Rotex 70 Series Technical specifications

70 SERIES DRIVE HEAD ASSEMBLY
NO. 25200
LUBRICATION - DRIVE HEAD
Location:
Filler spout is located on the inspection plate assembly on
opposite side from pinion shaft (119).
Oil:
ISO grade 150 hydraulic oil with rust and oxidation inhibitors
and anti-wear additives. Viscosity to be 150-220 cSt @ 40 °C. The
base oil viscosity at the bearing operation temperature must be
a minimum of 40 cSt.
Quantity:
Four gallons (15.2 liters) – Drain oil by removing plug (82) from
the housing assembly (77) and two plugs (87) in the pump
sump assembly (84). Remove breather vent (127) to equalize
pressure when draining.
Check oil flow at sight tube (92) located on inspection plate
assembly (94). Oil flow will be a small stream and begin
approximately one minute after startup.
Oil Change Interval:
Every 4000 operating hours
LUBRICATION - CRANKPIN BEARING
Location:
Grease at single fitting located on top of crankpin.
Grease:
Extreme pressure (EP) multipurpose type with NLGI No.2 rating
and base oil viscosity of 160-240 cSt @40°C (nominal 875 SUS
@100°F). The minimum viscosity index of the base oil must be 95.
CAUTION: DO NOT USE GREASE CONTAINING MOLYBDENUM
DISULFIDE ADDITIVES BECAUSE BEARING WILL BE DAMAGED.
NOTE: FOR BEARING OPERATING TEMPERATURES MORE THAN
140°F (60°C) THE BASE OIL VISCOSITY MUST NOT BE LESS
THAN 40 CST AT THE BEARING OPERATING TEMPERATURE.
Quantity:
25 grams or approximately 25 pumps from a standard
lever-type grease gun
Interval:
Every 750 operating hours
NOTE: THE LUBRICANTS AND SERVICE INTERVALS SPECIFIED
ARE FOR NORMAL OPERATION IN AREAS BETWEEN 40°F
AND 140°F (4°C-60°C). CONSULT ROTEX IF BEARING
TEMPERATURES ARE MORE THAN 140°F (60°C) OR THE
MACHINE IS OPERATED UNDER SEVERE CONDITIONS.
MAINTENANCE INSTRUCTIONS
©2016 ROTEX Global, LLC
Effective April 2016
www.rotex.com

70 SERIES DRIVE HEAD ASSEMBLY
NO. 25200
The 70 Series Rotex drive head has been carefully designed
to require a minimum of maintenance. All rotating parts are
mounted on anti-friction bearings, and parts which are subject to
wear are designed to be replaceable.
Repair work on the driving mechanism should be done in an
area relatively free of dust. Refer to the exploded drive head
assembly drawings when following the instructions below, and
prior to disassembling the mechanism. When making a complete
overhaul of the driving mechanism, it is generally good practice
to replace all bearings.
REMOVING DRIVE HEAD FROM MACHINE
1. Disconnect the discharge end horizontal drag link from the
box frame.
2. Remove grease fitting and threaded tube assembly (1A+1B)
and dust cover (2).
3. Remove lock wire (3) and eight cap screws (4) from the
clamping sleeve (5).
4. Place three of the removed cap screws in the tapped holes
(not shown on the drawing) provided in the clamping sleeve
(5), and use them as push screws to loosen and remove the
sleeve from the head end plate (6).
5. Remove the belt guard and v-belts. Inspect the v-belts for wear
or deterioration at this time.
6. Lift the box frame assembly up and clear of the drive head.
7. Remove the drive head from the base of the machine after
removing the mounting nuts and bolts.
8. Drain oil by removing drain plug (82) from the housing
assembly (77) and two drain plugs (87) in the pump sump
assembly (84).
DISASSEMBLY OF DRIVE HEAD
CRANKPIN ASSEMBLY REMOVAL
1. Remove lock wire (20) and 12 cap screws (19) and lock washers
(18) from the crankshaft (17) and remove
crankpin assembly.
2. Remove baffle (15A) from the crankshaft.
3. Remove gasket (16) from the crankshaft.
CRANKPIN BEARING REMOVAL
1. Remove flat head screw (15) and crankpin bearing spacer lock
(14) from crankpin bearing housing (9).
2. Remove snap ring (11) from the crankpin.
3. Press the crankpin out of the crankpin bearing (10).
4. Remove felt seal (8) from the crankpin.
5. Press the crankpin bearing from the crankpin bearing housing.
MAINTENANCE INSTRUCTIONS
REMOVAL OF PINION SHAFT ASSEMBLY
1. Remove ROTEX sheave (111), bushing (110), and key (120)
from the pinion shaft (119).
2. Remove the inspection hole plate (94) from the drive head
housing (77) by removing ten cap screws (96) and lock
washers (97). Remove the gasket (95) from the inspection
hole plate (94).
3. Remove the oil seal cap (107) from the drive head housing
by removing the 10 cap screws (109) and lock washers (108).
If the felt seal (102) remains on the pinion shaft, remove and
replace it in the oil seal cap.
4. Remove lock wire (125), seven cap screws (124) and lock
washers (123) in the pinion shaft housing (122).
5. Pull the pinion shaft assembly out of the drive housing. Care
should be taken at this time not to damage the shims (121).
They should be used in reassembly unless new shims are
available. If the pinion shaft assembly does not come out
easily, drive the pinion shaft out of the drive housing by
tapping from the pinion end with a long piece of wood.
DISASSEMBLY OF PINION SHAFT ASSEMBLY
1. Remove cap (101) from pinion shaft housing (122) by
removing lock wire (105) and five cap screws (104) and lock
washers (103).
2. Remove lock nut (100) and lock washer (99) from the
pinion shaft (119).
3. Drive pinion shaft (119) and pinion and inboard bearing
(117) out of the pinion shaft housing (122) by tapping from
the sheave end.
4. Remove lock wire (112), three cap screws (113), lock
washers (114) and bearing clamp plate (115) from the pinion
shaft (119).
5. Remove the beveled pinion (116) from the pinion shaft and
remove key (118).
6. Pull the inboard bearing (117) from the pinion shaft.
7. Pull the outboard bearing (98) out of the pinion shaft
housing (122).
REMOVAL OF CRANKSHAFT ASSEMBLY
1. Remove pump sump assembly (84) by removing 10 cap
screws (86) and lock washers (85).
2. Remove lock wire (76), four cap screws (75) and lock washers
(74), and remove oil pump assembly from the oil pump drive
flange (56).
3. Remove the eight cap screws (31) and lock washers (32) from
the drive head cover (33).
4. By means of the lift yokes on the drive head housing cover, lift
the crankshaft assembly straight up and out of the housing.
2

DISASSEMBLY OF OIL PUMP
1. Remove three cap screws (72) and separate the oil pump
housing cover (62) from the oil pump body (73).
2. Remove the snap ring (63).
3. Remove the eccentric ring (66) and outer geroter (65). Remove
friction plug (68) and spring (67).
4. Remove inner geroter (64).
5. Remove Woodruff key (71) from the pump shaft (70).
6. Remove bottom snap ring (63).
7. Remove pump shaft (70) from oil pump body (73).
DISASSEMBLY OF CRANKSHAFT ASSEMBLY
1. Remove oil pump drive flange (56) by removing lock wire (59)
and three cap screws (58) and lock washers (57).
2. Remove lower rest bearing (53) from crankshaft (17).
3. Remove lower bearing spacer (52) from crankshaft.
4. Remove minor balance weight casting (49) and lower bearing
(51) from crankshaft.
5. Remove bearing (51) from minor balance weight casting.
6. Remove bearing (47) from crankshaft. It this bearing comes
out with the minor balance weight casting, remove it from
the casting.
7. Remove major balance weight assembly (38) from the
crankshaft and remove flat head Allen Head screw (22) and
crankshaft key (21).
8. Remove major balance top sleeve (25) from major balance
weight casting.
9. Remove oil baffle (26) from drive head cover (33) by removing
lock wire (28) and eight cap screws (29) and lock washers (27).
10. Remove drive head cover (33) from the crankshaft (17).
11. Remove upper crankshaft bearing (23) from the crankshaft.
12. The beveled ring gears (43 and 48) are bolted to the two
balance weights, and will be removed with the balance
weights.When the drive head has been completely
disassembled, all parts should be checked, and worn or
damaged parts should be replaced.
DRIVE HEAD ASSEMBLY
After inspecting and replacing worn and damaged parts, the
drive head should be reassembled as follows:
CRANKSHAFT ASSEMBLY
1. Check the fit of the crankshaft key (21) in the keyways of the
crankshaft (17) and the major balance flange (39).The key
must be a tight fit in both of these keyways. Any looseness will
require replacement of the worn part.
2. Clean out the oil hole through the center of the crankshaft (17)
by means of a wire rod with a cloth wrapped around the end.
3. Place the drive head cover (33) on the crankshaft.
4. Apply a light coat of motor oil to the inside surface of the drive
head cover and on the crankshaft.
5. Place the upper crankshaft bearing (23) on the crankshaft
and force into the drive head cover and onto the crankshaft
bearing journal.
6. Bolt the oil baffle (26) to the drive head cover using eight cap
screws (29) and lock washers (27). Run lock wire (28) through
the drilled heads of the cap screws. NOTE: Lip of oil baffle
must face away from the drive cover.
7. Insert the crankshaft key (21) in the crankshaft keyway and
lock in place with Allen Head screw (22).
8. Drive the major balance top sleeve (25) into the top of the
major balance weight (38).
9. Fit the major balance weight flange (39) into the major
balance weight (38).This is a force fit, and the flange may have
to be hammered with a soft hammer to force it in place.
10. Bolt the major balance flange (39) to the major weight with
6 cap screws (41) and lock washers (40). Run lock wire (42)
through the drilled heads of the cap screws.
11. Apply a light oil lubricant to the crankshaft.
12. By means of a hoist, lower the major balance weight casting
down on the crankshaft. Care should be taken to guide the
housing onto the crankshaft key.
13. Make certain that the seating surfaces of both the bevel ring
gear (43) and the major balance flange (39) are free of dirt,
debris and burrs. Bolt the bevel ring gear to the major balance
flange with 12 cap screws (45) and lock washers (44). Run lock
wire through the drilled heads of the cap screws. NOTE: Gears,
including the pinion, must be replaced in matched sets only.
14. Press the minor balance bearing (47) onto the crankshaft (17)
and force it down on the shaft until it is up against the major
balance flange (39).
15. Place the minor balance bearing spacer (50) on the crankshaft,
resting on the minor balance bearing (47).
16. Make certain that the seating surface of both the bevel ring
gear (48) and the minor balance weight casting (49) are free
of dirt, debris and burrs. Bolt the bevel ring gear to the minor
balance weight with 12 cap screws (45) and lock washers (44).
Run lock wire through the drilled heads of the cap screws.
17. By means of a hoist, lower the minor balance weight casting
(49) on the crankshaft and fit the casting on the minor
balance bearing (47).
18. Place the roller bearing (51) in the minor balance weight
casting (49) and press in place.
19. Place the lower bearing spacer (52) on the crankshaft against
the roller bearing (51).
20. Press the spherical roller bearing (53) onto the crankshaft. This
bearing should be pressed onto the shaft until it is up against
the lower bearing spacer.
21. Bolt the oil pump drive flange (56) to the bottom of the
crankshaft with three cap screws (58) and lock washers (57).
Run lock wire through the drilled heads of the cap screws.
OIL PUMP ASSEMBLY
1. Insert the pump shaft (70) through the pump body (73).
2. Place the lower lock ring (63) on the shaft.
3. Place the Woodruff key (71) in the shaft.
4. Place the inner geroter (64) on the shaft.
5. Place the top lock ring (63) in place on the shaft.
6. Place spring (67) and friction plug (68) in the outer
geroter (65).
3

7. Place the outer geroter (65) and eccentric ring (66) into the
pump body (73).
8. Install housing cover (62) on the assembly and bolt together
with three cap screws (72). Run lock wire through the drilled
heads of the cap screws.
PINION SHAFT ASSEMBLY
1. Check that the pinion shaft key (118) is a tight fit in the
keyway of both the pinion shaft (119) and the pinion gear
(116). Wear in the key or keyways will require replacement of
the worn parts.
2. Press the inboard bearing (117) onto the end of the pinion
shaft (119).
3. Install the beveled pinion (116) on the pinion shaft (119) and
lock in place with key (118).
4. Bolt the bearing clamp plate (115) to the end of the pinion
shaft (119) with three cap screws (113) and lock washers (114).
Run lock wire (112) through the drilled heads of the cap screws.
5. Press the outboard bearing (98) into the pinion shaft
housing (122).
6. Press the pinion shaft (119) into the housing, from the pinion
end, through the outboard bearing (98).
7. Install lock washer (99) and lock nut (100) on the sheave end of
the pinion shaft and tighten against the outboard bearing.
8. Attach cap (101) to the pinion shaft housing with 5 cap screws
(104) and lock washers (103). Run lock wire (105) through the
drilled heads of the cap screws.
CRANKPIN ASSEMBLY
1. Hand pack the crankpin bearing (10) with grease.
2. Apply oil to the outer race of the bearing.
3. Press the bearing into the crankpin bearing housing using an
8¼ in. diameter x ½ in. thick (210 mm x 13 mm) steel plate so
pressure is applied to the outer race only. The bearing will stop
on a machined ledge in the in the housing.
4. Turn the crankpin upside down so the shaft is up.
5. Apply oil to the felt seal (8) and install it in the crankpin groove.
6. Lift the crankpin bearing housing and bearing over
the crankpin.
7. Press the housing and bearing onto the crankpin using
a 4¼” ID x 5¼” OD (108 mm ID x 133 mm OD) steel pipe.
Apply pressure to the inner bearing race only.
8. Install the snap ring (11).
9. Install the crankpin bearing spacer (13), spacer lock (14)
and screw (15).
10. Fill the space between the bearing and bottom of crankpin
housing with grease.
11. Install the crankpin bearing assembly to the drive weight using
12 cap screws (19) and new lock washers (18).
DRIVE HEAD FINAL ASSEMBLY
1. Install the lower bearing rest casting (60) into the bottom of
the drive head housing, and bolt into place with 10 cap screws
(79) and lock washers (78).
2. Place the shims (55) and the lower bearing support collar (54)
into the lower bearing rest casting.The lower bearing support
collar is held in place by a self-locking pin (61) in the lower
bearing rest casting.
NOTE: THE SAME THICKNESS OF SHIMS WHICH WAS
REMOVED FROM THE DRIVE SHOULD BE USED AS A
STARTING POINT IN REASSEMBLY.
3. Apply Permatex Sealant (33A) to top cover flange. Insert guide
pins in holes in housing used for bolting top cover in place.
Position gasket (37) in place over guide pins on housing.
4. Lift the crankshaft assembly by means of two hoists attached
to the two lifting rings in the top cover and suspend it in
an upright position. Tap downward on the outer edge of
the minor weight to ensure it is completely seated on its
bottom bearing.
5. Rotate the minor balance weight 180 degrees opposite of the
major balance weight and lock in place by forcing a wooden
wedge between the two bevel ring gears.
6. Lower the crankshaft assembly into the drive head housing
by means of two hoists attached to the lift rings.When the
top cover comes within six inches of the top of the drive
housing, insert guide pins through the top cover holes,
screwed into the top of the drive head housing. (See Step 3)
These pins will allow the crankshaft assembly to be lowered
into place with the flange holes in alignment.
7. Lower the crankshaft assembly into place, guiding the
spherical roller bearing (53) into the lower bearing rest
casting (60).
8. Bolt the cover (33) to the drive head housing (77) by means of
8 cap screws (31) and lock washers (32). Run a chain through
the two lifting yokes on the cover. Place a hydraulic jack on
top of the crankshaft and jack against the chain in order to
seat the bottom crankshaft bearing.While applying pressure
with the jack, tap lightly on the cover and underside of the
drive housing.
9. Remove the wooden blocks from the ring gears, and position
the balance weight as follows:
The two balance weights must be in their correct relationship.
The major balance is keyed to the crankshaft, and therefore is
always in correct position.
The minor balance weight is free to rotate and must be
placed in the proper position prior to engaging the pinion
and gears.
The positioning of the balance weights in the drive head will
depend upon the mounting of the drive head on the screener.
Figure 1 shows the correct positioning for each of the four
possible drive mountings.
To get the balance weights to move in the proper position,
lift the opposite side of the drive head housing and allow
the balance weights to swing into their correct position by
gravity. When the balance weights are in their proper position,
they should be locked in place by means of a wooden wedge
4

5
placed between the two ring gears.The bevel pinion can then
be engaged with the two ring gears.
10. With shims (121) in place, insert the pinion shaft assembly
into the side of the drive head housing, and bolt in place with
seven cap screws (124), and washers (123).
SETTING CLEARANCE BETWEEN
GEARS AND PINION
The backlash between the ring gears and pinion should be set
to the figures in Table 1, depending on the method being used.
The vertical adjustment for gear alignment is accomplished
by means of shims (55) which are placed between the lower
bearing rest casting (60) and the lower bearing support collar
(54).
The horizontal adjustment for backlash between the pinion and
the gears is accomplished by means of shims (121) between the
pinion shaft housing (122) and the drive head housing.
Table 2 shows the color coding for shim thickness.
To check the backlash between gears, first lock the pinion shaft
by clamping the shaft to a threaded rod which has been inserted
in one of the tapped holes in the pinion housing. If measuring
directly on the gear teeth, insert a dial indicator into the drive
head housing through the inspection port, so that the indicator
probe is in contact with the face of a tooth on the bottom ring
gear.
If using the ROTEX Backlash Checking Kit, thread the rod into
the tapped hole in the side of the minor weight hub and tighten
slightly. The rod should protrude through the inspection port at
right angles to the machined face of the inspection port. Mount
the magnetic back indicator on the inspection port face with the
indicator probe in contact with the threaded rod (see Figure 3).
NOTE: The threaded rod must not be used to move the weights
while taking backlash readings. Doing so will result in highly
erroneous readings.
Attempt to move the minor balance weight casting and read the
deflection on the dial indicator.
Take a backlash measurement on the upper ring gear by
applying the steps listed above to the major weight (see Figure
2). Move the crankshaft and read the deflection on the dial
indicator.
Once this has been done, rotate both the minor balance casting
and the major balance casting 180 degrees, and then take
another reading.
If the readings on the bottom gear are too high or the top gear
too low, shims must be added under the lower bearing rest to
raise the crankshaft assembly. If the readings on the bottom gear
are too low or the top gear too high, shims must be removed
from under the lower bearing rest. Removal or addition of shims
under the lower bearing rest requires removal of the pinion and
lifting of the crankshaft assembly.
Right or Left Hand Drive - Balance weights must be positioned
one above the other 90° to center line of pinion shaft.
BALANCE WEIGHT POSITIONS FOR
DRIVE HEAD REASSEMBLY
Figure 1
Pinion Shaft
Left-Hand Drive
Pinion Shaft
Front Drive
Pinion Shaft
Rear Drive
Pinion Shaft
Right-Hand Drive
Major Weight
Minor Weight
Major Weight
Minor Weight
Machine
Centerline
Machine
Centerline
FIGURE 2

6
NOTE: Changing shims under the bearing rest by .003’ will change
backlash on each gear by .0015” to .002”when reading directly
on the gear tooth. When using the ROTEX Backlash Kit, changing
shims by .003 will change backlash readings by .003” to .004”.
If both the upper and lower gear backlash readings must be raised
(or lowered), this can be done by changing the number of shims
on the pinion housing flange.
NOTE: Changing shims by .005 will change the backlash
reading on each gear by .001 when reading directly on the gear
tooth. When using the ROTEX Backlash Kit, changing shims by .005
will change each backlash reading by .002.
Make sure the weights are set, as described in Step 9 of the Drive
Head Final Assembly section, any time the pinion assembly is
removed and installed.
If difficulty is encountered in obtaining suitable clearances, it is
frequently because of the parts on the crankshaft have not been
pulled down tight or the bottom thrust bearing (53) is not seated
properly in the lower bearing rest casting (60). In addition, the
cover for the drive head housing should be down tight, and the
pinion shaft assembly must be all the way in place and the cap
screws down tight when taking measurements.
After the proper clearances have been set, make sure that the
drive head cover is bolted down tight, and that the pinion shaft
assembly is bolted tightly to the housing. Run lock wire through
the drilled heads of the cap screws installed in the pinion
shaft assembly.
DRIVE HEAD FINAL ASSEMBLY (CONTINUED)
1. Run lock wire through the 10 cap screws (79), holding the lower
bearing rest casting to the bottom of the drive head housing.
2. Bolt the oil pump assembly to the oil pump drive flange (56)
with four cap screws (75) and lock washers (74). Run lock wire
(76) through the drilled heads of the cap screws.
3. Apply Permatex Sealant on the threads of the oil drain plug
(87) and insert in the oil pump sump assembly (84). Install drain
plug (82) in housing (77).
4. Apply Permatex Sealant to the top flange of the oil pump sump
assembly (84) and install gasket (83) on the flange.
5. Fasten the oil pump sump (84) to the bottom of the drive head
housing by means of 10 cap screws (86) and lock washers (85).
6. Add four gallons (15.2 liters) of ISO grade 150 hydraulic oil to
the drive head and replace breather vent.
7. With the use of a crank arm, rotate the crankshaft until oil is
forced up by the oil pump through the center of the crankshaft.
Rotate the crankshaft in the opposite direction and again check
for oil flow. If there is no oil flow or oil flowing in only one
direction, check the oil pump for proper assembly.
8. Apply Permatex Sealant to the top flange of the crankshaft (17)
and place the gasket (16) and baffle plate (15A) in place.
9. Lower the crankpin assembly into place on the crankshaft
flange, and bolt into place with 12 cap screws (19) and lock
washers (18). Run lock wire through the drilled heads of the
cap screws.
10. Install the oil seal cap (107) with felt seal (102) and gasket (106)
on the pinion shaft and bolt in place with 10 cap screws (109)
and lock washers (108).
11. Install oil sight tube (93) and gaskets (92 and 94) and oil sight
tube cap (91) on inspection plate weldment (95) by means of
cap screw (88), flat washer (89) and clamp bolt gasket (90).
12. Place gasket (96) on the inspection plate weldment (95) and
install the inspection plate on the drive head housing with ten
cap screws (97) and conical lock washers (98).
INSTALLATION OF DRIVE HEAD ON MACHINE
1. Bolt the drive head assembly down tightly to the machine base.
2. Lower the box frame onto the crankpin (7).
3. Bolt the clamping sleeve (5) to the crankpin with eight cap
screws (4) and new 5/8” internal tooth lock washers. Make
sure that the mating surfaces of the clamping sleeve and the
crankpin bearing are in good condition to ensure a tight fit.
Run lock wire (3) through the drilled heads of the cap screws.
4. Install crankpin cover (2), crankpin cover bolt (1B) and grease
fitting (1A).
5. Reconnect the discharge end drag link assembly to the
box frame.
6. Install the ROTEX sheave (111), bushing (110) and key (120)
on the pinion shaft.
START UP OF MACHINE
Start the machine slowly, and check for excessive vibration.
If there is excessive vibration, recheck the balance weights to
make sure they are properly set. If there is no excessive vibration,
allow it to run for two to three minutes and check to observe a
continuous oil flow in the sight glass in the inspection port cover.

7
Assembly No. 25200, Rev. 6H
Effective S.O. 75148
70 SERIES DRIVE HEAD ASSEMBLY
NOTE #1: 70 Series Drive Heads shipped prior to December 1983 have oil lubricated crankpin assemblies. Field conversion kits are available
from ROTEX INC. to convert 70 Series Drive Heads from oil lubricated crankpins to the current grease lubricated design.
Conversion kit no. 93525 consists of item nos. 1A, 1B and 15A. Drawing nos. 92935 and 92936 are included for installation instructions.
NOTE #2: Hardware needed to mount drive head to base: 11716-2-Expansion Bolt Assembly
16404-8-1" NC Nut
91508-4-1 x 4-1/2 NC Cap Screw
91511-4-1 x 3-1/2 NC Cap Screw

70 SERIES DRIVE HEAD ASSEMBLY PARTS LIST
8
Item Part No. Qty Description
1A* 8784 1 Grease Fitting
1B* 130320 1 Crankpin Cover Bolt
2* 25238 1 Crankpin Cover
3* 6408 1 Lock Wire - 36” (91 cm)
4* 7554 8 5/8” x 2-1/2” NF Cap Screw DH
5* 25237 1 Clamping Sleeve
6* – – Head End Plate (part of box frame)
7* 157790 1 Crankpin
8* 22845 1 Felt Seal – 5/16” sq. x 32-13/16”
9* 317100 1 70 Gear / DA / S Crankpin Bearing Housing
10* 10934 1 Crankpin Bearing
11* 157786 1 Snap Ring
— — — —
13* 11628 1 Crankpin Bearing Spacer
14* 11629 1 Crankpin Bearing Spacer Lock
15* 2362 1 Screw, FH – 5/16” NF x 3/4” Lg.
15A* 92788 1 Baffle Plate
16* 11521 1 Crankpin Bearing Gasket
17 11490 1 Crankshaft Assembly
18* 120630 12 5/8” conical lock washer
19* 6437 12 5/8” x 1-1/2” NF HH Cap Screw DH
20* 6408 1 Lock Wire – 72”
21 11687 1 Crankshaft Key
22* 98838 1 3/8” x 7/8” NC Socket Head Screw
23 11649 1 Bearing
25 25225 1 Major Balance Weight Sleeve
26 11627 1 Oil Baffle
27 3600 8 3/8” Internal Tooth Lock Washer
28 6408 1 Lock Wire – 48”
29 9008 8 3/8”x 1” NF HH Cap Screw DH
— — — —
31 2637 8 5/8”x 2-1/2” NF HH Cap Screw
32 120630 8 5/8” Conical Washer
33 120194 1 Drive Head Cover Assembly
34 2637 4 5/8”x 2-1/2” NF HH Cap Screw
35 27346 2 Machined Lift Yoke
37 75758 1 Gasket
38 25226 1 Major Balance Weight
39 25227 1 Major Balance Weight Flange
40 5941 6 3/4” Internal Tooth Lock Washer
41 12249 6 3/4”x 2-1/4” NF HH Cap Screw DH
42 6408 1 Lock Wire – 36”
43** 11441 1 Spiral Bevel Ring Gear
44 4038 24 1/2” Internal Tooth Lock Washer
45 7694 24 1/ 2”x 1-1/4” NF HH Cap Screw DH
46 6408 1 Lock Wire - 36"
47 11405 1 Bearing
48** 11441 1 Spiral Bevel Ring Gear
49 25228 1 Minor Balance Weight
50 11546 1 Minor Balance Weight Spacer
51 11648 1 Bearing
52 11544 1 Lower Bearing Spacer
53 10934 1 Bearing
54 11618 1 Lower Bearing Support Collar
55 79080 1 Shim Set (Shims as Required)
56 11556 1 Drive Flange – Oil Pump
57 161873 3 7/8” Conical Washer
58 12247 3 7/8”x 2-1/2” NF HH Cap Screw DH
59 6408 1 Lock Wire – 12”
60 25230 1 Lower Bearing Rest
61 32684 1 Spring Pin (Roll Pin)
Item Part No. Qty Description
62 27520 1 Pump Housing Cover
63 24015 2 Truarc Snap Ring #5108-62
64 34159 1 Inner Gerotor
65 34160 1 Outer Gerotor
66 34161 1 Eccentric Ring 24014 Assembly
67 34162 1 Spring
68 34163 1 Friction Plug
69 24017 1 5/32”dia. x 9/16” long Drill Rod
70 24011 1 Pump Shaft Assembly
71 24016 1 Woodruff Key #405
72 2911 3 3/8”x 1-1/4” NF HH Cap Screw
73 27519 1 Pump Housing Body
74 4038 4 1/2” Internal Tooth Lock Washer
75 6426 4 1/2”x 1-1/2” NF HH Cap Screw
76 6408 1 Lock Wire – 12”
77 11766 1 Drive Housing Assembly
78 120630 10 5/8” Conical Lock Washer
79 6437 10 5/8”x 1-1/2” NF HH Cap Screw DH
80 8990 1 1-1/4”NPT Pipe Plug
81 6408 2 Lock Wire – 36”
82 2471 1 1/2” Pipe Plug
83 11620 1 Gasket
84 11539 1 Pump Sump Assembly
85 15233 10 1/2” Conical Lock Washer
86 2915 10 1/2”x 1-1 /4” NF HH Cap Screw
87 2471 2 1/2” Pipe Plug
88 10321 1 3/8” x 2-1/2” NF HH Cap Screw
89 26858 1 3/8” Flat Washer - SS
90 12109 1 Gasket for Clamp Bolt
91 12100 1 Oil Sight Tube Cap
92 12108 1 Oil Sight Tube Gasket
93 12110 1 Oil Sight Tube – 1-11/16”long
94 12108 1 Oil Sight Tube Gasket
95 347644 1 Inspection Plate Weldment
96 6090 1 Gasket
97 2915 10 1/2” x 1-1/4” NF HH Cap Screw
98 15233 10 1/2” Conical Lock Washer
99 11647 1 Bearing
100 12147 1 Lock Washer W12
101 12146 1 Lock Nut N12
102 11518 1 Pinion Shaft Housing Cap
103 12246 1 Felt Seal
104 15233 5 1/2” Conical Lock Washer
105 7694 5 1/2” x 1-1/4” NF HH Cap Screw DH
106 6408 1 Lock Wire – 12”
107 6090 1 Gasket
108 25231 1 Oil Seal Cap Casting
109 159233 10 1/2” Conical Washer
110 2915 10 1/2” x 1-1/4” NF HH Cap Screw
111* 50600 1 Bushing SF 2-1/4” Dia.
112* 52672 1 Rotex Sheave 2CQ160
113 6408 1 Lock Wire – 12”
114 6437 3 5/8” x 1-1/2” NF HH Cap Screw DH
115 170286 3 5/8” Conical Serrated Lock Washer
116 8625 1 Clamp Plate
117** 11440 1 Pinion Gear
118 11647 1 Bearing
119 12145 1 Pinion Shaft Key
120 11519 1 Pinion Shaft
121 12148 1 Pinion Shaft Key
122 79081 1 Shim Set (Shims as Req'd)
123 25229 1 Pinion Shaft Housing
124 120630 7 5/8” Conical Lock Washer
125 6429 7 5/8” x 1-3/4” NF Cap Screw DH
126 6408 1 Lock Wire – 36”
127 347640 1 1” NPT Street Elbow
128 347641 1 1” NPT Breather Vent
The following items may
be ordered separately or
as a complete Crankpin
Bearing Assembly 317101
Oil Pump Assembly 24008
*These items are not part of the drive head assembly and must be ordered separately.
**Gears are supplied only in matched sets.