Technical
Procedure

Trailer Suspension Systems
QUIK-DRAW®

SUBJECT: Operation, Maintenance
and Retrofit Procedures
LIT NO: L738 
DATE: February 2018
REVISION: C

Van Applications
(HK™ Series, VANTRAAX® and ULTRAA-K® models)

Platform Applications
(INTRAAX®-SP models)

TABLE OF CONTENTS
Van Applications (HK™ SERIES, VANTRAAX® and ULTRAA-K® Models)...................................................... 2
Introduction................................................................................................................................................. 2
Operating Instructions.................................................................................................................................. 2
Replacing Air Actuator.................................................................................................................................. 3
Replacing QUIK-DRAW Control Valve............................................................................................................. 4
QUIK‑DRAW Retrofit Installation — Van Applications (HK™ SERIES and VANTRAAX® Models) Only.................... 5
Platform Applications (INTRAAX®-SP Models)......................................................................................... 8
Introduction................................................................................................................................................. 8
INTRAAX®-SP Operating Instructions.............................................................................................................. 9
Manually Operating the Locking Pins........................................................................................................... 10
Replacing Air Chamber Actuator................................................................................................................. 12
Replace QUIK‑DRAW Control Valve.............................................................................................................. 13
QUIK‑DRAW Plumbing — Platform Applications (INTRAAX®-SP Models) Only................................................. 13

QUIK-DRAW® Operation, Maintenance and Retrofit Procedures
OPERATING INSTRUCTIONS
VAN APPLICATIONS (HK™ SERIES,
®
®
VANTRAAX AND ULTRAA-K MODELS) This procedure defines how to pneumatically retract the

locking pins using QUIK‑DRAW and trailer air supply. DO
NOT manually retract locking pins. If QUIK‑DRAW is not
functioning, seek service for repairs.

INTRODUCTION

QUIK‑DRAW® is a pneumatic locking pin release
system designed to make slider repositioning fast and
convenient. It is controlled by a single push/pull control
valve, located on a control panel at the front driver’s
side of the slider assembly.

1. Clear and keep all bystanders away from the
tractor and trailer during QUIK‑DRAW operation.
2. On a level surface, apply the trailer parking brakes.

IMPORTANT: QUIK‑DRAW is designed to operate only
when the trailer parking brakes are
engaged. If the trailer parking brakes
are not engaged, the QUIK‑DRAW
control valve will not stay in the pulled
out position and the actuators will not
inflate.

3. Remove the manual stop bar (if applicable) and
move it to the desired position.
4. Pull the QUIK‑DRAW control valve knob (Figure 1)
out to its fully extended position to pneumatically
retract the locking pins.
NOTICE: Do not force or use tools on the
control valve knob.

NOTE: The QUIK‑DRAW valve should self reset when
parking brakes are released.

5. Visually ensure each pin is fully retracted.
If necessary, gently rock trailer forward and
backward to fully retract bound locking pins.

The QUIK‑DRAW system will create up to 900 pounds
of force (if required) to retract bound locking pins.
If necessary, rocking of the trailer as defined in the
OPERATING INSTRUCTIONS may be required to free
bound locking pins.

6. Move trailer until slider is in desired position. Trailer
parking brakes must remain applied.
7. Push QUIK-DRAW valve knob all the way in to
engage locking pins. This deflates the actuators,
causing the locking pin springs to force the locking
pins outward into the slider box and body rail holes.
When aligned, the locking pins will slip into the
body rail holes, securing the slider box to the body
rails.

For general safety and precautionary statements, refer
to Hendrickson literature number T12007, available at
www.Hendrickson-intl.com/TrailerLit.
For assistance in the United States and Canada, call
Hendrickson Trailer Technical Services at 866-RIDEAIR
(743-3247) or email HTTS@Hendrickson-intl.com.

8. Visually ensure each pin has extended through the
slider box and body rail holes.
NOTICE: Chamfered ends of locking pins must
project through body rail at all four
locations.
9. Install manual stop bar directly behind slider
system.
10. Gently rock trailer forward and backward to
completely engage misaligned locking pins.
WARNING: Do not drive the trailer without
pushing the QUIK‑DRAW control valve
in and verifying that all four locking
pins have extended through the slider
box and body rail holes.

QUIK-DRAW
control valve

Figure 1: QUIK‑DRAW control valve location

2

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QUIK-DRAW® Operation, Maintenance and Retrofit Procedures
REPLACING AIR ACTUATOR

INSTALLING AIR ACTUATOR

Follow these procedures for replacing a QUIK‑DRAW air
actuator:
PREPARATION
For more details on preparing a trailer and suspension
for service, refer to T12007.

Connection before mid 9/2012

1. Apply the trailer parking brakes and chock the
trailer wheels.
2. Completely depressurize trailer air system by
opening air tank drain valve.

Locking pin after mid 9/2012, prior to 2/2015

REMOVING AIR ACTUATOR
NOTE: Leave at least one locking pin assembled as a
reference for later reassembly.
Air actuator beginning 2/2015

1. Disconnect air supply line(s) from fitting(s) on end
of actuator.

Figure 3: Air actuator-locking pin assembly

Figure 3 shows changes that have been made to
actuators and locking pins. Replacement parts and
assembly may differ from the original.

Cotter pin

Front Actuator

Rear Actuator

Clevis pin
Tee fitting

Straight
fitting

Washer

Figure 2: Air actuator fastening hardware

2. Remove cotter pin and washer (Figure 2).

Figure 4: Actuator identification guide

NOTE: The locking pin spring should remain in place
when replacing an air actuator.

1. Select the proper actuator for the location (front or
rear, as shown in Figure 4).

3. Push clevis pin (Figure 2) through locking pin
and air actuator end. Reach under the frame
crossmember and pull clevis pin completely out
through access hole in frame crossmember.

2. The plumbing diagram, Figure 12 on page 7,
shows the actuator fittings located on the same
side of the slider box as the QUIK-DRAW control
valve. Position the actuator, with fitting, as shown in
the figure.

4. Repeat Step 2 and Step 3 at other end of actuator.

3. Referencing the applicable image in Figure 3,
position each end of the actuator with the locking
pin.

5. Remove the actuator.

4. Align holes (Figure 2 and Figure 3) and insert the
clevis pins.
5. Install washer and cotter pin (Figure 2) at each end
of the actuator.
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3

QUIK-DRAW® Operation, Maintenance and Retrofit Procedures
REMOVING CONTROL VALVE

6. Connect air supply line(s) to fitting on end of
actuator.

To actuator
Control
To emergency
valve
air supply line

7. Repeat above for any additional actuators.
8. Close drain valve on trailer air tank.

To air reservoir
pressure
protection valve

9. Fill the air tank and trailer air system.

Exhaust tube

10. Verify proper QUIK‑DRAW operation by pulling
the QUIK‑DRAW control valve knob (Figure 1 on
page 2) out to its fully extended position.

Figure 6: QUIK‑DRAW valve air line connections

1. Mark, label or otherwise identify air lines (Figure 6,
Figure 13 on page 8 or Figure 14) with
corresponding fittings on QUIK‑DRAW control valve
before disconnecting.

11. Check air connections for leaks; tighten as
necessary.

REPLACING QUIK-DRAW CONTROL VALVE

Follow these procedures for replacing the QUIK‑DRAW
control valve for all applications:

2. Disconnect air lines from fittings on QUIK‑DRAW
control valve.

Control valve

3. Remove the two control valve mounting bolts and
locknuts.
4. Remove control valve.
INSTALLING CONTROL VALVE
NOTE: Aftermarket QUIK‑DRAW valves are available
with or without fittings. If without fittings and
original fittings are in good condition, install the
original fittings onto the valve and tighten to
7±1 ft. lbs. (10 Nm) of torque.

Valve spacer
(if included)
Valve mounting
bracket

1. Remove any shipping plugs or hardware from the
new control valve.
2. Orient the QUIK‑DRAW control valve so the exhaust
hose is facing downward and place the control
valve, with spacer (if equipped, Figure 5), on the
valve mounting bracket.

Figure 5: QUIK-DRAW control valve components

NOTE: Although the QUIK-DRAW valve is the same
for all applications, the mounting brackets
and hardware (Figure 5) will vary between
Hendrickson slider suspension types (HKANT,
HKAT, HKAL, UTKNT, AAZ, etc.). Capturing photos
of the original mounting may prove helpful
when installing the replacement valve.

3. Using the two 1/4 - 20 x 1.5 inch hex head bolts,
provided in the retrofit kit, insert the bolts through
the QUIK-DRAW valve, spacer (if equipped) and
mounting bracket holes (Figure 5).
4. Thread the two torque prevailing flange nuts onto
the bolts.

PREPARATION
For more details on preparing a trailer and suspension
for service, refer to T12007.

5. Tighten to 7±1 ft. lbs. (10 Nm) of torque.

1. Apply the trailer parking brakes and chock the
trailer wheels.

6. Connect air supply lines to control valve fittings as
shown in Figure 6.

2. Completely depressurize the trailer air system by
opening air tank drain valve.

7. Close drain valve on trailer air tank.
8. Fill the air tank and trailer air system.

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L738 C

QUIK-DRAW® Operation, Maintenance and Retrofit Procedures
QUIK‑DRAW RETROFIT INSTALLATION —
VAN APPLICATIONS (HK™ SERIES AND
VANTRAAX® MODELS) ONLY

9. Verify proper QUIK‑DRAW® operation by pulling
the QUIK‑DRAW control valve knob (Figure 1 on
page 2) out to its fully extended position.

The van application for QUIK‑DRAW can be installed
on any Hendrickson K-2® Slider subframe. Use the
following procedure to remove the existing pin release
mechanism and replace it with QUIK‑DRAW:

10. Check air connections for leaks; tighten as
necessary.
11. Remove trailer wheel chocks and release trailer
parking brakes.

Remove cotter pin,
washer and clevis pin

NOTE: The QUIK‑DRAW valve should self reset when
parking brakes are released.

Crank arm
weldment
Handle guide
Handle

Locking pin link
Remove nuts and bolts
Figure 7: Removing existing pin release mechanism

Figure 7 shows a manual release mechanism.
Procedures for removing other mechanical release
mechanisms are similar.
PREPARATION
For more details on preparing a trailer and suspension
for service, refer to T12007.
1. Apply the trailer parking brakes and chock the
trailer wheels.
2. Completely depressurize the trailer air system by
opening air tank drain valve.
REMOVING HANDLE MECHANISM AND LINKS
1. Remove the two handle nuts and handle bolts from
the handle assembly (Figure 7).
2. Remove handle by pulling through handle guide.
3. Remove the front locking pin link (Figure 7) by
removing the cotter pin, washer and clevis pin from
each end of the locking pin link.
4. Unfasten front crank arm weldment (Figure 7) by
removing cotter pin, washer and clevis pin from
locking pin.
5. Repeat steps 3 and 4 with the rear locking pin link.

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5

QUIK-DRAW® Operation, Maintenance and Retrofit Procedures
Rear crank
arm weldment

Rear crossmember

First cut

Slide long
section of
pipe forward
and out

Pipe weldment
Slide short section of
pipe rearward and out

To front

Second cut

Figure 8: Removing pipe weldment

REMOVING PIPE WELDMENT
1. Cut the pipe weldment in half directly in front of the
rear crank arm weldment (Figure 8).
Install
hex head
bolts here

2. Remove the long front section of pipe weldment by
pulling it out from the front of the slider assembly
(Figure 8).
3. Cut the pipe weldment in half again, this time
between the rear crank arm weldment and the rear
crossmember (Figure 8).

AFTER
RETROFIT

Control valve
mounting
bracket
A. New bracket on existing, side view
Torque
prevailing
flange nut

4. Remove the short section of pipe weldment by
pulling it out from the rear of the slider assembly
(Figure 8).

.375" flat
washer

5. Remove any remaining pieces of pipe weldment.
INSTALLING NEW QUIK‑DRAW® VALVE
A new QUIK‑DRAW control valve mounting bracket,
provided with the retrofit kit, must be fastened over the
existing handle guide bracket to mount the QUIK‑DRAW
valve.

Hex head
bolt
B. Bolting new bracket to existing, top view
Figure 10: New QUIK‑DRAW control valve mounting bracket

1. Place the new bracket on the existing bracket
(Figure 9) as shown in Figure 10.
2. Assemble two hex head bolts, torque prevailing
flange nuts and two of the 3/8 inch washers
provided in the retrofit kit.

BEFORE
RETROFIT

3. Install the two bolt assemblies (Figure 10, B) into
the handle guide cutout so the hex heads are on
the outside of the bracket and the torque prevailing
flange nuts and washers are on the inside.

Handle guide
bracket

4. Tighten to 30 ft. lbs. (41 Nm) of torque.

Figure 9: Existing handle guide bracket, handle removed

6

L738 C

QUIK-DRAW® Operation, Maintenance and Retrofit Procedures
7. Using the two 1/4 - 20 x 1.5 inch hex head bolts,
provided in the retrofit kit, insert the bolts through
the QUIK-DRAW valve, spacer (if equipped) and
mounting bracket holes (Figure 11).
Recommended
location for
L712 slider
system operation
instructions decal

8. Thread the two torque prevailing flange nuts onto
the bolts.
9. Tighten to 7±1 ft. lbs. (10±0 Nm) of torque.

Hex-head
bolts

INSTALLING AIR ACTUATORS
Valve spacer

Side view

1. Install front and rear actuators as instructed in the
INSTALLING AIR ACTUATOR on page 3.

Torque prevailing flange nuts

2. Check for proper actuator orientation (Figure 12,
rear actuator has a straight fitting, front actuator
has a tee fitting).
3. Install air lines (Figure 12), beam clip assembly, air
line looms and grommets as shown in Figure 13.

Top view
Figure 11: Installing the QUIK‑DRAW® control valve

NOTE: When installing the longer (rear actuator) air
line, start at the rear actuator and work forward.
This will provide the small slack loop desirable
at the front actuator.

5. Remove any shipping plugs or hardware from the
new QUIK-DRAW control valve.
6. Orient the QUIK‑DRAW control valve so the exhaust
hose is facing downward and place the control
valve, with spacer (if equipped, Figure 11), on the
valve mounting bracket.
To emergency air supply

QUIK-DRAW
control valve

Tee fitting
Spring
brake relay
Front
linear air
actuator

Reservoir
Pressure
protection
valve
Straight fitting
Rear linear
air actuator

Figure 12: QUIK‑DRAW plumbing diagram for van applications (HK™ Series and VANTRAAX® models)
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QUIK-DRAW® Operation, Maintenance and Retrofit Procedures
Air line loom