Wheeler-Rex 68115 Use and care manual

Wheeler Mfg. Div Rex Intl USA Inc.
3744 Jefferson Road •Ashtabula, OH 44004
Tel: [phone]
Fax: [phone]
[email protected]
www.wheelerrex.com

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The 68115 features a new of type safety control switch. It combines the reversing switch with a
trigger type engaging switch in a manner that the operator cannot reverse the direction of rotation
without first releasing the trigger switch.
The operation of this switch is very simple, to change the direction of rotation of the machine,
simply release the trigger switch and then slide the reverse switch to either the forward or reverse
position. The machine is then ready for normal operation by depressing the trigger switch.
Care in Servicing . . . . . .
The 68115 power drive is an “on the job” tool. It is designed for everyday use and for trouble-free
operation. The frame is made of high strength cast aluminum alloy.
Lubrication . . . . . .
The bearings in the motor are of the sealed type and are lubricated. No additional lubricant is
required.
Gears . . . . . .
The gear housings on the 68115 power drive are extra large and should normally contain
enough grease for the life of the tool. However, should the tool be subjected to severe usage,
provision has been made through two grease fittings to supply additional lubricant. One of these
is on the gear case cover, just ahead of the motor, which supplies the reduction gears and the
other is at the side of the frame for lubricating the worm gear.
The grease originally supplied in the tool is a special hi-temperature grease No. 1 consistency,
readily obtainable from any of the major oil companies.
Care of the Motor . . . . . .
The motor brushes should be inspected at least once a year, according to the usage of the
machine. Always be sure to see that the brushes are returned to their original side and the
position from which they were taken. This can be done by marking the brush with a red pencil
before it is removed, to indicate the side from which it is taken.
Be sure to keep the motor clear of dust and dirt by cleaning it with an air hose from time to time.
Caution . . . . . .
Your 68115 is designed to give satisfactory service with ordinary treatment. Do not drop as this
may cause damage.
Some Operating Hints . . . . . .

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10696 Adapter for 12R Drop Head Dies
Other products available to use
with the 68115 power drive.
Telescoping Valve Keys
Quick disconnect pull pins make adjustments fast and easy. Both a manual handle and a 1” square
power adapter are included.
2” square female drive fits most standard valves.
Available as:
8806 6 Foot Telescoping Valve Key
8808 8 Foot Telescoping Valve Key
88024 2 Foot Extension
Extends your 8806 to 8808
10709 1” Square Female Adapter
13968 Rising Stem Torque Adapter21389 Safety Adapter Assembly 10709 Hydrant Nut

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Item Part No Description Qty
1 19711 FRAME - POWER DRIVE (MACHINING) 1
2 10361 GEAR COVER (MACHINING) 1
3 10360
BEARING
CAP 1
4 10424 GASKET 1
5 10354 MOTOR
PINION 1
6 10356 PINION SHAFT 1
7 10358 WORM 1
8 10364 WEAR RING 2
9 10365 SPACER 1
10 10391 BEARING 1
11 11106 RETAINING RING 1
12 10385 WOODRUFF KEY NO. 3, USA STD 404 1
13 10384 WOODRUFF KEY NO. 213 2
14 10357 SPUR
GEAR 1
15 10355 INTERMEDIATE GEAR 1
16 10389 BEARING 1
17 10388 BEARING 1
18 11435 LOCK NUT 1
19 10390 BEARING 1
20 5854 BEARING LOCK WASHER, W03 1
21 10362 WORM GEAR COVER 1
22 10420 GASKET 1
23 10359 WORM GEAR (MACHINING) 1
24 700953 POWER DRIVE HANDLE EXTENSION 1
25 221389 CORD SET 1
26 275488
GREASE
FITTING 2
27 276651 1/4-20 x 1/2" STAINLESS STEEL BHCS 9
28 275021 1/4-20 x 5/8" SOCKET HEAD CAP SCREW 2
29 275715 1/4-20 x 1 1/4" SHCS 2
30 10419 -136 O-RING (BUNA) 1
31 908095 1/4-20 x 1/4" CUP POINT SET SCREW 2
32 10386 3/16 DIA x 1 1/2" ROLL PIN 2
33 15690 MOTOR 1/2 HP, 115 V 1
34 10767 GROMMET-RUBBER 1
35 276820 CORD PROTECTOR 44-76-0140 1
36 1903 1/4-20 x 1" SHCS 6
37 729 1/4-20 THIN ESNA NUT 4
38 277147 HANDLE & SWITCH KIT 1
39 276804 8-16 x 1 SLOTTED TORX HEAD 06-82-7326 3
40 11107 STEEL RETAINING RING 1
41 4181 1/4-20 x 3/4" SHCS 6

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Handle Assembly for Power Drive
Handle assembly sold complete. No separate parts
provided. This drawing is for information only.

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Item Part No Description Qty
1 12952 ADJUSTING NUT 1 2 15575 SPRING 1 3 700984 ADAPTER MACHINED 1 4 700997 ADAPTER PLATE 1 5 13965 SQUARE DRIVE 1 6 12948 PAWL 2 7 12949 RATCHET DOG 2 8 276129 3/4 WASHER 1 9 275070 #10-24 x 5/8" SHCS 4
10 560081 1/4-20 x 3/4" HHCS 6 11 276819 1/4-20 x 1 3/8" HHCS 2 12 11274 FINGER LOCK WASHER 2 13 275104 #10 SPLIT LOCK WASHER 4 14 275105 1/4" SPLIT LOCK WASHER 6 15 10713 3/16" FLAT WASHER 2 16 5306 SPRING WASHER 2 17 276093 COTTERLESS HITCH PIN 1

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2 Sets of
Slots
21389 Rising Stem Torque Adapter
Make sure the finger lock washers are inside
of the body
There are two (2) drive tabs on the unit.
This is the bottom view of the 68115 Power Drive. There are two
(2) sets of slots located on the bottom drive gear.
Attaching the 21389 Safety Adapter Assembly
Body
Finger Lock Washers
Finger
Lock
Washers
Drive tab (one here and one
on opposite side
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Push the “Finger Lock Washers” out over the drive gear. This keeps the
21389 torque adapter attached to the 68115 Power Drive.
Flip the Power Drive over with the torque adapter inside of the
drive gear.
With the power drive & torque adapter upside down, place the torque
adapter inside of the power drive. Drive tabs should be properly
placed in the drive gear slots of the 68115 Power Drive.
Drive Tab - shown
properly located in
drive gear slots
Lock Washers
See Page 14 for proper
spacing of counter magnet
See Page 28 for proper
alignment of counter magnet
Attaching the 21389 Safety Adapter Assembly continued...
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Check for proper clearance between the Counter (located on the Power Drive) and
the counter magnet (located on the torque adapter. There should be 3/16” gap
between the counter and the magnet.
Stem has engraved graduations of
50 ft lbs increments.
Side 1 shown
Stem has engraved graduations of
50 ft lbs increments.
Side 2 shown
Loosen collar screw with a 3/16” Allen wrench (not provided)
Collar Screw - tighten
Attaching the 21389 Safety Adapter Assembly continued...
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Back the adjusting collar off to start with minimal tension on the spring. Clutch will “pop” as the
drive gear turns in either direction. To increase the torque, turn the adjusting collar clockwise.
Slowly increase the adjusting collar until there is enough torque to turn the valve without having the
clutch slip. If the clutch has slipped, make sure it is re-set before increasing the torque.
The Ratchet Dog and Pawl are wearable items. Be sure to inspect
these before each use. Replace when the corners are rounded and
worn.
Clutch shown in the set position
Ratchet Dog
Pawl
Clutch is shown in
the “set” position
Attaching the 21389 Safety Adapter Assembly continued...

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Clutc
h is
Clutch shown in the “popped” position
Turn the collar to increase the torque
Tighten the collar screw with the Allen wrench once desired torque has been met. If this collar screw is
not tightened before use, it may vibrate loose and the torque may change and the collar screw may be
lost.
Attaching the 21389 Safety Adapter Assembly continued...
Collar Screw

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Drive Tabs
2 Sets of
Slots
13968 Rising Stem Torque Adapter
Note the position of the “Finger Lock Washers”
There are two (2) drive tabs on the unit.
This is the bottom view of the 68115 Power Drive. There are two
(2) sets of slots located on the bottom drive gear.
Attaching the 13968 Rising Stem Torque Adapter
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14
Tabs shown
properly located
in drive gear
slots
With the power drive & torque adapter upside down, place the torque
adapter inside of the power drive. Drive tabs should be properly
placed in the drive gear slots of the 68115 Power Drive.
Flip the Power Drive over with the torque adapter inside of the
drive gear.
Push the “Finger Lock Washers” out over the drive gear. This keeps the
13968 torque adapter attached to the 68115 Power Drive.
Attaching the 13968 Rising Stem Torque Adapter continued...

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Check for proper clearance between the Counter (located on the Pow-
er Drive) and the counter magnet (located on the torque adapter.
There should be 3/16” gap between the counter and the magnet.
Attaching the 13968 Rising Stem Torque Adapter continued...

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Rising Stem Hand Wheel Adapter
13970 Rising Stem Hand Wheel Adapter
Adapter plate has many holes to fit different hand wheel spoke
configurations.
Bottom view with swing clamps open.
Swing clamps can be installed to swing from either direction.
Swing clamp with thumb screw. Loosen thumb screw enough to
allow swing clamp to mover freely. When attached on hand
wheel, make sure thumb screw is properly seated in the swing
clamp groove.
Thumb Screw
Seat
Brackets can be turned around to
accommodate larger hand wheels.

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Male square drive, located on the hand wheel adapter.
Power drive with torque adapter placed on the hand wheel
adapter.
Female square drive, located on the torque adapter.
Female
Male
Rising Stem Hand Wheel Adapter continued...

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Adjusting the Torque
Each control road has numbers stamped on both sides of it. The
numbers are 50 ft/lb increments. The top of the nut should be level
with the line scribed on the control rod
Back each adjusting nut off to start with minimal tension on each
spring. Clutch will “pop” as the drive gear turns either direction. To
increase the torque, simply turn the nut clockwise with a 3/4” box
wrench. Adjust each nut equally. Slowly increase each nut until there
is enough torque to turn the valve. You want to have just enough
torque to drive the valve without having the clutch slip.
NOTE: Even though the drive gear turns, the counter will not count
until there is enough torque to drive the valve wheel.

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Item Part No Description Qty
1 701242 PLATE 1 2 701244 MALE DRIVE ADAPTER 1 3 701246 SPOKE DRIVER 3 4 277102 3/8 DIA x 1 1/4 LONG SHOULDER BOLT 4 5 1020 5/16-18 x 1" HEX HEAD CAP SCREW 6 6 701247 SWING CLAMP 3 7 275952 SHOULDER SCREW 3/8 x 1/2" LONG 3 8 6511 THUMB SCREW 3 9 701159 SMALL NAME PLATE 1
10 276203 METAL TAK 2 11 701306 PADDLE 3
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