Nissan Armada 2025-2026 Service and Repair Manual: Hammers
A hammer is used to correct dents, projections or other deformations. Various shapes have been designed according to their purposes.
(1) TYPES AND FEATURES OF HAMMERS
(2) SELECTION AND MAINTENANCE OF HAMMERS
It is necessary to choose lighter or heavier hammers according to application or purpose.
Hammer weight should be selected according to the user's physical strength.
Hammer maintenance is important. In particular, the hammer face must always be kept clean. A distorted or damaged hammer face will lead to distorted panels.
Accordingly, hammers for sheet metal work must not be used to hit other objects such as a chisel. Do not mix sheet metal hammers with ordinary hammers.
Repairing the face of a sheet metal hammer is explained below.
NOTE:
To avoid damage to the vehicle, always use separate hammers on aluminum and steel.
(a) Clamp the hammer in a vise with the hammer face up.
If the hammer face is deformed, use a hand file to smooth it.
(b) File the face in all directions. Do not file in only one direction.
(c) Chamfer the edge of the face to prevent it from nicking or distoring the sheet metal.
(d) After smoothing the hammer face, polish it with an oil stone or #400 - #800 abrasive paper wrapped around a wooden block. Polish the face in all directions.
(e) To check the finish, apply marking paint to the hammer face . Hit a piece of flat sheet metal on a flat surface.
| GOOD | : The paint comes off the center of the face. |
| NO GOOD | : The paint comes off at a section other than the center or the face. Grind the surface again. |
(3) HOLDING AND HITTING WITH THE HAMMER
(a) Holding the hammer
Hold the hammer handle tightly with the middle, third and little fingers so that it will not slip when it is swung.
Hold the sides of the hammer handle lightly with the thumb and index finger to prevent sideways movement.
(b) Hammering
For rough straightening work, strike strongly.
For ordinary correcting work, swing the hammer using the wrist. In this case, the arm serves as a guide to determine the hammer direction.
The hammer face should be flush with the panel surface when hitting. If the hammer edge strikes the surface, it will nick the panel.
Hammering should be approximately 100 hits a minute, and should be kept constant. An irregular hammering rhythm will lead to an uneven hammering force. Sheet metal will stretch when it is hammered. Irregular hammering also makes sheet metal correction more difficult.
Sheet Metal Work Tools
This section explains various tools used in body repair work. ...
Dollies
Dollies are used in combination with a hammer. They are a 1 kg - 2 kg (2 lb - 4 lb) steel blocks, heavier than a hammer, with various curves and planes.
(1) USE OF DOLLIES
(a) Place the dolly on the u ...
Other materials:
Work Procedure
Perform action test to verify the customer's concern.
Perform action test and check the system operation after system diagnosis.
WARNING:
CAUTION:
Fully understand the following items well before the road test;
System description for I-DA: Refer to System Description.
Handling precaution: Refer to ...
Harness repair procedure
HARNESS REPAIR OVERVIEW
Harness Repair Website and Resources
Wiring Harness and connector repair information including disassembly videos are located on the Harness Repair website. Links are found in ASIST and in the eWD. The website contains the following information:
Picture of connector with colo ...
Multiport Fuel Injection System or Engine Control System
Before connecting or disconnecting any harness connector for the multiport fuel injection system or ECM:
Turn ignition switch to “OFF” position.
Disconnect negative battery terminal.
Otherwise, there may be damage to ECM.
Before disconnecting pressurized fuel line from fuel pump to injectors, b ...
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