BRUNEL JSE1-0254DCF Technical specifications

World Leader in Modular Torque Limiters
Maintenance Instructions
Safety Element Torque Limiters
JSE1-0254DCF

1. PROIR TO INSTALLATION
Check shaft extensions & installation area where Torque Limiter
is to be mounted to make sure there is sufcient space available
for resetting after disengagement.
2. MOUNTING TORQUE LIMITER ON SHAFT
a. Make sure bores & keyways are clean and free of burrs,
and that set screws are in place.
b. Mount Eex Hub (1-19) onto gearbox output shaft and
mark setscrew locations on shaft. Remove Eex hub and
dimple shaft with drill to allow set screws to lock hub in
vertical location on shaft (debur after drilling)
c. Slide torque limiter and Eex hubs onto shafts and lock
with set screws. Make sure that shafts are aligned and
that there is a 6mm (.24”) gap between clutch detent
pocket hub (1-1) and Eex Hub (1-19).
3. TORQUE ADJUSTMENT & INTIAL STARTUP
a. These torque limiters were preset at the factory, no further
adjustment is required at this time. If it is desired to adjust
the torque at a later date, proceed as follows.
b. To adjust torque at the job site: Loosen Set Screw (1-20) on
the safety element housing and adjust the torque by turning
the safety element Housing Nut (2-7) with a 1 1/8” wrench.
The torque is increased by turning the nut clockwise
Refer To Page 4 For Detailed Setting Instruction
4. CHECKING RELEASE TORQUE SETTING
Release torque can be checked with a load cell test set up or by
appling torque with dummy shaft and key - by locking one side
to ground and using a torque wrench.
5. RESETTING
On overload, the safety element ball is displaced and the Module
Carrier (1-2) disengages from the Detent Pocket hub (1-1),
allowing the Module Carrier to rotate freely. With the drive at
rest (the power off) and the overload cleared, align the tworeset
arrows on the Detent Pocket Hub and Module Carrier by jogging
the drive motor. After aligning the match marks strike the safety
element plunger with a soft mallet and the plunger will move
back into the safety element 1/4 inch signifying that the unit is
engaged and the drive can be restarted.
6. GENERAL MAINTENACE
a. Grease 2-3 pumps from a grease gun into Grease Fitting
(2-13) every 6 months. Recommended grease is Mobilith SHC
PM Series.
b. Safety elements should be stripped, inspected and re-
assembled at least once every 3 years, more frequently
where frequent tripping occurs.
7. TROUBLE SHOOTING
a. Continual releasing, further adjustment making no difference.
1) Detent Pocket (2-10) worn. Remove Safety Element (1-10),
extract Detent Pocket (use extraction screw), & Rotate
Detent 90º & reinstall. If badly worn replace with new
detent pocket.
2) Additional torque capacity is required. (Consult Brunel
Corporation)
Part No. Description Qty.
1 Eex Hub 1
2 Detent Pocket Hub 1
3 Element Carrier 1
4 Endplate 1
5 Retaining Plate 1
6 Retaining Plate - Eex 1
7 SE5 Module Disc Cam 4
8 Thrust Pad 2
9 Strip Bearing 2
10 ‘O’ Ring Nitrile 4
11 Buffer Bush 6
12 Buffer 6
13 Washer M12 Plain 6
14 Capscrew M12 x 60 SKT HD ST. ST Wedgelock 6
15 Label (Nameplate) 1
16 Setscrew 1/4” -28 UNF x 3/4” Long 3
17 Capscrews 3/8” UNF x 1.25 Long 8
18 Grubscrew 5/16” UNF x 3/4” Long 1
19 Grubscrew 5/16” UNF x 1/2” Long 2
20 Drive Screws 6
21 Label (Pointer Alignment) 2
Maintenance Instructions
Safety Element Torque Limiters JSE1-0254DCF
1
Figure 1

b. Unable to screw Housing Nut (2-7) in any further.
1) Loosen Set Screw (2-17) and make sure that thethreads
on the Housing Nut and Housing are not damaged, if so clean &
le burrs until usable or replace defective parts.
2) You have reached maximum torque capacity.
c. Unable to reset.
Reset arrows not aligned. Check reference marks on Module
Carrier Hub (1-1) and Detent Pocket Plate (1-3). 8.
SAFETY ELEMENT - METHOD OF ASSEMBLY
a. Clean all components and coat all working surfaces with a suitable
anti-seize compound.
b. Grease & install “O” ring (2-14) into groove in Housing (2-11)
c. Grease inside surfaces of the Housing and install Outer Thrust
Race (2-2).
d. Install “O” Ring (2-20) into Housing Nut (2-7).
e. Install 16 springs (2-5) oriented as shown in cross section, and fully
greased.
f. Grease and install the Inner Thrust Race (2-4).
g. Install the Plunger (2-1) through the inner thrust race, springs &
the end of the Housing Nut (2-7) ensuring that the “O” Ring is not
damaged by the Plunger threads.
h. Install 11 - 1/4” Balls (2-3), apply grease to hold balls in place.
i. Screw in the Housing Nut (2-7) into the Housing until there is
contact with the springs.
j. Insert the Locking Pellet (2-18) and Set Screw (2-17) into the side
of the Housing to facilitage locking the Housing Nut. (Refer to #3
for Torque Adjustment)
k. Grease and insert the “O” Ring (2-21) into groove in housing (2-11).
l. Slide “O” ring (2-21) over Bushing (2-8). Grease and insert the
“O” Ring (2-19) into the Bushing (2-8), insert the Detent Ball (2-9)
after throughly greasing the Bushing ID. Grease the Plunger (2-1)
and install the Bushing.
m. Loctite Shroud (2-12) to the end of Plunger (2-1) using Loctite
#270. Grease for rebuilding Safety Elements: Mobilith SHC PM
Series.
9) METHOD OF PRELOADING EACH SAFETY ELEMENT
(Only required if changing Safety Elements from originals supplied)
a. If replacing original Safety Elements, remove quantity 4, 1/4”-28 x
1 5/8” SHCS (2-6) and remove the Safety Element (1-10) including
Bushing (2-8) Shims (2-16) and Ball (2-9). Replace Detent Pocket
(if worn), this may require extracting the Detent using a 3/8”-16
bolt, insert new Detent Pocket and loctite in place with 5/16”-24 x
5/8” socket head cap screw.
b. Place the Detent Ball (2-9) on top of the Detent Pocket, then insert
the Bushing (2-8), less Bushing “O” Rings (2-21), into the hole until
the ange of the Bushing bottoms.
c. Insert the assembled Safety Element through the bushing until
the Plunger comes in contact with the ball.
Notes:
1) Safety Element must be in the engaged postion
2) Housing Nut (2-7) must be turned past “0” to give some
spring compression
3) “O” Rings (2-21) are to be left out while measuring for
shims.
4) Shims must not be in place when measuring for shims.
d. With a suitable height gage or feeler gage, measure the
resultant gap between the inner face of the Housing (2-11)
and the Module Carrier (1-2). Deduct .003 - .008” from the
measurement (Preload required) and select a suitable sized
laminated Shim Pack (2-16) to accomodate this gap. Place
the Shim Pack onto the Module Carrier Hub, grease and
insert the Bushing, with “O” rings (2-21) in place and secure
the Safety Element with the 4 socket head cap screws.
Item Part No. Description Qty.
1 JSE1 0015-1 Plunger 1
2 JSE1 0015-2 Outer thrust race 1
3 JSE1 0014-3 Ball - 1/4” 11
4 JSE1 0015-4 Inner thrust race 1
5 JSE1 0015-5 Disc spring 16
6 JSE1 0015-6 1/4”-28 X 1 3/4” S.H.C.S. 4
7 JSE1 0015-7 Housing nut 1
8 JSE1 0015-8 Bushing 1
9 JSE1 0014-9 Detent ball - 5/8” 1
10 JSE1 0015-10 Detent pocket 1
11 JSE1 0015-11 Housing 1
12 JSE1 0015-12 Shroud 1
13 JSE1 0014-13 Grease tting 1
14 JSE1 0015-14 “O” Ring (Housing/Housing Nut) 1
15 JSE1 0015-15 5/16”-24 x 5/8” S.H.C.S. 1
16 JSE1 0015-16 Shim Pack 1
17 JSE1 0015-17 Hex Head Set Screw 1
18 JSE1 0014-18 Locking Pellet 1
19 JSE1 0014-19 “O” Ring (Bushing) 1
20 JSE1 0015-20 “O” Ring (Housing Nut) 1
21 JSE1 0015-21 “O” Ring (Bushing/Housing) 2
FIGURE 2
SECTIONED VIEW OF JSE1-0015
Externally Adjustable
Safety Element
2
1
3
4
5
7
89
10
11
12
13
14
15
6
16
17 18
19
20
21
2

JSE1-0254DCF Torque Adjustment Graph
JSE1-0254DCF Torque Setting Curve
0
10000
20000
30000
40000
50000
60000
0.000 0.010 0.020 0.030 0.040 0.050 0.060
Depth From Zero Spring Compression (all modules set the same))
Torque (lb-in)
3

Safety Element Torque Limiter Assemblies
Standard and Disconnect Cam Safety Elements
Detailed Setting Instructions JSE.5-0016 (DISC CAM) & JSE.5-0014 (STD)
Perform the following calculation and proceed with setting each
Safety Element to the same tangential force. Note that the
dimension “X” (Figure 5) as measured in step 7 will vary from
element to element. However, the “depth setting from zero spring
compression” from the graph must be the same and added to “X”
Example calculation:
Example Torque Limiter has Qty. 1, JSE.5-0104MA Safety Element
Torque Limiter. Example release torque = 8,000 lb-in.
1. Determine Setting for each Safety Element Setting = 8,000
lb-in / setting per graph on Page 3.
2. Read from graph for JSE.5-0104MA, the required depth
setting from zero compression. For this example: Depth
from zero compression = .028” Add this to the zero spring
compression depth (as measured in step 7).
Note: a depth of .080” equals one revolution of the
adjusting nut.
3. Set each element in accordance with instructions to
follow.
JSE.5-0014 SETTING INSTRUCTIONS
1. Ensure Set Screw (5-17) is not locking the Adjusting Nut
(5-7).
2. Hold safety element in soft jaws in a bench vice, as shown
in Figure 4.
3. Tighten Adjusting Nut (5-7) by turning clockwise with
adjusting tool, then loosen by turning counterclockwise
until all spring load is removed.
4. With adjusting tool, slowly tighten the Adjusting Nut (5-7)
until it just touches the disc springs - you will note a large
increase in resistance when the nut comes up against the
disc springs. At this point the Adjusting Nut is bearing on
the Disc Springs with no pre-load.
Item P/N Description Qty.
7 JSE1 0014-7 Adjusting Nut 1
11 JSE1 0014-11 Housing 1
17 JSE1 0014-17 Socket Set Screw 11
11
X
Depth micrometer
7
17
Figure 5
5. Arrange a depth micrometer and measure the distance
“X” from the safety element Housing (5-11) base, to the
face of the Adjusting Nut (5-7). This is equivalent to the
zero setting on the Torque vs. Depth setting graph.
Make a scribe mark on the adjusting nut face to note
the position of this measurement and make all future
measurements on the scribe mark.
6. Read off the graph, the depth setting for the required
Torque, and add this to dimension “X”.
7. Using the micrometer depth gauge, slowly tighten Nut
until the required depth is reached. This safety
element is now set to the required Torque setting.
8. Remove safety element from vice.
9. Tighten Set Screw (5-17) to lock Nut (5-7).
4

5

Phone: [phone]
Fax: [phone]
www.brunelcorp.com
1304 Twin Oaks Street
Wichita Falls, TX 76302
Publication: WWJSE0253DC0 4-10