Paccar Braden PD12C Manual

1
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First 2 numbers indicate
year manufactured
WRITE HOIST SERIAL NUMBER BELOW
For serial number location see page 3
LIT2103 R6
July 2017
Printe d in USA
©2017 PACCAR Inc.
All rights reserved
Visit our Web site at www.paccarwinch.com for the most comprehensive collection of winch, hoist, and drive
information on the Internet. Most publications and specification sheets are available for downloading.
Hydraulic Hoist Series
PD12C, PD15B, PD17A
INSTALLATION, MAINTENANCE,
AND SERVICE MANUAL
PD12C,
PD15B, PD17A

2
Table of Contents
Foreword....................................................................................................................................................3
Explanation of Model Number...............................................................................................................3
General Safety Recommendations .........................................................................................................4
eory of Operation ................................................................................................................................5
Hoist Installation ......................................................................................................................................7
Recommended Fastener Torque.............................................................................................................9
Wire and Braided Rope Installation ......................................................................................................9
Two-speed Motor Case Drain Plumbing ............................................................................................10
Preventive Maintenance ........................................................................................................................10
Recommended Oil Change Information.............................................................................................11
Troubleshooting......................................................................................................................................12
Hoist Disassembly ..................................................................................................................................16
List of Components................................................................................................................................18
Exploded-view Drawing .......................................................................................................................19
Planet Carrier Service ............................................................................................................................20
Motor Support – Brake Cylinder Service............................................................................................22
Brake Clutch Service..............................................................................................................................26
Hoist Assembly .......................................................................................................................................28
Brake Valve Service ................................................................................................................................32
Reversing Direction of Drum Rotation...............................................................................................34
PD17A Rotation Indication Proximity Sensor...................................................................................36
Service Bulletin, Brake Piston Seal.......................................................................................................37
Metric Conversion Table .......................................................................................................................39

3
FOREWORD
Read this entire publication and retain it for future reference.
For inquiries regarding your BRADEN Planetary Hoist or this publication, please contact BRADEN Service Department at 918-
251-8511, Monday through Friday, 8:00 a.m. to 4:30 p.m. (CST).
e minimum service intervals specied are for operating hours of the prime mover.
e following service instructions have been prepared to provide assembly, disassembly and maintenance information for the
BRADEN Model PD12C, PD15B and PD17A series hoist. It is suggested that before doing any work on these units, all assembly
and disassembly instructions should be read and understood.
Some illustrations in this manual may show details or attachments dierent from your hoist. Some components have been re-
moved for illustrative purposes. Drawings in this manual represent a typical unit sold through our distribution channels. Some
hoists, particularly those sold directly to original equipment manufacturers (OEM), may dier in appearance and options.
Model numbers and serial numbers are located to the le
-hand side of the hydraulic motor, stamped into the base.
Always refer to the model number and serial number
when requesting information or service parts.
PD Power drum
12 12,000 lb. approximate rst-layer line pull
C Model series relating to design changes
29 Total gear reduction (other ratios include 21, 41, 59, 34, etc.)
064 Hydraulic motor displacement in cu. in./rev (Decimal point eliminated. Example 064 = 6.4 cu. in./rev)
02 Drum option (other drums include 01, 04, 05, 23 g, etc.)
U Underwound cable drum - optional
L Le-hand base - optional; blank designates standard right-hand base
1 Permits testing and inspection per API 2C for oshore cranes - optional
EXPLANATION OF MODEL NUMBER
PD 12 C 29 064 - 02 - U - L - 1
POWER
DRUM
MAX
RATING
DESIGN
SERIES
GEAR
RATIO
MOTOR
SIZE
DRUM
OPTION
OPTIONROTATION BASE

4
CAUTION – is emblem is used to warn against poten-
tial or unsafe practices which COULD result in personal
injury and product or property damage if proper proce-
dures are not followed.
GENERAL SAFETY RECOMMENDATIONS
Safety and informational callouts used in this manual include:
WARNING – is emblem is used to warn against hazards
and unsafe practice which COULD result in severe per-
sonal injury or death if proper procedures are not followed.
CAUTION
!
!
! WARNING !
Safety for operators and ground personnel is of prime concern. Always take the necessary precautions to ensure safety to others
as well as yourself. To ensure safety, the prime mover and hoist must be operated with care and concern by the operator for the
equipment and a thorough knowledge of the machine’s performance capabilities. e following recommendations are oered as
a general safety guide. Local rules and regulations will also apply.
1. Be certain equipment (boom, sheave blocks, pendants,
etc.) is either lowered to the ground or blocked securely
before servicing, adjusting, or repairing hoist.
2. Be sure personnel are clear of work area BEFORE operat-
ing hoist.
3. Read all warning and caution tag information provided
for safe operation and service of hoist.
4. Inspect rigging and hoist at the beginning of each work
shi. Defects should be corrected immediately.
5. Keep equipment in good operating condition. Perform
scheduled servicing and adjustments listed in the “Pre-
ventive Maintenance” section of this manual.
6. An equipment warm-up procedure is recommended for
all start-ups and essential at ambient temperatures below
+40°F (4°C). Refer to “Warm-up Procedure” listed in the
“Preventive Maintenance” section of this manual.
7. Operate hoist line speeds to match job conditions.
8. Leather gloves should be used when handling wire rope.
9. Never attempt to handle wire rope when the hook end is
not free. Keep all parts of body and clothing clear of cable
rollers, cable entry area of fairleads and hoist drum.
10. When winding wire rope on the hoist drum, never attempt
to maintain tension by allowing wire rope to slip through
hands. Always use “Hand-Over-Hand” technique.
11. Never use wire rope with broken strands. Replace wire
rope.
12. Do not weld on any part of the hoist.
13. Use recommended hydraulic oil and gear lubricant.
14. Keep hydraulic system clean and free from contamina-
tion at all times.
15. Use correct anchor for wire rope and pocket in drum.
16. Do not use knots to secure or attach wire rope.
17. e BRADEN designed wire rope anchors are capable of
supporting the rated load when installed properly. For
additional safety, ALWAYS maintain a minimum of ve
(5) wraps of wire rope on the drum.
18. Never attempt to clean, oil or perform any maintenance
on a machine with the engine or prime mover running,
unless instructed to do so in this manual.
19. Never operate hoist controls unless you are properly posi-
tioned at the operators station and you are sure personnel
are clear of the work area.
20. Assure that personnel who are responsible for hand sig-
nals are clearly visible and that the signals to be used are
thoroughly understood by everyone.
21. Ground personnel should stay in view of the operator
and clear of hoist drum. Do not allow ground personnel
near hoist line under tension. A safe distance of at least
1-1/2 times the length of the cable should be maintained.
22. Do not exceed the maximum pressure, PSI (kPa), or ow,
GPM (LPM), stated in the hoist specications.
23. Install guarding to prevent personnel from getting any
part of body or clothing caught at a point where the cable
is wrapped onto the drum or drawn through guide roll-
ers.
24. “Deadman” controls, which automatically shut opow-
er to the hoist whenever the operator leaves his station,
should be installed whenever practicable.
25. Never allow anyone to stand under a suspended load.
26. Avoid sudden “shock” loads or attempting to “jerk” load
free. is type of operation may cause heavy loads, in ex-
cess of rated capacity, which may result in failure of cable
and hoist.

5
DESCRIPTION OF HOIST
e hoist has four basic component parts:
1. Hoist base
2. Hydraulic motor and brake valve
3. Brake cylinder and motor support
4. Drum assembly
e drum assembly consists of three basic assemblies:
1. Drum with integral ring gear
2. Output planetary gear set
3. Primary planetary gear set
e hydraulic motor is bolted to the motor support which in
turn is bolted to the brake cylinder and the base. e motor
end of the drum, running on a ball bearing, is supported by
the brake cylinder. e other end of the drum runs on a ball
bearing on the support bolted to the base. e ring gear for
both planetary sets is machined into the drum’s inside sur-
face.
HOIST OPERATION
e hydraulic motor drives the sun gear of the primary plan-
etary gear set through the splined inner race of the overrun-
ning brake clutch. When driven by the sun gear, the primary
planet gears walk around the ring gear in the drum and drive
the primary planet carrier.
e primary planet carrier drives the output planet sun gear
which, in turn drives the output planet gears. e output
planet carrier is splined to the bearing support and cannot
rotate. erefore, as the output planet gears are driven by the
sun gear, they will drive the ring gear/drum.
DUAL BRAKE SYSTEM - DESCRIPTION
e dual brake system consists of a dynamic brake system
and a static brake system.
e dynamic brake system has two operating components:
1. Brake valve assembly
2. Hydraulic motor
e brake valve is basically a counterbalance valve with good
metering characteristics. It contains a check valve to allow
free ow of oil to the motor in the hoisting direction and a
pilot operated, spring-loaded spool valve that blocks the ow
of oil out of the motor when the control valve is placed in
neutral. When the control valve is placed in the lowering
position, the spool valve remains closed until sucient pilot
pressure is applied to the end of the spool to shiit against
spring pressure and open a passage. Aer the spool valve
cracks open, (300-500 psi cracking pressure) the pilot pres-
sure becomes ow-dependent and modulates the spool valve
opening which controls the lowering speed. Refer to gures
1, 2, and 3.
THEORY OF OPERATION
e static brake system has three operating compo-
nents:
1. Spring Applied, Multiple Friction Disc Static Brake
2. Overrunning Brake Clutch Assembly
3. Hydraulic Piston and Cylinder
Motor
Control Valve
Pump
To Tank
Brake Valve
Static Brake
Medium
Pressure
Low
Pressure
High
Pressure
Figure 1
HOISTING
Motor
Control Valve
Pump
To Tank
Brake Valve
Static Brake
Medium
Pressure
Low
Pressure
High
Pressure
Figure 2
LOWERING 1

6
Motor
Control Valve
Pump
To Tank
Brake Valve
Static Brake
Medium
Pressure
Low
Pressure
High
Pressure
Figure 3
LOWERING 2
e static brake is released by the brake valve pilot pressure at
a pressure lower than that required to open the pilot operated
spool valve. is sequence assures that dynamic braking takes
place in the brake valve and that little, if any, heat is absorbed
by the friction brake.
e friction brake is a load holding brake only and has noth-
ing to do with dynamic braking or rate of descent of a load.
e overrunning brake clutch is splined to the primary sun
gear shabetween the motor and the primary sun gear. It will
allow this shato turn freely in the direction to raise a load
and lock up to force the brake discs to turn with the shain
the direction to lower a load. Refer to gures 4 and 5.
e hydraulic cylinder, when pressurized, will release the
spring pressure on the brake discs, allowing the brake discs
to turn freely.
Dual Brake System – Operation
When hoisting a load, the brake clutch which connects the
motor shato the primary sun gear, allows free rotation. e
sprag cams lay over and permit the inner race to turn free
of the outer race. Figure 4. e friction brake remains fully
engaged. e hoist, in raising a load, is not aected by any
braking action. Figure 1.
When the liing operation is stopped, the load attempts to
turn the primary sun gear in the opposite direction. is re-
versed input causes the sprag cams to instantly roll upward
and rmly lock the shato the fully engaged friction brake.
Figure 5.
When the hoist is powered in reverse, to lower the load, the
motor cannot rotate until sucient pilot pressure is present to
open the brake valve. Figures 2 & 3. e friction brake with-
in the hoist will completely release at a pressure lower than
that required to open the brake valve. e extent to which
the brake valve opens will determine the amount of oil that
can ow through it and the speed at which the load will be
lowered. Increasing the ow of oil to the motor will cause
the pressure to rise and the opening in the brake valve to en-
large, speeding up the descent of the load. Decreasing this
ow causes the pressure to lower and the opening in the brake
valve to decrease thus slowing the descent of the load.
When the control valve is shied to neutral, the pressure will
drop and the brake valve will close, stopping the load. e
friction brake will engage and hold the load aer the brake
valve has closed.
When lowering a load very slowly for precise positioning, no
oil ow actually occurs through the hoist motor. e pres-
sure will build up to a point where the brake will release suf-
ciently to allow the load to rotate the motor through its own
internal leakage. is feature results in a very slow speed and
extremely accurate positioning.
e friction brake receives very little wear in the lowering
operation. All of the heat generated by the lowering and stop-
ping of a load is absorbed by the hydraulic oil where it can be
readily dissipated.
Sprag Cams
Static Friction Brake Applied
Permits free sharotation
while hoisting
Sprag Cams
Static Friction Brake Applied
Load attempts to rotate shain opposite direction
Brake clutch locks sun gear shato friction brake
Figure 4
Figure 5

7
HOIST INSTALLATION
1. e hoist should be mounted with the centerline of the
drum in a horizontal position. e mounting plane of the
base may be rotated in any position around this center-
line.
2. Because of the design of the mounting base, the direction
of line pull should only be as shown in the above illustra-
tion. Line pulls in any other direction must be approved
by BRADEN Engineering.
3. When mounting the hoist, use all eight (8) mounting holes
and grade 8 capscrews and nuts. Tighten to recommend-
ed torque.
It is important that the hoist is mounted on a surface that
will not ex when in use, and cause binding of the gear
train. Binding in the gear train will result in accelerated
wear and heat. Also, be sure the hoist is mounted on a at
surface. If necessary, use shim stock to insure the mount-
ing surface is at within 0.020 in. (0.5 mm). Use stainless
steel shim stock as required.
4. e vent plug must always be located above the horizontal
centerline. If the hoist is mounted on a pivoting surface,
be sure vent plug remains above the centerline in all po-
sitions. If necessary, reposition bearing support and vent
plug as follows:
A. Remove bearing support bolts.
B. Rotate bearing support until vent plug
is positioned correctly and bolt holes
are aligned.
C. Evenly tighten bolts to recommended
torque.
5. Hydraulic lines and components that operate the hoist
must be of sucient size to assure minimum back-pres-
sure at the hoist motor ports. e hydraulic back-pressure
measured at the motor work ports must be less than 100
PSI (690 kPa) at full operating ow. Back-pressure in ex-
cess of 100 PSI (690 kPa) will shorten motor shaseal
life and partially release the load holding brake. e
standard hoist is supplied with the gear motor internal-
ly drained and connected the drain by-pass port on the
BRADEN brake valve. If high back-pressures are encoun-
tered, the motor should be externally drained directly to
the reservoir and the “DRAIN” port on the brake valve
capped. All piston motors MUST be drained directly
to the reservoir. e piston motor case drain port must
NEVER be exposed to more than 42 PSI (290 kPa); sha
seal damage will occur.
6. e hoist should be mounted perpendicular to an imagi-
nary line from the center of the drum to the rst sheave
to insure even spooling. Make certain the eet angle does
not exceed 1-1/2 degrees.
TO LOAD
OR
FIRST SHEAVE
A = B
A
B
1/2 MIN
1 1/2 MAX
O
O
FLEET ANGLE
CenterLine
VENT PLUG
ABOVE CENTERLINE
This hoist m er
SIONS
BROKE 4012
U.S.A.
SERIAL NO. 76381
BRADEN Gearmatic
HOIST
BRADEN Gearmatic Service Manual.
76381
SERIAL NO.
U.S.A.
BROKEN ARROW,OK.,74012
WINCH DIVISIONS
This hoist must be maintained per
HOIST

8
e directional control valve must be a three position, four-
way valve without detents and with a spring centered mo-
tor spool such that the valve returns to the centered posi-
tion whenever the handle is released, and both work ports
are open to tank (open center, open port).
7. High quality hydraulic oil is essential for satisfactory per-
formance and long hydraulic system component life.
HOIST BRAKE
BRAKE
VALVE
PUMP
CONTROL
VALVE
HOIST ASSEMBLY
W/BRAKE VALVE
& STATIC BRAKE
BR
DR
DO NOT use a control valve with any detents or latch-
ing mechanism that would hold the control valve in an
actuated or running position when the operator releases
the control handle. Use of the wrong type of control valve
could lead to unintentional operation of the hoist, which
could result in property damage, personal injury, or death.
WINCH BRAKE
BRAKE
VALVE
2-SPEED
SELECTOR
VALVE
PUMP
CONTROL
VALVE
WINCH ASSEMBLY
W/BRAKE VALVE
& STATIC BRAKE
T P
BR
DR
A
Oil having 150 to 330 SUS (30-60 cSt) viscosity at 104°F
(40°C) and viscosity index of 100 or greater will give good
results under normal temperature conditions. e use of
an oil having a high viscosity index will minimize cold-
start trouble and reduce the length of warm-up periods.
A high viscosity index will minimize changes in viscosity
with corresponding changes in temperature.
Maximum cold weather start-up viscosity should not ex-
ceed 5000 SUS (1000 cSt) with a pour point at least 20°F
(11°C) lower than the minimum temperature.
Under continuous operating conditions the tempera-
ture of the oil at any point in the system must not ex-
ceed 180°F (82°C). Optimum oil temperature is gener-
ally considered to be 120-140°F (49-60°C).
In general terms; for continuous operation at ambient
temperatures between 50 and 110°F (10 to 43°C) use ISO
46; for continuous operation between 10 and 90°F (-12
to 32°C) use ISO 32; for applications colder than 10°F
(-12°C), contact the BRADEN Service Department. e
use of multi-viscosity oils is generally not recommended.
8. e hydraulic oil lter should have a 10 micron nominal
rating and be full ow type and meet the requirements of
the hydraulic pump manufacturer.

9
ANCHORING WIRE ROPE
RECOMMENDED FASTENER TORQUE
Higher or lower torques for special applications will be specied such as the use of spanner nuts, nuts on shaends, jam nuts
and where distortion of parts or gaskets is critical.
Lubricated torque values based on use of SAE 30wt engine oil applied to threads and face of bolt or nut.
Avoid using thread lubricants (such as anti-seize compound) as the applied torque may vary by 10 - 40%, depending upon the
product used.
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


WIRE AND BRAIDED ROPE INSTALLATION
Take the free end of the wire rope and insert it through the
small opening of the anchor pocket. Loop the wire rope and
push the free end about half of the way back through the
pocket. Install the wedge, then pull the slack out of the wire
rope. e wedge will slip into the pocket and secure the wire
rope into the drum. e early style anchor wedge is designed
to accommodate several dierent sizes of wire rope. You may
anchor 7/16 and 1/2 in. (11 & 13 mm) wire rope by inserting
the wedge, large end rst. Anchor 9/16 and 5/8 in. (14 & 16
mm) wire rope by inserting the wedge, small end rst.
ANCHORING BRAIDED ROPE
Early Style
Wire Rope
Anchor
A special wedge is used to anchor 1 and 1 1/8 in. (25 & 28 m)
braided synthetic rope. e installation procedure is the same
as for anchoring wire rope.
CORRECT INSTALLATION INCORRECT INSTALLATION
Figure 7 Figure 8 Figure 9 Figure 10
Drive from
this side
Wedge and wire
rope fully seated in
pocket
Wedge not
fully Seated
Wedge pulled
too far through
anchor pocket
Must keep at least 5 wraps of wire rope
on cable drum at all times.

10
The following minimum service intervals are speci-

TWO-SPEED MOTOR CASE DRAIN PLUMBING
Some hoists with two speed gear motors may have been in-
stalled with the motor case drain connected to the drain port
of the brake valve. is system may result in accelerated mo-
tor shaseal wear and leakage. e following modication
should be made to the motor hydraulic piping to prevent this
type of seal damage.
1. Remove the motor case drain hose from the
brake valve drain port and install plug, Item 1,
into the valve port. Remove the hose from the
case drain port elbow, Item 4.
2. Install a new case drain hose, Item 2, onto
the motor case drain elbow, Item 4.
3. Install the tee adapter, Item 3, into the two-
speed motor shivalve drain port (identied
by long end cap).
4. Install the new motor case drain hose, Item
2, onto the tee adapter.
5. Install a case drain hose for the tee directly
to the reservoir. Minimum hose size is –6,
3/8 in. (9.5 mm). Maximum drain line back
pressure is 100 PSI (690 kPa) measured at the
motor case drain port.
ITEM DESCRIPTION QTY PART #
1 Plug, -4 ORB 1 25663
2Hose, 17-in. OAL
(-4 JIC Fml Svl/-4 Hose/ 1/8 NPT ml) 1 13707
3 Tee -4 (ORB Branch -4 JIC Run) 1 29078
1
2
3
PREVENTIVE MAINTENANCE
A regular program of preventive maintenance for your planetary hoist is strongly recommended to minimize the need for
emergency servicing and promote safe, reliable hoist operation.
Field experience, supported by engineering tests, indicate the three (3) service procedures listed below are the MOST critical
to safe, reliable hoist operation and must be observed.
• Regular Gear Oil Changes – every 1000 hours or six (6) months
• Use of Proper Gear Oil – recommended type for prevailing ambient temperature
• Periodic disassembly and inspection of all wear items.
1. OIL LEVEL
e gear oil level should be checked every 500 operating
hours or three (3) months, whichever occurs rst. To check
the oil level, remove the large plug located in the center of
the drum support. e oil should be level with the bottom
of this opening or approximately half-way up in a sight glass.
This is extremely important due to the accelerated

 If additional oil in needed, refer to “Recom-
mended Planetary Gear Oil”.

11
2. OIL CHANGE
e gear oil should be changed aer the rst one hundred
(100) hours of operation, then every 1,000 operating hours
or six (6) months, whichever occurs rst. e gear oil must
be changed to remove wear particles that impede the reliable
and safe operation of the brake clutch and erode bearings,
gears and seals. Failure to change gear oil at these suggested
minimum intervals may contribute to intermittent brake slip-
page which could result in property damage, severe personal
injury or death.
e gear oil should also be changed whenever the ambient
temperature changes signicantly and an oil from a dierent
temperature range would be more appropriate. Oil viscos-
ity with regard to ambient temperature is critical to reliable
brake clutch operation. Our tests indicate that excessively
heavy or thick gear oil may contribute to intermittent brake
clutch slippage. Make certain that the gear oil viscosity used
in your hoist is correct for your prevailing ambient tempera-
ture. Failure to use the proper type and viscosity of planetary
gear oil may contribute to brake clutch slippage which could
result in property damage, severe personal injury or death.
Refer to “Recommended Planetary Gear Oil” for additional
information.
3. VENT PLUG
e vent plug is located in the drum support as shown. It
is very important to keep this vent clean and unobstructed.
Whenever gear oil is changed, remove vent plug, clean in sol-
vent and reinstall.

4. HYDRAULIC SYSTEM
e original lter element should be replaced aer the rst
y (50) hours of operation, then every 500 operating hours
or three (3) months, or in accordance with the equipment
manufacturer’s recommendations.
5. WIRE ROPE
Inspect entire length of wire rope according to wire rope
manufacturers recommendations.
6. MOUNTING BOLTS
Tighten all hoist base mounting bolts to recommended
torque aer the rst one hundred (100) hours of operation,
then every 1000 operating hours or six (6) months, whichever
occurs rst.
7. WARM-UP PROCEDURES
A warm-up procedure is recommended at each start-up and
is essential at ambient temperatures below +40°F (4°C).
e prime mover should be run at its lowest recommended
RPM with the hydraulic hoist control valve in neutral allow-
ing sucient time to warm up the system. e hoist should
then be operated at low speeds, raise and lower, several times
to prime all lines with warm hydraulic oil, and to circulate
gear lubricant through the planetary gear sets.
8. INSPECTION
A. Bearings and Gears – Refer to
DISASSEMBLY OF Hoist, page 16; and
PLANET CARRIER SERVICE, page 20.
B. Brake Cylinder – Refer to MOTOR
SUPPORT – BRAKE CYLINDER SERVICE,
pages 22 and 23.
C. Brake Clutch – Refer to BRAKE CLUTCH
SERVICE, page 26.

Use of the proper planetary gear oil is essential to reliable
and safe operation of the brake clutch and obtaining long
gear train life.
For simplicity, BRADEN has listed one (1) readily available
product in each temperature range which has been tested
and found to meet our specications.
Failure to properly warm up the hoist, particularly under
low ambient temperature conditions, may result in tempo-
rary brake slippage due to high back pressures attempting
to release the brake, which could result in property dam-
age, severe personal injury or death.
Failure to use the proper type and viscosity of planetary
gear oil may contribute to intermittent brake clutch slip-
page which could result in property damage, severe per-
sonal injury or death. Some gear lubricants contain large
amounts of EP (extreme pressure) and anti-friction addi-
tives which may contribute to brake clutch slippage and
damage to brake friction discs or seals. Oil viscosity with
regard to ambient temperature is also critical to reliable
brake clutch operation. Our tests indicate that excessive-
ly heavy or thick gear oil may contribute to intermittent
brake clutch slippage. Make certain that the gear oil viscos-
ity used in your hoist is correct for your prevailing ambi-
ent temperature.

12
OIL CAPACITIES:
(PD12C/PD15B) 01, 02 & 22 DRUM - 6 PINTS (2.8 L) (PD12C/PD15B) 04, 05 & 23G DRUM - 7 PINTS (3.3 L)
(PD12C/PD15B) 06 DRUM - 18 PINTS (8.6 L) (PD12C/PD15B) 24G & 25G DRUM - 11.5 PINTS (5.4 L)
(PD17A) 27G DRUM - 20 PINTS (9.5 L)

If a hoist ever exhibits any sign of erratic operation, or load control diculties (i.e. load creeping or chattering) appropri-
ate troubleshooting tests and repairs should be performed immediately. Continued operation in this manner may result in
property damage, serious personal injury or death.
TROUBLESHOOTING
TROUBLE PROBABLE CAUSE REMEDY
A
e hoist will not lower the load or not
lower the load smoothly.
1. e problem could be a plugged or
loose pilot orice. e pilot orice is
a small pipe plug with a hole drilled
through it, located behind the pilot port
tting on the brake valve. If it becomes
plugged, it will prevent the pilot pres-
sure, from the manifold, from opening
the brake valve. If it becomes loose, it
will allow an unregulated amount of
oil in to operate the brake valve which
cause erratic brake valve operation.
2. e friction brake may not be releas-
ing as a result of a defective brake cyl-
inder seal.
NOTE: If the brake cylinder seal is de-
fective you will usually nd oil leaking
from the hoist vent plug.
1. Remove pilot hose and tting from
brake valve, then use a 5/32 inch Al-
len wrench to remove pilot orice. e
diameter of the orice is approximately
.020 inches. Clean and install pilot ori-
ce tightly in the brake valve.
2. Check brake cylinder seal as follows:
a. Disconnect the swivel tee from the
brake release port. Connect a hand
pump with accurate 0-2000 psi gauge
and shut-ovalve to the –4 J.I.C. tting
in the brake release port.
b. Apply 1000 PSI (6,900 kPa) to the
brake. Close shut-ovalve and let stand
for ve (5) minutes.
c. If there is any loss of pressure in ve
(5) minutes, the brake cylinder should
be disassembled for inspection of the
sealing surfaces and replacement of the
seals. Refer to “Motor Support-Brake
Cylinder Service”.
PREVAILING AMBIENT TEMPERATURE
o
F -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130
o
F
o
C -40 -30 -20 -10 0 10 20 30 40 50
o
C
SHADED TEMPERATURE RANGE IN THE CHART ABOVE NOT RECOMMENDED FOR SEVERE APPLICATIONS SUCH AS SUSTAINED
FAST DUTY CYCLES OR FREQUENT WINCHING.
TexacoShell
Meropa 220
Meropa 150
Omala S2 G 220
Omala S2 G 150
Chevron
Gear Compounds EP 220
Gear Compounds EP 150
PREVAILING AMBIENT TEMPERATURE
o
F -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130
o
F
o
C -40 -30 -20 -10 0 10 20 30 40 50
o
C
SHADED TEMPERATURE RANGE IN THE CHART ABOVE NOT RECOMMENDED FOR SEVERE APPLICATIONS SUCH AS
Mobil
Mobilgear 600 XP 220
Mobilgear 600 XP 150
Winches are factory filled with Mobilgear 600 XP 150 or equivalent. Consult your oil supplier for other equivalent
oils if required.
RECOMMENDED GEAR OIL
Omala S4 GX 150
Mobilgear SHC 150
Use gear oil detailed in Range A
Range A
Range B
Range C
Use gear oil detailed in Range B
Use gear oil detailed in Range C

13
3. Friction brake will not release as a
result of damaged brake discs.
3. Disassemble brake to inspect brake
discs. Check stack-up height as de-
scribed in “Motor Support-Brake Cylin-
der Service”.
A
e hoist will not lower the load or not
lower the load smoothly.
TROUBLE PROBABLE CAUSE REMEDY
B
Oil leaks from vent plug. 1. Same as PROBABLE CAUSE A2.
2. Motor seal may be defective as a
result of high system back pressure or
contaminated oil.
a. Vent positioned below oil level.
b. Oil expansion due to overheating.
1. Same as REMEDY A2.
2. System back pressure must not exceed
150 PSI (1,035 kPa). Inspect hydraulic
system for a restriction in the return line
from the control valve to the reservoir.
Be sure control valve and plumbing is
properly sized to hoist motor.
3. Oil analysis may indicate contami-
nation has worn motor shaand seal.
oroughly ush entire hydraulic sys-
tem and install new lters and oil. In-
stall new motor seal.
C
e brake will not hold a load with the
control lever in neutral.
1. Excessive system back pressure acting
on the brake release port.
2. Friction brake will not hold due to
worn or damaged brake discs.
3. Brake clutch is slipping.
1. Same as REMEDY B2.
2. Same as REMEDY A3.
3. Brake Clutch Slipping:
a. Improper planetary gear oil may
cause the brake clutch to slip. Drain old
gear oil and ush hoist with solvent.
oroughly drain solvent and rell hoist
with recommended planetary gear oil
listed in “Preventive Maintenance”.
b. Brake clutch may be damaged or
worn. Disassemble and inspect brake
clutch as described in “Brake Clutch
Service”.

14
TROUBLE PROBABLE CAUSE REMEDY
D
e hoist will not hoist the rated load. 1. e hoist may be mounted on an un-
even or exible surface which causes
distortion of the hoist base and binding
of the gear train. Binding in the gear
train will absorb horsepower needed to
hoist the rated load and cause heat.
2. System relief valve may be set too low.
Relief valve needs adjustment or repair.
3. Be certain hydraulic system tem-
perature is not more than 180 degrees
F. Excessive hydraulic oil temperatures
increase motor internal leakage and re-
duce motor performance.
4. Hoist line pull rating is based on 1st
layer of wire rope.
5. Rigging and sheaves not operating ef-
ciently.
1. Mounting Surface:
a. If necessary, use shim stock to level
hoist. Refer to “Hoist Installation”.
b. First loosen, then evenly retighten all
hoist mounting bolts to recommended
torque.
2. Check relief pressure as follows:
a. Install an accurate 0-4000 psi (27,580
kPa) gauge into the inlet port of the
brake valve.
b. Apply a stall pull load on the hoist
while monitoring pressure.
c. Compare gauge reading to hoist spec-
ications. Adjust relief valve as required.
NOTE: If pressure does not increase in
proportion to adjustment, relief valve
may be contaminated or worn out. In
either case, the relief valve may require
disassembly or replacement.
3. Temperature:
a. Same as remedies for PROBABLE
CAUSE D1 & D2.
b. Same as remedies for PROBABLE
CAUSE E2.
4. Refer to hoist performance charts for
additional information.
5. Perform rigging service as recom-
mended by crane manufacturer.
E
e hoist runs hot.
1. Same as PROBABLE CAUSE D1.
2. Be certain that the hydraulic system
temperature is not more than 180 de-
grees F. Excessive hydraulic oil temper-
atures may be caused by:
a. Plugged heat exchanger.
b. Too low or too high oil level in hy-
draulic reservoir.
c. Same as D2.
1. Same as REMEDY D1.
2a. oroughly clean heat exchanger
exterior and ush interior.
b. Fill/drain to proper level.
c. Same as REMEDY D2

15
TROUBLE PROBABLE CAUSE REMEDY
E
e hoist runs hot.
d. HYDRAULIC Pump:
d1. Same as REMEDY D2.
d2. Prime mover low on horsepower or
R.P.M. Tune/adjust prime mover.
d3. Check suction line for damage.
d4. If pump is belt driven, belts are slip-
ping. Replace/tighten belts.
d5. Pump worn. Replace pump.
3. Disassemble hoist to inspect/replace
worn parts.
d. Hydraulic pump not operating ef-
ciently.
3. Excessively worn or damaged inter-
nal hoist parts.
F
Hoist “chatters” while raising rated
load.
1. Same PROBABLE CAUSE as D2.
2. Hydraulic oil ow to motor may be
too low.
3. Controls being operated too quickly.
1. Same as REMEDY for D2.
2. Same as REMEDY for E2.
3. Conduct operator training as re-
quired.
G
e wire rope does not spool smoothly
on the drum.
1. e hoist may be mounted too close
to the main sheave, causing the eet
angle to be more than 1-1/2 degrees.
2. e hoist may not be mounted
perpendicular to an imaginary line
between the center of the cable drum
and the rst sheave.
3. Could possibly be using the wrong
lay rope. ere is a distinct advantage
in applying rope of the proper direc-
tion of lay. When the load is slacked
o, the several coils on the drum will
stay closer together and maintain an
even layer. If rope of improper lay is
used, the coils will spread apart each
time the load is removed. en, when
winding is resumed, the rope has a ten-
dency to crisscross and overlap on the
drum. e result is apt to be a attened
and crushed rope.
4. e hoist may have been overloaded,
causing permanent set in the wire rope.
1. Check mounting distance and eet
angle. Reposition hoist as required.
2. Refer to “Hoist Installation”.
3. Consult wire rope manufacturer for
recommendation of wire rope that best
suits your application.
4. Replace wire rope and conduct op-
erator/rigger training as required.

16
SERVICE PRECAUTIONS
• Before any part is removed from the hoist, all service instructions should be read and understood.
• Work in a clean, dust free area as cleanliness is of utmost importance when servicing hydraulic equipment.
• Inspect all replacement parts, prior to installation, to detect any damage which might have occurred in shipment.
• Use only genuine BRADEN replacement parts for optimum results. Never reuse expendable parts such as oil seals and O-
rings.
• Inspect all machined surfaces for excessive wear or damage . . . before reassembly operations are begun.
• Lubricate all O-rings and oil seals with gear oil prior to installation.
• Use a sealing compound on the outside surface of oil seals and a light coat of thread sealing compound on pipe threads.
Avoid getting thread compound inside parts or passages which conduct oil.
• oroughly clean all parts in a good grade of non-ammable safety solvent. Wear protective clothing as required.
Aer troubleshooting the hoist and its hydraulic system as covered in the “Troubleshooting” section, and the problem is deter-
mined to be in the hoist, use the following procedure to disassemble the hoist.
HOIST DISASSEMBLY
1. Remove the wire rope from the cable drum and align the
drain hole in the drum with a hole in the support side
plate before removing the hoses and mounting bolts. Af-
ter the hoist is removed from its mounting, thoroughly
clean the outside surfaces. To drain the oil, install a short
piece of 1 inch pipe in the larger threads of the drain hole.
If necessary, insert a bar into the anchor pocket and man-
ually rotate the drum in the direction to hoist a load until
the drain holes are aligned.
2. Use a 5/16 inch Allen wrench to remove the drain plug
through the pipe.
3. Begin disassembly by removing the oil level plug or sight
glass and standing the hoist on the bearing support end.
Tag and remove the hydraulic hoses that connect the
brake valve and manifold to the brake cylinder.
4. Remove the capscrews securing the motor, and lithe
motor othe hoist. Remove and discard the O-ring in-
stalled on the pilot of the motor.
5. Tag and remove the hoses and ttings from the brake cyl-
inder release port.
6. Remove the brake clutch assembly from the motor sup-
port. Refer to “Brake Clutch Service” for additional infor-
mation.
7. Remove the motor support capscrews and install two
(2) capscrews and a short piece of chain into the motor
mounting bolt holes. Using the chain as a handle, lithe
motor support out of the brake cylinder being careful to
avoid damaging the sealing surfaces. Remove and discard
the O-ring and backup ring from the motor support. Re-
fer to “Motor Support-Brake Cylinder Service” for addi-
tional information. Note the location of the brake release
port in relation to hoist prior to removing the brake cyl-
inder

17
8. Remove the brake cylinder capscrews and install two (2)
capscrews and a short piece of chain into the motor sup-
port mounting bolt holes. Using the chain as a handle,
lithe brake cylinder out of the drum and base, being
careful to avoid damaging the sealing or bearing surfaces.
Refer to “Motor Support-Brake Cylinder Service” for ad-
ditional information.
For PD15B hoists, the drum closure cannot be removed
through the opening in the base. If your hoist has a one-piece
cast base, remove the bearing support, as described in step 15,
and remove the drum from the base. en proceed with steps
9 thru 14. If your hoist has a three piece base, remove the mo-
tor end side plate and continue with step 9.
9. Using two heel type pry bars placed between the pri-
mary planet carrier and the drum closure, pry upward
to remove the drum closure. Remove and discard the O-
ring from the outside of the drum closure. Some drum
closures have 3/8-16 tapped liing eye holes that may be
used in place of the heel bars
10. Remove the seal and bearing from inside of closure.
11. Remove the primary sun gear and thrust washer from the
primary planet carrier.
12. Remove the primary planet carrier from the drum. Refer
to “Planet Carrier Service” for additional information.
13. Remove the output sun gear and thrust washer from the
output planet carrier.
14. Remove the output planet carrier from the drum. Refer
to “Planet Carrier Service” for additional information.
15. Stand hoist on motor end with bearing support up; then
remove eight (8) bearing support capscrews and bearing
support being careful to avoid damaging the sealing or
bearing surfaces.

18
16. Slide drum out of base onto a work bench and remove
seal and bearing from support end.
17. oroughly clean and inspect drum and base. Check
ring gear (machined into inside surface of drum) teeth
for nicks, spalling or excessive wear. Replace if wear is
greater than 0.015 in. (0.4 mm) when compared to un-
worn area of teeth.
BRADEN PD12C/ PD15B/ PD17A LIST OF COMPONENTS
ITEM

DESCRIPTION PART


000 Sprag clutch assembly (C
spl shaft)
81716 1
000 Primary planet carrier
assembly
82342 1
000 Planet carrier assembly 81845 1
000 Cable drum 28832 1
000 Hydraulic motor subassem-
bly (6.4 C.I.)
61704 1
000 Brake cylinder assembly,
4-bolt C
82266 1
000 Nameplate, CE 108591 1
000 Drive screw 11842 4
001 Brake cylinder 100035 1
002 Seal 25642 1
003 Pressure plate 25635 1
004 Piston backup ring 25636 1
005 Die spring 25644 12
006 850170 disc, friction 21036 7
007 Brake disk 100027 8
010 Primary planet carrier 100852 1
011 Primary planet gear 26466 3
012 Primary planet gear shaft 25614 3
013 Roller bearing 24175 3
014 Thrust washer 25361 6
015 Spirol pin 24113 3
016 Planet carrier 25602 1
017 Planet gear 26467 3
018 Planet gear shaft 25613 3
019 Roller bearing 25292 6
020 Bearing spacer 25443 3
021 Thrust washer 24306 6
022 Base 26344 1
023 Bearing support, SP only 106459 1
025 Cable drum closure 27866 1
026 Ball bearing 24110 2
027 Oil seal 24109 1
028 O-ring 76208 1
029 Seal, oil 22818 1
030 Retaining ring, external 70575 1
031 Thrust washer 40128 1
032 Motor support 100028 1
033 O-ring 10330 1
034 Output sun gear 100854 1
ITEM

DESCRIPTION PART


035 Primary sun gear 26479 1
036 Spacer 25637 1
037 Spacer, primary 25729 1
038 Spacer, output 25638 1
039 Spacer 26223 2
040 Capscrew 104174 20
041 Lockwasher 11026 16
042 Capscrew 29855 4
043 Thrust washer 40129 1
044 16166-16 O-ring plug, hex
head
31386 1
045  32411 1
046 Relief valve 7.5-15 PSI 18062 1
047 O-ring 24981 1
048 Backup ring 25643 1
049 Outer brake race 25075 1
050 Inner brake race 25609 1
051 Sprag bearing 27684 2
052 Thrust bearing 24581 2
053 21-B3-1 snap ring 12034 2
054 Sprag clutch 24839 1
055 Retaining ring 24506 1
056 Shipping plug, hydraulic 25403 1
057 Cable wedge 40130 1
058 Manifold 24779 1
059 O-ring 13838 1
060 Capscrew 21144 4
061 Capscrew 21134 4
062 Brake valve assy. - 1.25-61 81712 1
063 Hose assembly 25952 1
064 Hose assembly 13704 1
065 Adapter 25864 1
066  21163 1
067 Swivel tee 25748 1
068  25302 1
069 Reducer elbow 24236 1
071 Hose assembly 25935 1
072 Hydraulic motor, gear 25777 1
079 Side plate support end 27212 1
080 Side plate motor end 27213 1
083 Capscrew 103314 16
084 Lockwasher KEV1 12781 24

19
1
3
36
40
2
4
7
6
36
99
47
41
48
5
32
33
56
4142
25
26
28
29
24
44
46 39
23
30
27
26
45
57
21
17
19
20
19
21
15
18
14
11
13
14
15
12
35
31
37
10
43
34
38
16
91
90
95
92
97
96
94
93
22
50
55
53
52
49
53
52 51
54
51
61 64
63
68
69
59
62
72
66
64
65
59
67
58
60
41
70
To Item 1
BRAKE RELEASE
HOIST
LOWER
MOTOR
CASE
DRAIN
PD17A hoists use an internal
retaining ring (item 16, not
shown) to hold item 38 into
the output planet carrier
PD17A
hoists use
only 1 each
of items
52 and 53
due to the
shoulder
on item 50.
(shoulder
is toward
motor)
Retaining ring
(item 30) is
not used on
PD17A hoists
1 Piece Base
3 Piece Base

20
OUTPUT PLANET CARRIER
DISASSEMBLY
1. Remove the planet gears by driving the roll pins into the
center of the planet shas.
2. Use a punch to drive the roll pins from the planet shas.
Do not reuse the roll pins.
3. Now you can remove the planet shas, bearings, spacer,
thrust washers and gears. oroughly clean all parts and
inspect for damage and wear. e bearing rollers should
not exhibit any irregularities. If the rollers show any sign
of spalling, corrosion, discoloration, material displace-
ment or abnormal wear, the bearing should be replaced.
Likewise, the cage should be inspected for unusual wear
or deformation, particularly the cage bars. If there is any
damage that will impair the cage’s ability to separate, re-
tain and guide the rollers properly, the bearing should be
replaced. e thrust washer contact areas should be free
from any surface irregularities that may cause abrasions
or friction. e gears and shas should be inspected for
abnormal wear or pitting. Replace if necessary.
ASSEMBLY
1. Place the output planet carrier on workbench with splined
coupling side down. Install output thrust plate in center of
carrier.
PLANET CARRIER SERVICE
PD17A hoists have an internal retaining ring to hold the
thrust plate into the carrier. is retaining ring MUST be
properly installed and fully seated before the planet gears
are installed.
CAUTION
!
!