WARNING:
Failure to observe the following instructions
could allow load to shift or drop. Serious personal injury
and/or property damage may result.
When using JE Series extensions and/or JS Series spacers,
always obey the following rules:
• For loads up to 60 tons [54 metric tons]: Any
two
JE Series
extensions may be included in the stacking arrangement,
provided that the maximum stack height (See Table 5) is not
exceeded and the following exceptions are observed:
1) Jack model JA6024
:
Only
one
JE18 extension can be
included in the stacking arrangement.
2) All jack models ending in “26”
:
Only
one
JE11, JE14 or
JE18 extension can be included in the stacking arrangement.
3) All jack models ending in “37”
:
Extensions JE14 and JE18
cannot be included in the stacking arrangement.
These extensions
are designed for short stroke jacks only (models ending in
“24” and “26”).
• For loads over 60 tons [54 metric tons], or strokes over 14
inches [356 mm]: Only
one
JE Series extension and
one
JS
Series spacer can be included in the stacking arrangement.
• Never exceed 3 inches [76 mm] in total spacer height.
• Never exceed the maximum additional stack height for your
jack model. Refer to Table 5, dimension “X”.
Table 5 - Maximum Additional Stack Height Using
Optional JE Series Extensions and JS Series Spacers
Jack
Model
Maximum Additional Stack
Height (dimension “X”)
X
inches
mm
JA6024
32
813
JA6037
11
279
JA10026
21
533
JA10037
11
279
JAS10026
21
533
JAS10037
11
279
JAS15026
21
533
JAS15037
11
279
JAS20026
21
533
JAS20037
11
279
5.5 Load Caps
A non-swivel load cap is included with the jack as standard
equipment. A swivel load cap is available as an optional
accessory. Refer to Table 6 for a list of load cap model numbers.
IMPORTANT:
Use a swivel load cap to properly engage angled
lifting points. A swivel load cap should always be used when the
amount of misalignment between the standard load cap and the
lifting point is too large to be compensated for by use of plywood
or other suitable compression material alone.
Table 6 - Load Caps
Jack Model
Load Cap Model Numbers
Non-Swivel
Load Cap (standard)
Swivel Load Cap
(optional accessory)
JA6024
S42208
JTS60
JA6037
JA10026
S42208
JTS60
JA10037
JAS10026
JAS10037
JAS15026
S42208
JTS150
JAS15037
JAS20026
S42208
JTS200
JAS20037
5.6 U-Ring Stacking Instructions
(See Figure 5)
Pow'r-Riser U-Rings (optional accessories) allow positive
mechanical load holding of a lifted load. The U-Rings are placed
on top of the cylinder housing and around the extended cylinder
rod. They are available in five different lengths for each Pow'r-
Riser model.
To help ensure proper alignment and installation, the top surface
of the cylinder housing and the top surface of each U-Ring
contains a raised locator. The bottom surface of each U-Ring
contains a mating recess.
The U-Rings are made of steel and aluminum. A steel U-Ring
must always be positioned at the top and bottom ends of the
U-Ring stack. The aluminum U-Rings must always be located
in the middle of the stack, between the two steel U-Rings. This
stacking arrangement helps prevent damage to the aluminum
U-Rings.
CAUTION:
Never position an aluminum U-Ring at the
top or bottom end of the U-Ring stack.
Install U-Rings as described in the following steps:
1. Using the jack, raise the load to the desired lifting height.
Refer to the instructions in Section 5.3 of this manual.
2. Place one steel U-Ring on top of the cylinder housing,
around the extended cylinder rod.
3. As required, place one or more aluminum U-Rings on top
of the steel U-Ring, around the extended cylinder rod.
The quantity of aluminum U-Rings to be installed will vary,
depending on jack model, lifting height and the U-Ring set
being used. Refer to Table 7 for additional information.
4. Place a second steel U-Ring at the top of the U-Ring stack.
IMPORTANT:
Be sure the arrow on each U-Ring is pointing up.
Be sure all locators are fully engaged in the mating recesses of
the U-Rings.
CAUTION: Pinch point hazard:
In the following step,
keep hands and fingers clear of area between load
support ring and top of U-Ring stack.
6
