Complete repair guide for the PALOMINO PUMA 25RLSS – Entry Door Lock Replacement.
Parts & Tools You’ll Need
- WELLUCK RV Entry Door Lock with Paddle Deadbolt, Camper Door Latch Handle, RV Door Lock Replacement Kit Secure for Camper Horse Travel Trailer Cargo Hauler (Zinc Alloy White) — Bauer Products Entry Door Lock (keyed)
- RV Designer T507 TriMark Motorhome Entrance Door Lock with Deadbolt – Fit for 1.38-1.58” RV Motorhome Doors – Right/Left-Hand Use – FMVSS 206 Compliant — Trimark 60-100 Door Lock Assembly
- 1000-Piece KW1 Rekey Kit Compatible with Kw-ikset – Lock Cylinder Pinning & Replacement Set with Bottom Pins, Master Pins, Springs, 5 commonly Cylinder Service Tools & 3 Test Keys Repair Rekeying Kit — Key Cylinder Replacement + Keys
- Lippert Replacement RV Baggage Door Latch Strike, No Assembly Required, Easy DIY Installation for 5th Wheels, Travel Trailers and Motorhomes – 314301, Silver — Door Latch Strike Plate Replacement
- Safoner Aluminum RV Screen Door Latch Right Handle Replacement Kit for Travel Trailer, Camper, Motorhome- RV Accessories for Inside — Screen Door Handle + Latch Assembly
- HZRVTECH All-Metal RV Door Lock Replacement, Black Motorhome Door Latch Lock Fits 4.25″ x 4.50″ Opening for Class A and Class C RVs, Includes 4 Keys — Push Button Door Latch (interior)
- Gear Hugger Multipurpose Lubricant – Eco-Friendly (11 oz, Pack of 2), Rust Remover – Garage Door Lubricant Spray, Door Hinge Lubricant & Lock Lubricant – Plant-Based, No Petroleum, No PTFE — White Lithium Grease Spray
- QWORK Solid Steel Puck Lock Set with Hasp – Reinforced Security Design for Trucks, Vans & Gates — Security Door Hasp + Padlock
Step 1: Diagnose and Prepare the Work Area
Start by inspecting your entry door lock to determine which components need replacement—check if the key turns smoothly, if the deadbolt extends fully, or if the latch engages properly. Gather all necessary parts (Bauer Products Entry Door Lock or Trimark 60-100 assembly, Key Cylinder Replacement, Door Latch Strike Plate, and White Lithium Grease Spray) and locate a clean, well-lit workspace outside your RV. Have a Phillips head screwdriver, 7/16-inch wrench or socket set, and masking tape ready to label components during disassembly, then close and lock your RV windows and designate a safe place for small hardware.
Step 2: Remove the Interior Door Panel and Hardware
From inside your Puma 25RLSS, locate the interior screws securing the door panel trim and carefully remove them using your Phillips screwdriver—typically you’ll find 3-4 screws around the door frame. Gently pry away the interior panel to expose the latch mechanism and deadbolt assembly, being careful not to damage the vinyl or aluminum frame. Disconnect the Push Button Door Latch from its mounting bracket by unscrewing the two fasteners holding it in place, then set the panel and latch assembly aside in a safe location.
Step 3: Unbolt and Extract the Exterior Lock Assembly
From the outside of your RV, locate the bolts securing the Trimark or Bauer lock assembly to the door frame—you’ll typically find two bolts on the exterior face and one or two on the interior edge. Using your 7/16-inch wrench, remove all bolts by turning counterclockwise, and support the lock assembly with your other hand so it doesn’t fall. Carefully pull the entire assembly away from the door, noting the orientation and positioning of the key cylinder and latch components for proper reinstallation of your replacement parts.
Step 4: Inspect and Clean the Door Frame Opening
Examine the door frame opening where the lock assembly was mounted, looking for any rust, corrosion, or debris that could prevent proper seating of your new lock. Use a clean rag or soft brush to remove any dirt, old grease, or oxidation from the bolt holes and frame surfaces—this ensures clean threads and proper torque specifications. Check that the bolt holes are not stripped or enlarged; if they are, you may need slightly larger diameter bolts or should apply thread-locking compound during reassembly.
Step 5: Install the New Lock Assembly and Key Cylinder
Position your new Bauer Products Entry Door Lock or Trimark 60-100 assembly into the door opening, aligning the bolt holes carefully and ensuring the key cylinder rotates freely. Insert all bolts through the exterior face and interior mounting points, and hand-tighten them first to verify proper alignment—the deadbolt should retract and extend smoothly without binding. Once aligned, use your wrench to torque the exterior bolts to 8-10 foot-pounds and interior bolts to 6-8 foot-pounds, checking after each rotation that the mechanism operates freely without catching.
Step 6: Install Strike Plate and Reassemble Interior Components
Mount the Door Latch Strike Plate on the door jamb using the provided screws, ensuring it aligns with your newly installed deadbolt and latch—the strike plate should sit flush against the frame with no gaps. Reconnect the Push Button Door Latch interior assembly by screwing it back into its mounting bracket and ensuring the pushbutton operates the internal latch without resistance. Apply White Lithium Grease Spray to the deadbolt, key cylinder, and latch mechanisms, then work the lock through several cycles to distribute the lubricant evenly and ensure smooth operation.
Step 7: Test Lock Function and Verify Security
Insert your new keys into the exterior cylinder and rotate them fully in both directions, confirming that the deadbolt extends and retracts completely without sticking or resistance. Test the Push Button Door Latch by depressing it repeatedly from inside to verify the latch engages and disengages smoothly, then open and close the door 10-15 times to ensure all components work in unison. Finally, lock the door from the outside with your key, step inside, and attempt to open it from the inside using only the push button—it should remain secure until you unlock it with the key from outside, confirming your Palomino Puma 25RLSS entry door is properly secured.