2. Sta-Put w/ Strap Application/Use

3. Placement: Placement: A Lo-Pro TM chock set includes one (1) Left-hand (anchor chock) and one (1) Right-hand (active chock w/ Strap). Two (2) sets are required per vehicle. The chocks secure to the railcar tie-down track. Application: Chock Placement Positioning the Lo-Pro TM Devices The Lo-Pro TM chocks are etched with “Left” or “Right” for ease of identification. Set 1 Set 2 Example of Lo-Pro Chocks applied to a vehicle

4. Step # 1: Step # 1: Starting with the Left-hand Lo-Pro TM chock, disengage the Release Lever. Push the Blue Lock Handle aside, then pull the Release Lever upward. Application: STEP 1 Disengage the Left-hand Chock’s Locking Mechanism B) Pull the Release Lever upward. A) Push the Blue Lock Handle aside Example of the Release Lever in ‘locked’ position, secured by the Blue Lock Handle. Blue Lock Handle Release Lever DISENGAGED/UNLOCKED LOCKED Push aside the Blue Lock Handle. Pull the Release Lever Upward.

5. Step # 2: Step # 2: With the Release Lever disengaged, position the Left-hand Lo-Pro TM on the railcar tie-down track as close to the vehicle wheel as possible*. Application: STEP 2 Position the Left-hand Lo-Pro TM Chock Position the Lo-Pro TM as close to the vehicle wheel as possible*. The Lo-Pro TM bolt heads will engage the track openings. Lo-Pro TM underside view * AAR Guidelines allow up to a 3/4“ space between the chock and the vehicle wheel. Always follow the vehicle manufacturer securement guidelines.

6. Step # 3: Step # 3: Push the Release Lever down to ‘Lock’ position. When fully secured, the Blue Lock Handle will rest above the Release Lever. Application: STEP 3 Secure the Locking Mechanisms CORRECT !!! Push the Release Lever down to lock in place. INCORRECT When fully locked, the Blue Lock Handle sits ABOVE the Release Lever.

7. Step # 4: Step # 4: Repeat steps 1, 2 and 3 to secure the Right-hand chock to the railcar tie-down track. Application: STEP 4 Repeat steps 1 through 3 with the Right-hand Lo-Pro TM chock. STEP 1STEP 2STEP 3 Disengage: Push aside the Blue Lock Handle, then Pull the Release Lever upward. Position: Set the Lo-Pro TM chock in place. Lock: Push the Release Lever down. Ensure the Blue Lock Handle rests ABOVE the Release Lever.

8. Step # 5: Step # 5: Pull the strap over the tire and affix the J-Hook onto the Left-Hand Chock Torque Tube. Application: STEP 5 Secure the J-hook. Torque Tube J-Hook A)Step on the Release Pawl Lever to unwind the strap. B) Pull the strap over the tire. C) Hook the J-Hook to the Torque Tube of the Left- Hand (anchor) Chock. A B C C

9. Step # 6: Step # 6: Center the strap over the middle of the tire, with the Cleat Tread Lugs engaged in the tire groove. Ensure the Strap is pulled through torque tube neatly and not twisted. Application: STEP 6 Ensure the Strap is Properly Positioned. C) The middle cleat is centered at the top of standard size tires; or Between 10 and 2 O’clock position for different size tires. B) Cleat Tread Retention Lugs are engaged into the tire groove. A) The strap is centered in the middle of the tire. D) Ensure the strap is pulled through the Torque tube, not twisted or pinched.

10. Step # 7: Step # 7: Pull the strap slack away from the J-hook. Then ratchet the Right-hand adjustable chock to tighten the strap until there is a slight compression of the tire. Then, further tighten 3 CLICKS. Application: STEP 7 Tighten the Right-Hand Chock Strap Tighten the Right-hand chock an additional 3-Clicks by rotating the wrench clockwise. Do not over tighten! If you have clicked more than twice, release and retighten. Starting from the J-hook, pull the strap slack toward the Left-hand anchor chock. J-Hook

11. Removal: Removal: Release the chocks from the tie-down tracks. Wrap the cleat strap around the Right-hand chock. Store in the provided side screen chock pans. Removal & Storage: Releasing the Lo-Pro TM from the tie-down track. Push the Release Pawl Lever down with your foot to release the strap. Push the Blue Locking Handle aside and lift the Release Lever upward to release chocks from the tie- down track. Un-clasp the J-hook, then wrap the strap around the right-hand Lo-Pro Chock. Store Lo-Pro TM ’s in the railcar Chock Box. *Wrap the cleat strap around the right-hand chock. Step 1 Step 2 Step 3 Step 4 Wrap the strap around the Right-hand chock before storing.

12. For further information Contact: FCGCustomerService@Wabtec.com