Do you have a question about the Equal-i-zer 90-00-0600 and is the answer not in the manual?
Questions and answers
Aaron Richie
May 18, 2025
Would jackknife be considered a full ninety
Degree or close to it.
In other words if I am not completely jackknifed, should I be ok to continue to backup? Presently no image I took the bar off to back in driveway on first backup next time will examine
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Summary of Contents for Progress Equal-i-zer 90-00-0600
Page 1
OWNER’S maNual Premium Sway Control Performance maDE IN THE U.S.A. Hitch Ball Not Included 90-00-0600 - 600 lb. max loaded tongue / 6,000 lb. max loaded trailer weight 90-00-1000 - 1,000 lb. max loaded tongue / 10,000 lb. max loaded trailer weight 90-00-1200 - 1,200 lb.
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If you do not understand any part of this manual contact a qualified Equal-i-zer hitch dealer in your area or progress mfg. Inc. customer service ® at 1-800-478-5578 or by visiting www.EqualizerHitch.com. congratulations on your purchase of The Original Equal-i-zer ®...
Torque Wrench capable of 320 ft. lbs. of torque. (Shank bolts) recommended tools for installing the Hitch Ball: 1 7/8” Thin walled socket (available from progress mfg. Inc.) Torque Wrench capable of 430 ft. lbs. of torque (or higher if hitch ball manufacturer specifies).
Important Safety Information Failure follow all safety warnings may result in severe injury or death. WARNING read, understand, and follow all safety warnings, setup, use, and main‑ WARNING tenance instructions of your trailer, tow vehicle, and hitching equipment before installing your hitch or towing your trailer. Never cut, weld, grind, bend, or modify hitch components in any way.
WARNING Check all hardware before each trip. do not tow your trailer until all WARNING bolts and nuts have been checked for wear and fatigue, are properly tightened, and all pins and clips are securely in place. do not tow your trailer on rough roads. do not tow your trailer through profound ditches, dips, or swales.
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weight gets distributed, and helps generate the friction needed to reduce trailer sway. Sway control: Integrated sway control is a built-in, patent pending feature of your Equal-i-zer hitch. unlike conventional chain style weight distribution hitch- es, you do not need to purchase, install, store, or hook up any additional hardware to get the benefits of this sway control.
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a setup achieving adequate weight distribution usually brings the trailer back to a position parallel to the ground after coupling it to the tow vehicle and engaging weight distribution. It also brings the fRONT of the tow vehicle back down to just slightly higher than the uncoupled height. The REaR of the tow vehicle sits slightly lower than its uncoupled height, but noticeably higher than its height when coupled without weight distribution engaged.
Step 1 - Setup Location: Before installing the hitch, the tow vehicle and trailer should be loaded just as they will be while traveling. This includes full propane and fresh wa- ter tanks, and any other cargo the tow vehicle (passengers & gear) or trailer will carry, including aTVs for toy haulers.
Official Equal-i-zer hitch balls are manufactured for the right fit and ® may be purchased from your local RV dealership or online at www.equalizerhitch.com. If another brand of hitch ball is used, make sure that it meets size requirements and meets or exceeds all weight ratings. Hitch balls require a 1-7/8”...
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Figure 2a Figure 2b In some cases, the shank may need to be turned upward, or a specialty length shank may be needed so that the ball can be placed at the correct height. See Figure 3. Figure 3 Insert a 3/4” shank bolt with a flat washer through the top slot in the bolt channel and shank hole to hold the head at the correct height.
NOTE: Extended bumper guards, truck campers, or rear mounted spare tires can limit turning radius and may lead to a collision between tow vehicle and trailer in a tight turn unless a longer shank is used. If you are not able to turn tightly with the standard length shank, consult with your dealer about purchasing a lon- ger specialty shank.
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Insert two 1/2” x 1-1/2” bolts through each outside link plate from the back side. The slot in the back should keep the head of the bolt from rotating. Thread a 1/2” x 3-1/2” bolt through the single hole of the outside and inside link plates from the outside in.
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Slide the l-brackets onto the link plate studs with the spring arm plate facing away from the trailer. for the initial setup, leave 2 holes showing at the top above the studs and two below. They may need to be adjusted up or down later.
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(see figure 7d). This bolt (95-03-5610) may be obtained from progress mfg. Inc. locate the hole in the outside link plate that is nearest the center of the trailer frame (bottom of the four holes).
Tighten to look like this Correct Correct Incorrect Incorrect Figure 8 Illustrations are exaggerated for easier visualization. Step 5 - Tension Spring Arms: WARNING Never tow with loose socket bolts. Tighten socket bolts to a minimum of WARNING 45 ft. lbs. torque before each towing session. NOTICE do not pound directly on the sockets to move them.
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Insert the socket pin through the hole in the socket and spring arm, and secure it with the socket pin clip. You may need to use the spring arm as a lever to spread the sockets open. This is to allow the spring arms to be lifted and placed onto the l-bracket.
Retract the tongue jack until the weight of the trailer settles onto the tow vehicle, and the foot of the jack comes off the ground about 1”. 3” minimum Figure 12 Step 6 - Weight Distribution Adjustments: use the following guidelines to set up and adjust your Equal-i-zer for weight distribution.
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WARNING Weight distribution is only one of many things that influence sway. The WARNING operator is responsible for making necessary adjustments to all contrib‑ uting factors in order to minimize sway. Good adjustment: You have most likely achieved good weight distribution adjustment if your measurements show the following: 1.The fRONT of the tow vehicle measures the same as, or slightly higher than its uncoupled height.
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NOTE: Tow vehicle wheelbase significantly effects how the tow vehicle reacts to weight distribution adjustments. Shorter tow vehicles move farther up or down than longer ones with the same washer or l- bracket change. You may not notice much movement at all in the front end of a long tow vehicle, while a short tow vehicle may raise or drop significantly.
Over adjustment occurs when there is too much weight being transferred to the front axles of the tow vehicle. See Figure 16. Figure 16 If the tow vehicle raises above the unloaded height at the rear wheel well your Equal-i-zer hitch is over adjusted. Over adjustment is a rare occurrence, but it is a very dangerous situation where loss of control and jack-knifing is possible, especially in wet or slick road conditions.
Highest measurement lowest measurement -(minus) Difference between highest and lowest If the difference between the highest and lowest measurement is 1-1/4” or more, you should try adjusting the hitch ball height. If it is less than 1-1/4” different, complete Step 8 and tow a short distance with this setup to see how it handles before making any adjustments.
Do not paint over the warning stickers. If the warning stickers become worn or unreadable, con- tact progress mfg. Inc. for free replacement. www.equalizerhitch.com...
Appendix A Troubleshooting Guide Problem Possible Cause Suggested Correction Trailer Sway Not enough weight follow “under adjustment” distribution guidelines to add spacer wash- ers or raise l-bracket. Tongue weight too light Weigh loaded trailer and tongue weight. Tongue weight should be a minimum of 400lbs., and usually between 10%-15% of Gross Trailer Weight.
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Trailer is Too low Improper hitch ball follow Step 7 - Trailer angle or Too High in height adjustment section to change front (more than ball height. 1-1/2” from level) Improper hitch ball consult your local Equal-i-zer height because shank is hitch dealer about using a spe- too short cialty length shank.
Customer Service: for customer service, replacement parts, and accessories we recommend that you visit your local dealership that is familiar with Equal-i-zer brand ® products whenever possible. If at any time you need customer service and are unable to reach a dealership, please call our toll free customer support www.equalizerhitch.com.
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For example; full water and propane tanks that are tongue weight when you leave can become full waste tanks that subtract tongue weight for the return trip. Shifting just 40 gallons of water from the front to the back of your trailer can change 330 lbs. of positive tongue weight to 330 lbs.
This warranty does not include labor charges nor does it include transportation charges for returning the product to the con- sumer. To the extent allowed by law, progress mfg. Inc. shall not be liable for any incidental, consequential, or any other damages including, without limitation, breach of any implied warranty, merchantability, or fitness for a particular purpose of any Equal-i-zer product.
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More great towing products from Progress Mfg. automatic jack foot • No more wood blocks to stack or store • Adds 6” instantly • Puts itself away • No pins to pull or insert • No bending over or kneeling down Visit: www.FastwayTrailer.com...
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Do you have a question about the Equal-i-zer 90-00-0600 and is the answer not in the manual?
Questions and answers
Would jackknife be considered a full ninety Degree or close to it. In other words if I am not completely jackknifed, should I be ok to continue to backup? Presently no image I took the bar off to back in driveway on first backup next time will examine