(Some component assembly required. See component assembly sections.)
Visit the Snap-on web site, www.snapon.com, for vehicle application
information and complete listing of available adapters.
ZBJP1B rev B 06/11/2014
2
SAFETY INFORMATION
IMPORTANT SAFETY INSTRUCTIONS
This manual contains important safety and operating instructions for
the Snap-on® Ball Joint Press Master set. Refer to the information in
this manual as required for safe operation.
READ ALL INSTRUCTIONS
Read all the instructions in this manual. Read, understand and follow
all safety messages and instructions in this manual, and on all ball
joint press part components. Safety messages in this section contain
a signal word, a three-part message, and in some cases, an icon.
Safety symbols, when present, give a graphical description of the
potential hazard or how to avoid potential hazard.
WARNING
Wear safety goggles, user and bystander.
Be sure all adapter-to-adapter connections are secure.
Avoid misalignment of ball joint press assembly when
tightening pressure screw on ball joint and control arm.
If misalignment occurs, STOP tightening screw.
Unthread screw until assembly is loose. Properly realign
press assembly on ball joint and control arm.
WARNING
Refer to manufacture’s service manual for properly supporting and
raising of vehicles in a safe and secure manner.
ZBJP1B rev B 06/11/2014
3
FIGURE - 1
FIGURE - 2
ME7A209A
ME9A34
BJP1-2
ME7A208A
BJP1-14A
Ball Joint Press Component Assembly
Insert steel ball (ME9A34) into opening of pressure screw (BJP1-2) as shown in FIG.
Secure steel ball inside screw by inserting small snap ring (ME7A209A) into internal
snap ring groove of screw as follows:
1. Place snap ring partially into groove while compressing ring so that the ends
overlap as shown in FIG. 1.
2. Press ring into screw opening until ring snaps securely into groove.
WARNING
Insert large snap ring (ME7A208A) into internal snap ring groove of each of the (11)
adapters in the parts list on page one (adapters BJP1-5A through BJP1-16A) as
follows:
1. Place snap ring partially into groove while compressing ring so that the ends
overlap as shown in FIG. 2.
2. Press ring into adapter opening until the ring snaps securely into groove.
WARNING
ZBJP1B rev B 06/11/2014
4
BJP1F
ME7A207
BJP1-1A
BJP1-17
FIGURE - 3
Ball Joint Press Component Assembly
Slide sleeve adapter (BJP1-1A) into hole of press frame (BJP1F) and secure with
retaining ring (ME7A207) as shown in FIG. 3. Use snap ring pliers with proper tip
size. Thread grease fitting (BJP1-17) into tapped hole of press frame as shown using
5/16” socket.
WARNING
Maintenance
The pressure screw threads need to be wiped clean and re-lubricated with chassis
grease on a regular basis. Use grease fitting (installed on screw side arm of frame)
to apply grease to the screw threads.
BJP1 - Operating Information
The BJP1 ball joint master set is designed to be used without removing the control
arm from the vehicle on most cars and trucks that have press-fit type ball joints.
NOTE: Some vehicles have the upper ball joint spot-welded to the control
arm. The weld must be cut before attempting to remove the ball joint.
ZBJP1B rev B 06/11/2014
5
CONTROL
ARM
BJP1F
BJP1-2
ADAPTER
ADAPTER
BJP1-3A
BALL JOINT
FIGURE - 4
BJP1-1A
WARNING
Operating Instructions
Ball Joint Removal
(Refer to the safety information section for required safety instructions.)
1. Refer to the proper automotive service manual used for repair procedures on the specific vehicle
being serviced. Follow indicated procedures for removing all suspension components to obtain
clear access to the vehicle’s ball joint and control arm.
2. Refer to application chart to select the proper adapters for removing most types of ball joints on
most vehicle makes and models.
3. Thread pressure screw (BJP1-2) into end of frame. Insert ball joint pressure pad (BJP1-3A) into
pressure screw. (Force pressure pad completely down into pressure screw.)
4. Snap the selected adapters onto adapter sleeve (BJP1-1A) and ball joint pressure pad as shown in
FIG. 4.
5. Position press assembly over ball joint and control arm, as shown in FIG. 4.
6. Tighten pressure screw until removal adapters are snug against ball joint and control arm. Check
that the entire assembly is properly aligned. If not, STOP tightening screw, then loosen assembly
and re-align.
7. Apply torque to pressure screw until ball joint has been pressed out of control arm and into
receiving adapter.
ZBJP1B rev B 06/11/2014
6
ADAPTER
PRESS
ASSEMBLY
BALL JOINT
ADAPTER
CONTROL
ARM
FIGURE - 5
BJP1-6A Extension
(Some Applications)
WARNING
Operating Instructions
Ball Joint Installation
(Refer to the safety information section for required safety instructions.)
1. Clean knuckle and control arm. Coat bore of control arm with a suitable lubricant.
2. Insert replacement ball joint into control arm bore as straight as possible and align properly in
bore.
3. Refer to application chart to select the proper adapters for replacing most types of ball joints on
most vehicle makes and models.
4. Snap selected adapters into place in the same manner as in the ball joint removal procedure. Use
adapter BJP1-6A between pressure pad (BJP1-3A) and adapter if additional length is needed, as
shown in FIG. 5.
5. Position press assembly over ball joint and control arm, as shown in FIG. 5.
6. Tighten pressure screw until installation adapters are snug against ball joint and control arm.
Check that the entire assembly is properly aligned. If not, STOP tightening screw, then loosen
assembly and re-align.
7. Apply torque to pressure screw until the ball joint flange is securely seated against face of control
arm bore.
ZBJP1B rev B 06/11/2014
7
FIGURE - 6
DRIVE SHAFT ASSEMBLY
PRESS ASSEMBLY
U - JOINT
BJP1-4A
U-JOINT PRESSURE
PAD
UJP1 - Operating Instructions
The UJP1 universal joint set is designed to replace U-joints, either on or off the vehicle, on most cars and
trucks.
Universal Joint Removal
(Refer to the safety information section for required safety instructions.)
1. If necessary, remove ball joint pressure pad from pressure screw. Then insert universal joint
pressure pad (BJP1-4A) into pressure screw. (Force pressure pad completely down into pressure
screw.)
2. Securely support the drive shaft yoke assembly. Remove all external and/or internal locking rings.
3. If necessary, select one or a combination of adapters (BJP1-1A, BJP1-7A, BJP1-8A) to assist in U-
joint replacement.
4. Position press assembly around drive shaft yoke and align pressure pad with face of needle bearing
caps, as shown in FIG. 6 and FIG. 7.
5. Tighten pressure screw until one side of U-joint has been pressed completely out of yoke assembly.
6. Reposition press assembly, in the same manner as step-4, and tighten screw to remove the