  Remove piston rod (6) and wear ring (7). Inspect piston rod (6) for any 

scratches or pits. Pits that go into the base metal are unacceptable. Scratches that 
catch the fingernail, but are not through the base metal or less than 1/2 inch long 
and are around the rod are acceptable providing they are not sharp enough to cut 
the seal. The rod surface should not have any of the chrome worn through. Re-
place the cylinder if any of these conditions are not met. 

3.  Clean inside the cylinder jacket (1) and inspect for any scratches or pits.  Pits 

that are deep enough to catch the fingernail are unacceptable. Scratches that 
catch the fingernail, but are less than 1/2 inch long and are around the tube are 
acceptable providing they are not sharp enough to cut the seal. Replace the cyl-
inder if any of these conditions are not met. 

4.  Install wear ring (7) into the grooves at the bottom of the piston rod (6). Lubri-

cate assembly with hydraulic fluid and place back into cylinder jacket (1). 

5.  Lubricate rod wiper (2), gland nut seal (4), and o-ring (5) with hydraulic fluid. 

6.  Twist gland nut seal (4) into a “C” shape and insert it with lip side down into the 

groove inside the gland nut (3). Place o-ring (5) over the threads of the gland