Meyer 2000 Series Training manual

512-22 W. Burr Oak Street • Centreville, Michigan 49032 U.S.A.
Phone: [phone] or 800-253-2076 • Fax: [phone] • Web site: www.meyerhydraulics.com
2000 Series
ETJ OPERATING and
SERVICE INSTRUCTION
Serial No. Purchase Date
Do not use the ETJ until the operator has read, and fully understands
the “OPERATING INSTRUCTIONS” section in this Manual.
July 1, 2004

TABLE OF CONTENTS
OPERATING THE ETJ
Lifting & Lowering the ETJ 3
Support Arms Use Instructions 4
Engine Support Head Use Instructions 5
MAINTAINING THE ETJ
Monthly Maintenance Schedule 6
Bi-Annual Maintenance Schedule 7
Hydraulic Oil Change Schedule 7
SERVICING THE ETJ
Symptoms & Cures Troubleshooting Section 9
Foot Valve Control Assembly 12
Hydraulic Valve Removal 12
Hydraulic Valve Assembly 13
Load Pistons Removal 15
Load Pistons Installation 16
Lifting Head Assembly 17
Air Valve Cover Assembly Notes 18
PARTS LIST
ETJ Under-the-Hoist Jack 19
ETJ-EH Engine Support Head 21
ETJ DRAWINGS
ETJ Main Frame Assembly 22
Air Valve Cover Assembly 23
Foot Valve Control Assembly 24
Lifting Head Assembly 25
Support Arm Assembly Configurations 26
ETJ-EH Engine Support Head 26
NOTE:
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Meyer Hydraulics Corp.
ETJ 2000 Series Operating & Servicing Instructions
OPERATING THE ETJ
Lifting & Lowering Instructions
1. No longer necessary.
2. Connect your filtered and dry compressed air supply to the ETJ’s Air Regulator (52). Protect your
investment! As with any air tool, the ETJ’s service life may be shortened by contaminates and
moisture being introduced through an improperly filtered shop compressed air supply.
3. Adjust the Air Regulator (52) and turn its knob until the Air Gauge (53) registers:
• 35-80 psi for working with transmissions, transaxles, power dividers, tanks, etc..
•120-160 psi for working with heavy loads such as engine/transaxle/support frame combinations
for FWD cars and other light vehicles. The ETJ has been designed to lift all of these assemblies,
with as little as 120 psi registered on the Air Gauge, to where the bottom of the load is almost
5 feet above the shop floor ... and most (but not all) can be raised another 20 inches when the
Air Gauge registers 145-160 psi. Tests show that with certain large 4WD transmission/transfer
combinations connected to the engine, up to 1,100 pounds of force may be neccessary to arc
the total power train high enough to install or remove the cross member.
>>>>>>>> NOTE! <<<<<<<<
It is always best to set the maximum air pressure 10-20% greater than that which is
required to lift the load, but no higher! In doing so, shop air is being used efficiently,
and the time necessary for the ETJ's Tank (1) to depressurize enough to lower a load
will be kept to an absolute minimum.
Never use more than 160 psi air pressure in your ETJ!
Page 3
Delivered Large Small
Air Piston Piston
PSI Capacity Capacity
40 313 160
80 726 419
120 1,138 679
160 1,558 938

Meyer Hydraulics Corp.
ETJ 2000 Series Operating & Servicing Instructions
4. For coarse adjustment of the ETJ height, step hard on the right (intake) side of the Foot Valve
Control (61) for lifting, or on the left (exhaust) side for lowering. This activates both the Air Valve
(47) and one of the Hydraulic Valves (71 or 72) at the same time. Within 0-3 seconds the Pistons
(3)(12) will begin their travel smoothly, but briskly. All movement will immediately stop the instant
the pressure is taken off the Foot Valve Control.
5. For fine adjustment of the ETJ height, step lightly on the right (intake) side of the Foot Valve
Control (61) for lifting (or the left (exhaust) side for lowering) until you feel a restriction (the bottom
of the Foot Valve Control has now come into contact with the Valve Rocker (77). This activates the
Air Valve (47) to pressurize or depressurize the ETJ’s Tank (1). Wait 3 seconds; and then begin to
increase your foot pressure slightly until the Load Piston (3 or 12) begins to travel at the speed you
want it to. A little practice makes perfect! The 3 second delay is necessary for the Tank air pressure
to become greater than that required to raise the load (or to become less than that required to
support the load) before the Hydraulic Valve (71 or 72) is actuated.
6. The Release Locking Pin (63) may be used when lowering the ETJ height only when there's no
load! Simply press down completely on the left (exhaust) side of the Foot Valve Control (61) and
push in the Pin until it can rest on top of the tab welded onto the side of the Tank (1). While
holding the Pin in, release the pressure on the Foot Valve Control. To release the Pin, simply press
down on the left (exhaust) side again; and the Pin will return to its original position and allow the
Foot Valve Control to return to its.
7. When you take your foot off the Foot Valve Control (61), lift your foot off instead of sliding it off.
This prevents the Foot Valve Control from rocking too far the other way and forcing the Air Valve
Kicker (80) to "toggle" the Air Valve (47) from an air intake mode to an air exhaust mode ....
or vice versa.
8. The Frame Tank (1) doesn’t need to be pressurized in order to maintain the height of a raised load.
You may disconnect the shop air anytime after the Frame Tank has been depressurized.
Return to Table of Content
Support Arms Use Instructions
I. If necessary, remove the ETJ-EH Engine Support Head (128) from the Upper Lifting Head (93); and
turn the Safety Tie-down Buckle (91) until it points upwards, thereby allowing the Safety Strap (90)
to be slung over a transmission or other load.
Always use the Safety Tie-down Strap to secure the load!
2. Attach the Transmission Support Arms (112) to the Upper Lifting Head (93) by following one of the
configurations shown in the ETJ Support Arm Assembly Configurations Drawing .... or through one
of your own configurations that meet your needs. WARNING! The Bolt (110 or 116) must have
a thread engagement of at least 7/16" in the Support Arm or the Retaining Nut (114).
Return to Table of Content
Page 4

Meyer Hydraulics Corp.
ETJ 2000 Series Operating & Servicing Instructions
Engine Support Head Use Instructions
1. If necessary, remove the Transmission Support Arms (112) from the Upper Lifting Head (93); and
turn the Safety Tie-down Buckle (91) until it points straight down. Hook the “J” Hook of the Safety
Tie-down Strap (90) into the the hole in the Upper Tilt Pivot Pin (91) from beneath; and wrap the
excess Strap around the Lower Rocker Weldment (94) to keep it out of the way.
2. Set the ETJ-EH Engine Support Head (128) over the Upper Lifting Head (93) to where the Support
Head holes line up with those in the Upper Lifting Head. Push four of the Retaining Bolts (110 or
116) through the Support Head; and then through the Upper Lifting Head. Tighten the Bolts in
place with the Nuts (114).
WARNING! The Bolts (110 or 116) must have a thread
engagement of at least 7/16" in the Retaining Nuts (114).
3. Always use the two Ratchet Safety Tie-down Straps (130) to secure the load! It is suggested that
the Ratchet Safety Tie-down Straps be slung over the engine with the "J" hooks dangling around its
bottom prior to raising the vehicle on the hoist.
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Page 5

Meyer Hydraulics Corp.
ETJ 2000 Series Operating & Servicing Instructions
MAINTAINING THE ETJ
Monthly Maintenance Schedule
1. Oil both sides of the Upper Tilt Pivot Pin (91) where it comes out of the Upper Lifting Head (93).
Tilt the Upper Lifting Head towards the threaded rod that!s anchored to it; and oil the Pivot Pin
where it pivots on the inside and outside of the. Lower Rocker Weldment (94).
2. Oil the Lower Rocker Pin (99) in between the Upper Piston (12) and the Lower Rocker Weldment (94).
3. Inspect both threaded rods that are anchored to the Upper Lifting Head (93) and the Lower Rocker
Weldment (94) and make sure they're free from dirt and grit Oil both liberally. If necessary, grease
the Pivoting Hex Anchors in both the Upper Lifting Head and the Lower Rocker Weldment at the
two Grease Fittings (98).
4. Have both Pistons (3)(12) completely lowered. Wipe off all dirt and debris on top of the Lower
Piston (3), the Lower Piston Cap (15) and the Tank Top (6). Now raise both Pistons to their full
height. Wipe off any dirt that may be on the "bare" portions of the Pistons. Spread a film of oil on
each Piston. Lower both Pistons completely and wipe off any excess oil.
5. Oil the Transport Handle (20) where it pivots on the Transport Handle Pin (19). Squirt a little oil on
the center vertical bar of the Air Valve Kicker (80) so the oil will ran down onto the Treadle Pivot Pin
(65) below.
6. Make sure the Air Valve Cover Bolts (55) and the Spring Compression Plate Bolt (66) haven’t become
loose. Do not over-torque!
7. Press the Foot Valve Control (61) completely down on the right (intake) side; and while its all the
way down, squirt a little oil on top of the Intake Valve Stem (72) where it goes into the Valve Base
of the Jack's Frame (1). Press down on the left (exhaust) side in the same way and oil the Exhaust
Valve Stem (71).
8. Press the Foot Valve Control (61) completely down on the right (intake) side; and while its all the
way down, spread grease on top of the toe of,the Exhaust Valve Rocker (77) (where it makes
contact with the bottom of the Foot Valve Control). While the Foot Valve Control is still all the way
down, reach down and try to loosen the Jam Nut (70) by hand that’s threaded onto the Exhaust
Valve Stem (71). If it turns, you'll need to go through the Valve Stem adjustment steps 11 and 12
found in the Hydraulic Valve Assembly section.
9. Do the same basic procedures as in step 8 above for the Intake Valve side.
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Page 6

Meyer Hydraulics Corp.
ETJ 2000 Series Operating & Servicing Instructions
Bi-Annual Maintenance Schedule
1. Grease the axle and oil the upper ball bearing race on each one of the Swivel Casters (24). Some
may find their ETJ rolls and casters better if they grease and oil the Swivel Casters more often.
2. Lower both Pistons (3)(12) completely. Lower the Frame Tank (1) air pressure to zero. The Foot
Valve Control (61) must be in its neutral position with the Release Locking Pin (63) not engaged.
Tilt the ETJ towards the side that has the Oil Filler Pipe Plug (28) until the Frame Tank is horizontal.
Disconnect the Tank Air Hose (44) from the 90 Degree Elbow Fitting (36/46) at the top of the
Frame Tank. Place a two gallon capturing pan under the Oil Filler Plug. Unscrew the Plug just
enough for any water to flow out. As soon as only oil comes out, re-tighten the Oil Filler Plug.
Reconnect the Tank Air Hose to the 90 Degree Elbow Fitting at the top of the Frame Tank. Do not
over-tighten as this can damage the hose end. Put the ETJ back upright
3. Lower both Pistons (3)(12) completely. Lower the Frame Tank (1) air pressure to zero. Unscrew the
Oil Filler Pipe Plug (28) on the side of the Frame Tank and check the oil level. If necessary, fill the
Tank with Hydraulic Jack Oil, Automatic Transmission Oil, or MIL-H-5606 Hydraulic Fluid until the oil
level reaches the bottom of the filler hole. The total oil capacity is 71⁄2quarts. Never overfill! If too
much oil is put into the Tank, oil will be exhausted with the air. Replace the Oil Filler Plug.
Return to Table of Content
Hydraulic Oil Change Schedule
1. The hydraulic oil should be completely changed once every 1 to 5 years-depending on how many
contaminates have been introduced into the ETJ through an improperly filtered compressed air
system. The ETJ uses 71⁄2quarts of either Hydraulic Jack Oil, Automatic Transmission Oil, or
MIL-H-5606 Hydraulic Fluid.
2. Lower both Pistons (3)(12) completely. Lower the Frame Tank (1) air pressure to zero. The Foot
Valve Control (61) must be in its neutral position with the Release Locking Pin (63) not engaged.
Tilt the ETJ towards the side that has the Oil Filler Pipe Plug (28) until the Frame Tank is horizontal.
Disconnect the Tank Air Hose (44) from the 90 Degree Elbow Fitting (36/46) at the top of the
Frame Tank. Place a two gallon capturing pan under the Oil Filler Plug. Unscrew the Plug and
drain all the oil.
3. Put the ETJ back upright and temporarily tighten the Oil Filler Plug (28) into the 90 Degree Elbow
Fitting (36/46) at the top of the Frame Tank (1). Do not over-tighten.
4. Tilt the ETJ toward the side that has the Air Regulator (52) until the Frame Tank (1) is horizontal.
Using a small funnel, pour in 7 quarts (1⁄2quart less than capacity) of the oil mentioned in step 1
above.
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Meyer Hydraulics Corp.
ETJ 2000 Series Operating & Servicing Instructions
5. Gently put the ETJ back upright and continue to fill the Frame Tank (1) until the oil level reaches the
bottom of the filler hole. Never overfill! If too much oil is put into the Tank, oil will be exhausted
with the air.
6. With a shop rag under the 90 Degree Elbow Fitting (36/46) at the top of the Frame Tank (1) to
catch a little oil, remove the Oil Filler Plug (28) and re-tighten it back into the filler hole on the side
of the Frame Tank. Reconnect the Tank Air Hose (44) to the above mentioned 90 Degree Elbow
Fitting. Do not over-tighten as this can damage the hose end.
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Page 8

Meyer Hydraulics Corp.
ETJ 2000 Series Operating & Servicing Instructions
SERVICING THE ETJ
Symptoms & Cures
The Pistons have become "jerky" or "jumpy"!
•WARNING! Do not operate the ETJ in this condition!
• The oil level in the ETJ's Tank (1) may have become so low that air now enters the cylinder
before the Pistons reach full extension;...or....some of the earlier 2000 Series ETJ's may also take
air into the cylinder when the Pistons (3)(12) are raised at full speed through most of their
stroke. The air is brought in when the Upper Piston (12) is within two inches of its
full extension.
• Remove any load from the top of the Support Arms (112) or Engine Support Head (128).
Raise both Pistons (3)(12) slowly to their fully extended position. Step down all the way on the
left side of the Foot Valve Control (61) until one of the Pistons lowers about one inch. Slowly
unscrew the Air Bleeder Plug (16) at the top of the Lower Piston (3) just enough to allow the
trapped air to escape. When a steady stream of oil flows out, re-tighten the Air Bleeder Plug.
•Lower both Pistons (3)(12) completely.Reduce the Frame Tank (1) air pressure to zero.
Unscrew the Oil Filler Pipe Plug (28) on the side of the Frame Tank and fill the Tank with
Hydraulic Jack Oil, Automatic Transmission Oil, or MIL-H-5606 Hydraulic Fluid until the oil level
reaches the bottom of the filler hole (the total capacity is 71⁄2quarts).
•If the ETJ took only a small amount of oil, it is advised that the operator refrain from rapidly
raising both Pistons (3)(12) to their full extension. Stopping for one to two seconds when the
Upper Piston (12) is three to six inches of its full extension will cure the internal vortex
phenomenon.
• If the “jerky” or “jumpy” condition returns soon after the corrective measures above are taken a
couple of times..., then there may be air or oil bypassing around the Dash 245 O-Ring (5).
Check with the factory for potential remedies.
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Meyer Hydraulics Corp.
ETJ 2000 Series Operating & Servicing Instructions
The ETJ will raise the load with the large Lower Piston (3), but not
the smaller Upper Piston (12)!
• The most common cause is that the load is too heavy to be raised with the delivered air
pressure into the Jack. Increase the delivered air pressure by adjusting the ETJ's Air Regulator
(52) upward. The ETJ has been designed to lift heavy loads such as engine/transaxle/support
frame combinations with as little as 120 psi registered on the Air Gauge (53), to where the
bottom of the load is almost 5 feet above the shop floor....and most (but not all) can be raised
another 20 inches when the Air Gauge registers 145-160 psi. Tests show that with certain large
4WD transmission/transfer combinations connected to the engine, up to 1,100 pounds of force
may be neccessary to arc the total power train high enough to install or remove the cross
member.
• The load may be severely off-set. The more a load is off-set, the more the friction will absorb the
lifting force.
• There may be a leak in the ETJ's air "piping". Press the Foot Valve Control (61) down on its right
(intake) side just enough to "toggle" the Air Valve (47). The Air Regulator (52) should be
adjusted to the highest pressure possible—but not over 160 psi. Listen for the "hiss" of air
escaping, or feel along the air path from the Air Regulator to the 90 Degree Elbow Fitting
(36/46) at the top of the Frame Tank (1).
•Make sure the Spring Compression Plate Bolt (66) hasn't become loose. Do not over-torque!
The ETJ's Pistons go up way too slowly or not at all....without a load!
•Check the shop air hose for restrictions.
•Check to insure the Air Gauge (53) registers at least 30 psi.
• Grab the Air Valve Kicker (80) just below the bottom of the Air Valve Cover (40). Move the Air
Valve Kicker to the left and right several times. Each time you should feel the toggle switch on
the Air Valve (47) "click" into position after moving it no more than 1/4 inch. If you don't,
something is wrong with the Air Valve, and it should be replaced at once.
Page 10
Delivered Large Small
Air Piston Piston
PSI Capacity Capacity
40 313 160
80 726 419
120 1,138 679
160 1,558 938

Meyer Hydraulics Corp.
ETJ 2000 Series Operating & Servicing Instructions
• Disconnect the Air Tank Hose (44) from the 90 Degree Elbow Fitting (36/46) at the top of
the Frame Tank (1). Thread your 1/4 inch n.p.t. air connector into the Elbow Fitting and
connect your shop compressed air directly to the connector (it is recommended that your air
pressure not exceed 60 psi for this test). Now press the Foot Valve Control (61) completely
down on the right (intake) side. If the Pistons (3)(12) go up normally, you have a blockage
in the ETJ's air "piping". The Air Regulator (52) should be checked first.
• Have the Foot Valve Control (61) in the neutral position and the Release Locking Pin (63) not
engaged. Check for proper Valve Stem adjustment as shown in the Hydraulic Valve Assembly
section, steps 11 and 12.
The ETJ slowly lowers the load steadily when it shouldn't!
•WARNING! Do not operate the ETJ in this condition!
• Make sure the Spring Compression Plate Bolt (66) hasn't become loose. Do not over-torque!
• Check for proper Valve Stem adjustment as shown in the Hydraulic Valve Assembly section,
steps 11 and 12 after the Foot Valve Control (61) is in the neutral position and the Release
Locking Pin (63) isn't engaged.
• There might be something between the Ball Bearing (74) and its seat in one of the ports in the
Base of the Frame (1). Or the Exhaust Valve Stem (71) may be slightly bent at the o-ring groove
and rubbing on the port wall. See the Hydraulic Valve Removal and Assembly sections.
•There is the possibility that the Valve Compression Spring (68) is too weak to properly hold the
Ball Bearing (74) against the seat to keep the exhaust port (left side) closed when there’s no air
pressure in the Tank (1).
•There’s a slight chance oil in the cylinder is getting past the Dash 245 O-ring (5) when there’s no
air pressure in the Tank (1).
The ETJ slowly raises the load steadily when it shouldn't!
• WARNING! Do not operate the ETJ in this condition!
• There might be something between the Ball Bearing (74) and its seat in one of the ports in the
Frame's Valve Base (1). Or the Exhaust Valve Stem (71) may be slightly bent at the o-ring groove
and rubbing on the port wall. See the Hydraulic Valve Removal and Assembly sections.
• There is the possibility that the Valve Compression Spring (68) is too weak to properly hold the
Ball Bearing (74) against the seat to keep the intake port (right side) closed when there’s plenty
of air pressure in the Tank (1) and no load (or light load) on the ETJ.
• There’s a slight chance air in the Tank (1) is getting past the Dash 245 O-ring (5) when there’s
no load (or a light load) while there’s plenty of air pressure in the Tank. If this condition is true,
the Pistons (3,12) will also become “jerky” or “jumpy”. See the earlier section dealing with this
condition.
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Page 11

Meyer Hydraulics Corp.
ETJ 2000 Series Operating & Servicing Instructions
Foot Valve Control Assembly
1. Turn the Foot Valve Control (61) upside down.
2. Push the Compression Spring (62) over the small end of the Release Locking Pin (63) and apply a
liberal amount of motor oil over the entire Pin assembly.
3. Slide the above assembly into the hole found in the front and side of the Foot Valve Control until
the small portion of the Release Locking Pin protrudes through the backside of the Foot Valve
Control as far as possible. At this point the Compression Spring should be fully compressed and the
large portion of the Release Locking Pin should be recessed beyond the front lip of the Foot Valve
Control.
4. Slide the .5" Snap Ring (64) over the large portion of the Release Locking Pin and release the Pin.
Gently push the small portion of the Pin until the Snap Ring pops into the groove.
5. Check for free movement of the Release Locking Pin from where the Snap Ring rests against the
inside front lip of the Foot Valve Control; and can travel to where the large end of the Pin is flush
with the outside front lip of the Foot Valve Control.
Return to Table of Content
Hydraulic Valve Removal
1. Remove the Air Valve Cover Assembly by disconnecting the Tank Air Hose (44) from the 90 Degree
Elbow Fitting (36/46) at the top of the Frame Tank (1); and then removing the Cover Anchor Bolts
(55). Tighten a 1/4" n.p.t. pipe plug into the Elbow Fitting.
2. Disconnect the two Air Valve Extension Springs (82) from the FVC Leveling Rod (83) being
careful not to damage them.
3. Loosen the Hex Socket Set Screw (79) at least one-half turn with a 3/16" hex key that passes down
through the top hole in the Foot Valve Control (61). Tighten a pair of curved jaw vise-grips onto
the protruding end of the FVC Pivot Pin (65) and pull the Pin completely out from the Foot Valve
Control. Remove the Air Valve Kicker (80) and the Foot Valve Control thereby exposing the
hydraulic valves.
4. Making sure a 1/4" n.p.t. pipe plug is tightened into the 90 Degree Elbow Fitting (36/46) at the top
of the Frame Tank (1), tilt the ETJ backwards until the jack's top touches the floor and the hydraulic
valves point upwards. This will keep the hydraulic oil from leaking out of the valve ports and the 90
Degree Elbow Fitting.
5. Remove the Spring Compression Plate (67) by unscrewing its Retaining Bolt (66). Unscrew the
Valve Stem Connector Bolts (76) and remove the Hydraulic Valve Rockers (77) by turning them
upwards; and then sliding them off from the bar they pivot on.
6. Pull both the Intake Valve Stem (72) Assembly and the Exhaust Valve Stem (71) Assembly out of
their respective ports. Take a pen or rod magnet and remove the 7/16" Ball Bearing (74) from each
valve port.
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Page 12

Meyer Hydraulics Corp.
ETJ 2000 Series Operating & Servicing Instructions
Hydraulic Valve Assembly
1. Keep the ETJ tilted backwards where the ETJ top touches the floor and the hydraulic valve ports
point upwards...and the 1/4" pipe plug is tightened into the 90 Degree Elbow Fitting (36/46) at
the top of the Frame Tank (1). This will keep the hydraulic oil from leaking out of the valve ports
and from coming out of the 90 Degree Elbow Fitting.
2. Inspect the hydraulic valve ports to insure they are free from foreign matter and that the ball seats
are not damaged (never attempt to rework a damaged ball seat without first contacting the
factory for proper instructions. Any unguided rework may lead to major and costly damage).
Drop a 7/16" Ball Bearing (74) into each of the ports.
3. If the Valve Stem Connectors (69) are not threaded onto Valve Stems (71)(72), thread the Finished
Jam Nuts (70) and the Valve Stem Connectors about two-thirds the way onto the Valve Stems.
4. Inspect the Hydraulic Valve O-Rings (73) for wear or cuts; and replace if necessary. Oil the
O-Rings liberally before sliding them over the Valve Stems (71)(72). Put a film of oil over the
large diameter portion of the Valve Stems. Carefully slide each Valve Stem assembly into its
respective port making sure the O-Rings do not get damaged.
5. With the Valve Stem (71)(72) assemblies pushed as far as possible into their respective ports in the
Frame's valve block (1), adjust the total Valve Stem assembly length to where they protrude out
4-7/8" from a 8" square valve block, or 5-5/8" from the newer 8" round valve block.
6. Spread a little grease on each side of the Valve Rocker Bar that's welded onto the FVC
Support Block (78). Push grease into each side of the pivot hole in each one of the Valve Stem
Connectors (69).
7. Put the FVC Pivot Pin (65) back into the FVC Support Block (78), but don't tighten it in place.
8. Place the Valve Compression Springs (68) over the ends of the Valve Stem Connectors (69) and
put the Spring Compression Plate (67) down onto the FVC Support Block (78) with the FVC
Pivot Pin (65) protruding out through the Plate's oval slot. Secure the Spring Compression Plate
with a 1/2" x 1" NC HH Bolt (66). Tap the top side of the Plate one way or the other with a
hammer until the FVC Pivot Pin freely comes out.
9. Slide a Hydraulic Valve Rocker (77) onto each side of the Valve Rocker Bar with the small pivot
hole towards the jack body. Then swing the Valve Rockers down to straddle the Valve Stem
Connectors (69).
10. Connect each Valve Rocker (77) to its respective Valve Stem Connector (69) with the Special 5/16"
Pivot Bolt (76) and a 5/16" NC Hex Lock Nut (75). Tighten... and then back off the Lock Nut (75)
1/2 to 3/4 of a turn Never use a worn bolt as it can greatly affect the Valve Stem assembly's
movement.
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Meyer Hydraulics Corp.
ETJ 2000 Series Operating & Servicing Instructions
11. Check each one of the Valve Stem (71)(72) assemblies for proper length adjustment by placing a
3/8" or smaller rod into each one of the inspection holes in the Spring Compression Plate (67).
Insert it until it hits the end of the Valve Stem Connector (69). The depth should be 1/2" (.500")
plus or minus 1/32" (.031") from the end of the Valve Stem Connector to the outside surface of
the Spring Compression Plate.
>>>>>>>> WARNING <<<<<<<<
More than 9/16" (.562") depth from the end of the Valve Stem Connector to
the outside surface of the Spring Compression Plate will dangerously lower the
force being applied to the Ball Bearing (74) which could lead to the ETJ's pistons
raising or lowing unexpectedly.
12. If adjustment is necessary, put a 3/4" open-end wrench onto the hex area of the Intake (72) or
Exhaust (71) Valve Stem and loosen the Finished Jam Nut (70) away from the Valve Stem
Connector (69). Turn the Valve Stem with the wrench to lessen or expand the depth reading
mentioned in step 11 above. Each full turn will change the depth reading .042" (just a little over
1/32"). Tighten the Finished Jam Nut back up against the Valve Stem Connector.
13. Spread grease on top of the toe of each Valve Rocker (77) where it will make contact with the
bottom of the Foot Valve Control (61). Apply a liberal amount of grease onto the FVC Pivot Pin
(65) with a buildup on the end that will first be inserted. Lower the Foot Valve Control Assembly
(60) onto the FVC Support Block (78) and insert the Pivot Pin through the front of the Foot
Valve Control, through the FVC Support Block, and just out the back of the Foot Valve Control.
14. Apply some grease into the pivot hole in the Air Valve Kicker (80) and lower it down between the
Tank (1) and the Foot Valve Control (61). Push the FVC Pivot Pin (65) through the Air Valve
Kicker until the Pivot Pin rests against the Tank. Tighten the 3/8" Hex Socket Set Screw (79)
against the Pivot Pin. Gently put the ETJ back upright.
15. If the Treadle Leveling Rod (83) isn't assembled onto the Air Valve Kicker (80), push the Leveling
Rod through the tab. Thread a Hex Nut (81) on each side until they just touch the tab while the
Leveling Rod is approximately center.
16. Hook the Air Valve Extension Springs (82) to the Spring Anchor Tabs on top of the Foot Valve
Control (61) by having the hook of the Spring go through the Anchor Tabs from inside to outside.
Tilt the Air Valve Kicker (80) to one side and connect that side's Spring to the FVC Leveling Rod
(83); then tilt the Air Valve Kicker over to the other side just enough to hook the other Spring to
the Leveling Rod.
17. Hold the Air Valve Kicker (80) straight up and down with one hand. With the other hand adjust
the FVC Leveling Rod (83) one way or the other by turning the Hex Nuts (81), until the Foot
Valve Control Assembly (61) is horizontal with the floor. Tighten both Hex Nuts against the Air
Valve Kicker's tab.
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Meyer Hydraulics Corp.
ETJ 2000 Series Operating & Servicing Instructions
18. Flip the toggle switch on the Air Valve (47) towards the center of the cover. Hold the Air Valve
Kicker (80) straight up and down with one hand; and with the other hand gently put the Air
Valve Cover Assembly against the Block welded on front of the Tank (1) with a gentle upward
movement to allow the toggle switch on top of the Air Valve (47) to move upwards into the hole
at the top of the Air Valve Kicker (80). Tighten the Air Valve Cover Assembly to the Frame Tank
with the Cover Anchor Bolts (55), making sure the Air Valve toggle switch remains in the Air Valve
Kicker's hole.
19. With a shop rag under the 90 Degree Elbow Fitting (36/46) at the top of the Frame Tank (1) to
catch a little oil, remove the 1/4" n.p.t. pipe plug. Reconnect the Tank Air Hose (44) to the
90 Degree Elbow Fitting. Do not over-tighten as this can damage the hose end.
Return to Table of Content
Load Pistons Removal
>>>>>>>> CAUTION <<<<<<<<
Two vise-grip ratcheting chain wrenches are needed to remove the Pistons (3)(12).
Do not attempt to remove the Lower Piston Cap (15) without these as the Lower
Piston (3) may become damaged.
1. Disconnect the shop air from the ETJ Under-the-Hoist Jack. The Tank (1) must be completely free
of compressed air, and both Pistons (3)(12) must be completely lowered prior to the following
operations.
2. With a pair of 90 degree snap ring pliers, remove the Snap Ring (100) that's on the Lower Rocker
Pin (99) just under the structure that's welded onto the Lower Rocker Weldment (94). Pull the
Lower Rocker Pin completely out while holding onto the Lower Rocker Weldment. Lift the Lower
Rocker Weldment up while at the same time lifting the Shaft Tilt Insert (97) out of the Upper
Piston (12).
3. Carefully wipe all dirt and grime off both Pistons (3)(12), the Lower Piston Cap (15) and the Tank
Top (6).
4. Using a speed wrench with a 3/4 inch socket, first turn one of the Tank Top Retainer Bolts (10)
one complete turn counter-clockwise. Then turn the other Bolt two turns. Now turn the first Bolt
two turns...and so on until both Bolts are completely unthreaded from the Frame Tank (1). The
Tank Top (6) should now have been raised to the point where the Tank Sealing O-Ring (4) is
fully visible.
5. Using two people with each grabbing the Tank Top (6), slowly lift the Tank Top and Pistons (3)(12)
out of the Frame Tank (1). Gently lay the assembly down on some 4x4 wood pieces, shop rags,
newspaper—anything that will keep it out of the dirt and protected from damage. Do not stand
the Pistons up on end.
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Meyer Hydraulics Corp.
ETJ 2000 Series Operating & Servicing Instructions
6. Remove the Air Bleeder Plug (16). Fold a shop rag three or four times and wrap it around the
Lower Piston Cap (15). Wrap the chain of one of the vise-grip ratcheting chain wrenches over the
rag and tighten the wrench.
7. Wrap the chain of the second vise-grip ratcheting chain wrench over the larger 3 7/8 inch diameter
section at the bottom of the Lower Piston (3). Now loosen the Lower Piston Cap (15) from the
Lower Piston. It may require a sharp rap with a mallet against the wrench to break the Cap loose.
Return to Table of Content
Load Pistons Installation
>>>>>>>> CAUTION <<<<<<<<
Two vise-grip ratcheting chain wrenches are needed to install the Pistons (3)(12).
Do not attempt installation without them as damage to the Lower Piston Cap
(15) and Pistons may occur.
1. Any of the O-Rings that are being installed onto the Tank Top (6) and the Lower Piston Cap (15)
should have a film of grease on them prior to installation. Great care should be taken to insure the
Piston-Cap O-Ring (13) doesn't become damaged by the threads. Both Pistons (3)(12), Lower
Piston Cap and the Tank Top assembly must be free of any foreign matter.
2. Do not attempt to install the Load Pistons without using the specially manufactured Tank Top
Retainer Bolts (10) that use the Bolt Retainer Spring Pins (11). Without them, future removal of
the Tank Top would be very difficult. Make sure these Bolt assemblies are onto the Tank Top
at this time.
3. Spread a film of grease on the complete inside bore of the Lower Piston Cap (15); and on
the complete inside bores of the Tank Top (6), plus the outside portion that will go into the
Frame Tank (1).
4. Install the Piston Retainer Ring (2) into the Lower Piston (3), if necessary. Gently slide the Tank Top
(6) over the top of the Lower Piston. Gently lower the Upper Piston (12) down into the Lower
Piston. Thread the Lower Piston Cap (15) down into the Lower Piston by hand.
5. Wrap the chain of a vise-grip ratcheting chain wrench over the larger 3 7/8 inch diameter section
at the bottom of the Lower Piston (3) and tighten. Fold a shop rag three or four times and wrap it
around the Lower Piston Cap (15). Wrap the chain of the second vise-grip ratcheting chain
wrenches over the rag and tighten. Now tighten the Lower Piston Cap firmly against the Lower
Piston (3). Remove both wrenches.
6. Using two people with each grabbing the Tank Top (6), slowly lower the assembly down into the
Frame Tank (1). If this operation is done too fast, oil may cascade out of the Frame Tank. Tighten
the Air Bleeder Plug (16) into the Lower Piston Cap (15).
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Meyer Hydraulics Corp.
ETJ 2000 Series Operating & Servicing Instructions
7. Using a speed wrench with a 3/4 inch socket, first turn one of the Tank Top Retainer Bolts (10) one
complete turn clockwise. Then turn the other Bolt two turns. Now turn the first Bolt two
turns... and so on until the Tank Top (6) is firmly secured to the top of the Frame Tank (1).
8. Step down all the way on the right (intake) side of the Foot Valve Control (61) and raise both
Pistons (3)(12) slowly to their fully extended position. Step down all the way on the left side of the
Foot Valve Control until one of the Pistons lowers about one inch. Slowly unscrew the Air Bleeder
Plug (16) at the top of the Lower Piston (3) just enough to allow the trapped air to escape.
When a steady stream of oil flows out, re-tighten the Air Bleeder Plug.
9. Go to the following Lifting Head Assembly section and complete any steps necessary.
Return to Table of Content
Lifting Head Assembly
1. Press the Foot Valve Control (61) down on the right (intake) side until the top of the Upper Piston
(12) is about chest high.
2. Spread a film of grease on the Lower Rocker Pin (99) and put the Snap Ring (100) on one end
only. Put the Shaft Tilt Insert (97) into the top of the Upper Piston (12). Put some hydraulic oil
on the threaded rod that's anchored to the Lower Rocker Weldment (94) and thread the rod into
the receiving threaded hex bar of the Shaft Tilt Insert until the threaded rod sticks out below the
threaded hex bar about 1 inch.
3. Lower the Lower Rocker Weldment (94) over the Shaft Tilt Insert (97) and the Upper Piston (12).
Pass the Lower Rocker Pin (99) through the one ear of the Lower Rocker Weldment that doesn't
have the structure welded to it; and then through the Upper Piston, the Shaft Tilt Insert, and out
the other ear of the Lower Rocker Weldment. With a pair of 90 degree snap ring pliers, install the
second Snap Ring (100) onto the Lower Rocker Pin.
4. If necessary, put some hydraulic oil on the threaded rod that's anchored to the Upper Lifting Head
(93) and thread the rod into the receiving threaded hex bar of the Lower Rocker Weldment (94)
until the threaded rod sticks out below the threaded hex bar about 1 inch.
5. Install a Snap Ring (92) onto the Upper Tilt Pivot Pin (91) in the groove next to the buckle. Spread a
film of grease over the section of the Pin between the snap ring grooves. Lower the Upper Lifting
Head (93) over the Lower Rocker Weldment (94). Pass the Pin through the Upper Lifting Head and
the Lower Rocker Weldment so that the chamfered hole end of the Pin is over the threaded rod
that's anchored to the Lower Rocker Weldment. Install the second Snap Ring (92) onto the Pin.
6. If necessary, thread a Jam Nut (95) onto the threaded rod that's anchored to the Lower Rocker
Weldment (94); and onto the one anchored to the Upper Lifting Head (93). Thread the Tilt Crank
Knob (96) 5/8 to 3/4 inch onto each threaded rod. Tighten the Jam Nuts against the Knobs with
sufficient force to "lock" them in place.
Return to Table of Content
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Meyer Hydraulics Corp.
ETJ 2000 Series Operating & Servicing Instructions
Air Valve Cover Assembly Notes
1. To remove the Air Valve Cover Assembly, first disconnect the Tank Air Hose (44) from the 90 Degree
Elbow Fitting (36/46) at the top of the Frame Tank (1). Then unscrew the two Cover Anchor Bolts
(55). Allow the Air Valve Cover (40) to drop slightly so the Air Valve's (47) toggle switch will "drop"
out of the Air Valve Kicker (80).
2. To assemble the complete Air Valve Cover Assembly, start by tightening the Safety Pop-off Valve (50)
into the Pipe Female Tee (51). Now tighten the Air Muffler (48) and the Air Hose (57) into the Air
Valve (47). Then tighten the Pipe Nipple (49) and the Pipe Female Tee to the Air Valve. Take the
Air Valve sub assembly and loosely tighten the Air Valve to the anchor welded inside the Air Valve
Cover (40). Now put the 1/8" 90 Degree Elbow (54) through the hole in the Air Valve Cover and
tighten it into the Pipe Female Tee (51). Finish by tightening the Air Valve nuts....but do not
over-torque!
3. No longer necessary
4. To re-assemble the Air Valve Cover Assembly back onto the ETJ, flip the Air Valve's (47) toggle switch
towards the center of the Cover. Hold the Air Valve Kicker (80) straight up with one hand; and
with the other hand gently put the Cover Assembly against the Block welded on front of the Tank
(1) with a gentle upward movement to allow the Toggle to move upwards into the hole at the top
of the Air Valve Kicker (80). The Air Valve Cover's (40) holes should now line up with the Block's
threaded holes.
Return to Table of Content
Page 18

Meyer Hydraulics Corp.
ETJ 2000 Series Operating & Servicing Instructions
ETJ & ETJ-EH PARTS LIST
ITEM NO. PART NO. DESCRIPTION QTY.
ETJ Under-the-Hoist Jack
1 ETJA-F FRAME TANK 1
2 6738 3.125" INTERNAL RING 1
3 9570 ETJA-RSL LOWER PISTON 1
4 5239 DASH 261 6.75" x 7." O-RING 1
5 5238 DASH 245 4.375" x 4.625" O-RING 1
6 9525 ETJA-83 TANK TOP 1
7 5254 DASH 342 3.625" x 4." O-RING 1
8 5224 DASH 206 .5" x .75" O-RING 2
9 6626 1/2" SAE FLAT WASHER 2
10 ETJA-89 TANK TOP RETAINING BOLT 2
11 6948 1/8" x 1." SPRING PIN 2
12 9575 ETJA-RSU UPPER PISTON 1
13 5236 DASH 235 3.125" x 3.375" O-RING 1
14 8046 ETJ AIR BLEEDER PLUG WARN LABEL 1
15 9502 ETJA-58 LOWER PISTON CAP 1
16 5748 1/8" N.P.T. HEX HEADED PIPE PLUG 1
17 5244 DASH 336 2.875" x 3.25" O-RING 1
18 6700 3100-50 1/2" SNAP RING 3
19 ETJA-110 TRANSPORT HANDLE PIN 1
20 ETJA-H TRANSPORT HANDLE 1
21 7880 HANDLE GRIP 2
22 6252 3/8" x 1" NC HH BOLT 16
23 6025 3/8"-16 NC HEX NUT 18
24 7249 21-4 MC PC 4" SWIVEL CASTER 4
25 7895 #2 3/16" SH "U" DRIVE SCREW 2
26 7890 BRASS OVAL I.D. TAG 1
27 8048 ETJ WARNING/INSTRUCTION STICKER 1
28 5751 1/4" N.P.T. HEX HEADED PIPE PLUG 1
29 8050 OIL LEVEL STICKER 1
30 8044 AIR BLEEDING INSTRUCTION LABEL 1
31 8010 M.H.C. CORPORATE 5" DECAL 1
32 8045 MAXIMUM AIR PRESSURE LABEL 1
33 8043 AIR CAPACITY CHART LABEL 1
34 8047 AIR VALVE OILING ALERT LABEL 1
35 - NO LONGER USED
36 5641 1/4" NPT 90 DEGREE STREET ELBOW 1
37 ---------
38 ---------
39 ---------
40 ETJA-J AIR VALVE COVER (only) 1
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Meyer Hydraulics Corp.
ETJ 2000 Series Operating & Servicing Instructions
ITEM NO. PART NO. DESCRIPTION QTY.
41 8940 3/8" NEOPRENE RUBBER 3/4" x 1 1/2" 1
42 8040 M.H.C. PRODUCT SERVICE LABEL 1
43 8049 ETJ SAFETY VALVE WARNING 1
44 5553 ETJ 2000 SERIES 10" AIR HOSE 1
45 5645 1/4" N.P.T. F/F ELBOW 1
46 (same as #36)
47 5791 CLIPPARD MJTV-3 AIR VALVE 1
48 5795 SMALL 1/8" N.P.T. AIR MUFFLER 1
49 5692 1/8" N.P.T. x 1 1/2" PIPE NIPPLE 1
50 5785 160 psi SAFETY POP-OFF VALVE 1
51 5662 1/8" N.P.T. PIPE FEMALE TEE 1
52 ETJ-REG02 AIR REGULATOR w/GAUGE ASSY. 1
53 9002 1/4" AIR GAUGE (250psi) 1
54 5642 1/8" N.P.T. 90 DEGREE STREET ELBOW 1
55 6240 5/16" x 3/4" NC HH BOLT 2
56 8005 M.H.C. CORPORATE 2 1/2" DECAL 1
57 5554 ETJ 2000 SERIES 13" AIR HOSE 1
58 ---------
59 ---------
60 ETJA-GA FOOT VALVE CONTROL ASSEMBLY 1
61 ETJA-G FOOT VALVE CONTROL (only) 1
62 7420 F4 COMPRESSION SPRING 1
63 9504 ETJA-67 RELEASE LOCKING PIN 1
64 (same as #18)
65 ETJA-69 FVC PIVOT PIN 1
66 6300 1/2" x 1" NC HH BOLT 1
67 ETJA-63 SPRING COMPRESSION PLATE 1
68 7431 VALVE COMPRESSION SPRING 2
69 9510 ETJA-70 VALVE STEM CONNECTOR 2
70 6027 3/8"-24 NF HEX FINISH JAM NUT 2
71 9520 ETJA-72 EXHAUST VALVE STEM 1
72 9515 ETJA-71 INTAKE VALVE STEM 1
73 5222 DASH 204 3/8" x 5/8" O'RING 2
74 5918 7/16" GR25 BALL BEARING 2
75 6020 5/16" NC HEX LOCK NUT 2
76 6225 SPECIAL 5/16" PIVOT BOLT 2
77 ETJA-I HYDRAULIC VALVE ROCKER 2
78 --------- FVC SUPPORT BLOCK (part of #1)
79 6015 3/8-16 x 3/8" HEX SOC SET SCREW 1
80 ETJA-K AIR VALVE KICKER 1
81 (same as #23)
82 7443 AIR VALVE EXTENSION SPRING 2
83 ETJA-96 FVC LEVELING THREADED ROD 1
84 ---------
85 ---------
Page 20