Buyers PH55 - Manual

9049 Tyler Blvd. • Mentor, Ohio 44060
Phone (440) 974-8888 • Fax (440) 974-0165
Toll-Free Fax 800-841-8003 • buyersproducts.com
Installation Instructions
PH55/PH55AC 50-Ton Pintle Hooks
WARNING
Maintain adequate vertical (tongue) load to
properly control the trailer (generally 10%) but do
not exceed the above rated capacities.
Mounting Instructions:
For installations without an air chamber, use steps 1, 2,
& 6 below.
1. Use mounting structure of sufficient strength
to support the rated capacity of the pintle hook in
accordance with SAE J849 (Type II).
2. Use the hole pattern dimensions shown. See
mounting hole pattern drawing.
3. Determine the cut length for the air chamber rod
and cut rod to length (steps 3a or 3b). Before cutting the
rod, assemble jam nut past the determined cut point
and remove after cutting to clean up the threads. Do
not cut chamber rod any shorter than 1.75".
3a. If the mounting configuration uses the supplied
chamber mount bracket: Cut length (L) = mounting
plate thickness (T) + 1.00
3b. If the mounting configuration does not utilize
the chamber mount bracket: Cut length (L) = total
mounting thickness (X) – 0.75
4. Assemble air chamber to mount bracket or custom
mounting structure. Torque fasteners to 133-155 ft-lbs.
5. Assemble jam nut and plunger to the air chamber's
rod. The plunger should be threaded onto the end of the
rod with approximately 1.5" of engagement.
6. Install pintle hook assembly using eight new ¾"
grade 8 bolts. Torque fasteners to a minimum torque
of 200 ft-lbs. Do not exceed the bolt manufacture's
recommended torque.
7. Connect the air supply. Refer to vehicle manufacture
for their recommendations for an air source, plumbing,
and pressure protection.
8. Check the plunger adjustment. The plunger should
extend enough to clamp on a 1-1/4" drawbar and retract
enough to easily remove 1-5/8" drawbar. To adjust the
plunger, loosen the jam nut on the chamber rod and
tighten or loosen the plunger to increase or decrease
the amount of extension and re-tighten the jam nut
after the adjustment is completed. The plunger must be
threaded onto the chamber rod a minimum of ½" after
the adjustments have been made.
Capacity
100,000 lbs. Maximum Gross Trailer Weight
20,000 lbs. Maximum Vertical Load
Description:
Rigid type pintle hook with air actuated plunger
(recommended). The plunger provides minimum
clearance with some shock absorption. This pintle
hook can be utilized with or without the air chamber
and plunger.
Towing Applications:
Trailers, full trailers, doubles, and triples operating
within the stated capacities. Reduce capacities by 25%
for off road applications and use with swivel type trailer
drawbar.
Drawbar Eye Dimensions:
2-3/8" to 3" inside diameter with 1-1/4" to 1-5/8"
diameter cross-section
WARNING
Do not damage latch. Be careful with the drawbar
when coupling or uncoupling hitch.
PH55 PH55AC
X
1/2"
MIN
L
1.75" MIN